Windows 2003 Domain Controller Security Technical Implementation Guide

  • Version/Release: V6R37
  • Published: 2015-06-03
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The Windows 2003 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements were developed from Federal and DoD consensus, as well as the Windows 2003 Security Guide and security templates published by Microsoft Corporation. Comments or proposed revisions to this document should be sent via e-mail to the following address: disa.stig_spt@mail.mil.
b
Physical security of the Automated Information System (AIS) does not meet DISA requirements.
CM-6 - Medium - CCI-000366 - V-1070 - SV-29617r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.001
Vuln IDs
  • V-1070
Rule IDs
  • SV-29617r1_rule
Inadequate physical protection can undermine all other security precautions utilized to protect the system. This can jeopardize the confidentiality, availability, and integrity of the system. Physical security of the AIS is the first line protection of any system.System AdministratorInformation Assurance OfficerPECF-1
Checks: C-7883r1_chk

Interview the SA to determine if equipment is located in an access controlled area. Note: Servers will be located in rooms, or locked cabinets, that are accessible only to authorized systems personnel. Authorized user access should be verified at two points (i.e. building access and server room). User workstations containing sensitive data should be in access controlled areas.

Fix: F-31r1_fix

Relocate equipment to a controlled access area.

b
Shared user accounts are permitted on the system.
IA-2 - Medium - CCI-000764 - V-1072 - SV-29621r1_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
1.008
Vuln IDs
  • V-1072
Rule IDs
  • SV-29621r1_rule
Shared accounts do not provide individual accountability for system access and resource usage.System AdministratorInformation Assurance OfficerIAGA-1
Checks: C-7885r1_chk

Interview the SA to determine if any shared accounts exist. Any shared account must be documented with the IAO. Documentation should include the reason for the account, who has access to this account, and how the risk of using a shared account (which provides no individual identification and accountability) is mitigated. Note: As an example, a shared account may be permitted for a help desk or a site security personnel machine, if that machine is stand-alone and has no access to the network.

Fix: F-33r1_fix

Remove any shared accounts that do not meet the exception requirements listed.

c
Systems must be at supported service packs (SP) or releases levels.
CM-6 - High - CCI-000366 - V-1073 - SV-29340r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
2.005
Vuln IDs
  • V-1073
Rule IDs
  • SV-29340r1_rule
Systems at unsupported service packs or releases will not receive security updates for new vulnerabilities and leaves them subject to exploitation. Systems must be maintained at a service pack level supported by the vendor with new security updates.HKSystem AdministratorVIVM-1
Checks: C-34619r1_chk

From the menu bar click “Start” and then “Run”. Type “winver.exe” in the dialog box and click OK. If the "About Windows" box displays the following Service Pack(s), then this is a finding. Unsupported Service Packs: Windows 2003 – any prior to SP2

Fix: F-30098r1_fix

Update the system to a supported service pack. Application of new service packs should be thoroughly tested before deploying in a production environment.

c
An approved, up-to-date, DOD antivirus program must be installed and used.
CM-6 - High - CCI-000366 - V-1074 - SV-29468r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
5.007
Vuln IDs
  • V-1074
Rule IDs
  • SV-29468r2_rule
Antivirus programs are a primary line of defense against the introduction of viruses and malicious code that can destroy data and even render a computer inoperable. Utilizing an antivirus program provides the ability to detect malicious code before extensive damage occurs. Updated virus scan data files help to protect a system, since new malware are identified by the software vendors on a continual basis.If another recognized antivirus product is installed and has a current signature file, this would still be a finding, but the severity code can be reduced to a Category III.System AdministratorECVP-1
Checks: C-51967r1_chk

V-19910 has been added as part of the McAfee and Symantec antivirus STIGs for signature files. If the system uses one of these programs, address them with that requirement and mark this one as N/A. If none of the following products are installed and supported at an appropriate maintenance level, this is a finding: Symantec Antivirus at the following level is not installed: Corporate Edition Version 9.0.6 or higher Corporate Edition Version 10.x or higher Endpoint Protection Version 11.0 or higher McAfee’s Antivirus Version 8.0 or higher is not installed. And The antivirus signature file is out of date. If the antivirus program signature file has not been dated within the past 7 days, this is a finding. Note: The version numbers and the date of the signature file can generally be checked by starting the antivirus program from the toolbar icon or from the Start menu. The information may appear in the antivirus window or be available in the Help > About window. The location varies from product to product. Note: E-mail versions of antivirus software are not acceptable as protection for Windows operating systems. However, both the e-mail antivirus software and the operating system antivirus software can coexist and run on the same system. Documentable Explanation: If another recognized antivirus product is installed and has a current signature file, this would still be a finding, but the severity code can be reduced to a Category III.

Fix: F-53829r1_fix

Configure the system with supported, DoD-approved antivirus software. Ensure the signature file is current.

a
The system allows shutdown from the logon dialog box.
CM-6 - Low - CCI-000366 - V-1075 - SV-1075r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.007
Vuln IDs
  • V-1075
Rule IDs
  • SV-1075r1_rule
Displaying the shutdown button may allow individuals to shut down a system anonymously. Only authenticated users should be allowed to shut down the system. Preventing display of this button in the logon dialog box, ensures that individuals who shut down the system are authorized and tracked in the systems Security event log.HKSystem AdministratorECSC-1
Checks: C-32716r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Shutdown: Allow system to be shutdown without having to log on” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ShutdownWithoutLogon Value Type: REG_DWORD Value: 0

Fix: F-28803r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Shutdown: Allow system to be shutdown without having to log on” to “Disabled”.

a
System information backups are not created, updated, and protected according to DISA requirements.
CM-6 - Low - CCI-000366 - V-1076 - SV-29625r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
1.013
Vuln IDs
  • V-1076
Rule IDs
  • SV-29625r1_rule
Recovery of a damaged or compromised system in a timely basis is difficult without a system information backup. A system backup will usually include sensitive information such as user accounts that could be used in an attack. As a valuable system resource, the system backup should be protected and stored in a physically secure location.System AdministratorInformation Assurance OfficerCODB-1
Checks: C-7887r1_chk

Interview the SA to determine if system recovery backup procedures are in place that comply with DoD requirements. Any of the following would be a finding: •The site does not maintain emergency system recovery data. •The emergency system recovery data is not protected from destruction and stored in a locked storage container. •The emergency system recovery data has not been updated following the last system modification.

Fix: F-36r1_fix

Implement data backup procedures that comply with DoD requirements.

b
Access permissions for event logs must conform to minimum requirements.
AU-9 - Medium - CCI-000162 - V-1077 - SV-29200r2_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
2.001
Vuln IDs
  • V-1077
Rule IDs
  • SV-29200r2_rule
Event logs are susceptible to unauthorized, and possibly anonymous, tampering if proper access permissions are not applied.System AdministratorInformation Assurance OfficerECTP-1
Checks: C-51979r1_chk

Verify the permissions for the Windows event logs. If the permissions for these files are not as restrictive as the permissions listed below, this is a finding. The event log files "AppEvent.Evt," "SecEvent.Evt," and "SysEvent.Evt" are found in the "%SystemRoot%\SYSTEM32\CONFIG" directory by default. They may have been moved to another folder. Administrators - Read & Execute "Auditors" group - Full Control SYSTEM - Full Control Note: See V-1137 for the Auditors group requirement.

Fix: F-53859r1_fix

Configure the access permissions on the event logs to the following: The event log files "AppEvent.Evt," "SecEvent.Evt," and "SysEvent.Evt" are found in the "%SystemRoot%\SYSTEM32\CONFIG" directory by default. They may have been moved to another folder. Administrators - Read & Execute "Auditors" group - Full Control SYSTEM - Full Control

b
File-auditing configuration does not meet minimum requirements.
AU-12 - Medium - CCI-000172 - V-1080 - SV-29472r1_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
2.007
Vuln IDs
  • V-1080
Rule IDs
  • SV-29472r1_rule
Improper modification of the core system files can render a system inoperable. Further, modifications to these system files can have a significant impact on the security configuration of the system. Auditing of significant modifications made to the system files provides a method of determining the responsible party.Automated checking sometimes reports this as a false finding. If a manual review of a questionable finding shows auditing to be set correctly, then this would not be a finding.System AdministratorECAR-1, ECAR-2, ECAR-3
Checks: C-23r1_chk

If system-level auditing is not enabled, or if the system and data partitions are not installed on NTFS partitions, then mark this as a finding. Open Windows Explorer and use the file and folder properties function to verify that the audit settings on each partition/drive is configured to audit all "failures" for the "Everyone" group. If any partition/drive is not configured to at least the minimum requirement, then this is a finding.

Fix: F-52r1_fix

Configure auditing on each partition/drive to audit all "Failures" for the "Everyone" group.

c
Local volumes are not formatted using NTFS.
AC-3 - High - CCI-000213 - V-1081 - SV-29476r1_rule
RMF Control
AC-3
Severity
High
CCI
CCI-000213
Version
2.008
Vuln IDs
  • V-1081
Rule IDs
  • SV-29476r1_rule
This is a category 1 finding because the ability to set access permissions and audit critical directories and files is only available by using the NTFS file system. The capability to assign access permissions to file objects is a DOD policy requirement. The FAT file system only provides the capability to make files read-only and hidden. The capability to change these attributes is not restricted to any users. An unauthorized individual could boot the machine from a floppy disk and gain full and unrecorded access to file data. trueSystem AdministratorInformation Assurance OfficerECCD-2, ECCD-1
Checks: C-24r1_chk

Open Windows Explorer and use the Properties function on each fixed local partition/drive to examine the File System specified on the General Tab. If the File System does not specify NTFS, then this is a finding. Documentable Explanation: Some hardware vendors create a small FAT partition to store troubleshooting and recovery data. No other files should be stored here. This requirement should be documented with the IAO.

Fix: F-53r1_fix

Format all partitions/drives to use NTFS.

b
Registry key auditing configuration does not meet minimum requirements.
AU-12 - Medium - CCI-000172 - V-1088 - SV-29629r2_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
3.010
Vuln IDs
  • V-1088
Rule IDs
  • SV-29629r2_rule
Improper modification of the Registry can render a system useless. Modifications to the Registry can have a significant impact on the security configuration of the system. Auditing of significant modifications made to the Registry provides a method of determining the responsible party.Sometimes audit settings may be incorrectly reported as findings. If a manual review reveals that they are set properly, then this would not be a finding.System AdministratorECAR-3
Checks: C-40667r2_chk

Verify system level auditing of object access is properly configured (see V-6850 “Audit object access”). If this is not configured to audit “Failure”, this requirement is a finding. Verify detailed registry auditing is configured. Run “Regedit”. Navigate to the HKEY_LOCAL_MACHINE\SOFTWARE and HKEY_LOCAL_MACHINE\SYSTEM keys. On the menu bar, select “Edit” then “Permissions”. Click on the “Advanced” button. Select the “Auditing” tab. Verify the following is configured: Type - Fail Name - Everyone Access - Full Control Apply to - This key and subkeys If the “Everyone” group, at a minimum is not being audited for all failures, this is a finding.

Fix: F-28953r1_fix

Configure the HKEY_LOCAL_MACHINE\SOFTWARE and HKEY_LOCAL_MACHINE\SYSTEM keys to audit the Everyone Group for all failures. Audit settings should be propagated to subkeys.

b
The required legal notice must be configured to display before console logon.
AC-8 - Medium - CCI-000048 - V-1089 - SV-29632r3_rule
RMF Control
AC-8
Severity
Medium
CCI
CCI-000048
Version
3.011
Vuln IDs
  • V-1089
Rule IDs
  • SV-29632r3_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.System AdministratorInformation Assurance OfficerECWM-1
Checks: C-32717r3_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive Logon: Message text for users attempting to log on” is not set to the following, then this is a finding. You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. Any OS versions that do not support the full text version must state the following: “I've read & consent to terms in IS user agreem't.” Deviations are not permitted except as authorized by the Deputy Assistant Secretary of Defense for Information and Identity Assurance. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LegalNoticeText Value Type: REG_SZ Value: See message text above

Fix: F-28804r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options ->“Interactive Logon: Message text for users attempting to log on” as outlined in the check.

a
Caching of logon credentials is not limited.
CM-6 - Low - CCI-000366 - V-1090 - SV-28977r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.013
Vuln IDs
  • V-1090
Rule IDs
  • SV-28977r2_rule
The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons such as the user’s machine is disconnected from the network or domain controllers are not available. Even though the credential cache is well-protected, storing encrypted copies of users passwords on systems do not always have the same physical protection required for domain controllers. If a system is attacked, the unauthorized individual may isolate the password to a domain user account using a password-cracking program, and gain access to the domain.HKSystem AdministratorECSC-1
Checks: C-59r2_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive Logon: Number of previous logons to cache (in case Domain Controller is unavailable)” is not set to “2” logons or less, this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: CachedLogonsCount Value Type: REG_SZ Value: 2

Fix: F-78r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive Logon: Number of previous logons to cache (in case Domain Controller is not available)” to “2” logons or less.

a
System does not halt once an event log has reached its maximum size.
AU-5 - Low - CCI-000140 - V-1091 - SV-1091r1_rule
RMF Control
AU-5
Severity
Low
CCI
CCI-000140
Version
3.015
Vuln IDs
  • V-1091
Rule IDs
  • SV-1091r1_rule
If the security log is full, it becomes possible for some events to not be logged. Selecting this option will halt the computer when the log is full to prevent losing any events. If the system halts as a result of a full log, an administrator must restart the system and reset the log. This work-stoppage event can be prevented, provided the IAO periodically archives the event logs.trueIn the event of an audit failure, the system will halt processing and will only allow accounts with administrator privileges to access the system.System AdministratorInformation Assurance OfficerECRR-1
Checks: C-63r1_chk

This check verifies that the site has a documented policy and provable procedures in place to identify, in a timely manner, that a system has stopped writing to the Event logs. The policy and procedures will include instructions for protecting and archiving log data. If a site does not have a documented policy and procedures , then all servers, and machines that a site deems critical, will be required to utilize the CrashOnAuditFail Registry setting to ensure that if an audit failure occurs, the system will halt (see Note below). Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Audit: Shut down system immediately if unable to log security audits” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa Value Name: CrashOnAuditFail Value Type: REG_DWORD Value: 1 Documentable: Yes Documentable Explanation: The site has a documented policy and provable procedures in place to identify, in a timely manner, that a system has stopped writing to the Event logs which is accepted by the IAO. Note: If this is set to “Enabled” and system halts, the value for the following registry value must be changed back from “2” to “1” using the registry editor. HLKM\System\CurrentControlSet\Control\LSA\CrashOnAuditFail

Fix: F-80r1_fix

Create site procedures for identifying, in a timely manner, that the system has stopped writing to the event log, and specifying actions to take to preserve Event log information and correct the problem. OR Configure Servers to halt processing if there is an audit failure, or an event log has filled up.

c
Anonymous shares are not restricted.
SC-4 - High - CCI-001090 - V-1093 - SV-28981r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.018
Vuln IDs
  • V-1093
Rule IDs
  • SV-28981r1_rule
This is a Category 1 finding because it allows anonymous logon users (null session connections) to list all account names and enumerate all shared resources, thus providing a map of potential points to attack the system. By default, Windows allows anonymous users to list account names and enumerate share names.trueIn a mixed Windows environment this setting may cause systems with down-level operating systems to fail to authenticate, may prevent their users from changing their passwords, and may cause problems with managing printers and spools. In domains supporting Exchange 2003 servers and versions of Outlook earlier than Outlook 2003, the setting “Network access: Do not allow anonymous enumeration of SAM accounts and shares” should be set to “Disabled” on the Domain Controller Group Policy, to allow Outlook to anonymously query the global catalog service.System AdministratorInformation Assurance OfficerPRNK-1, ECSC-1
Checks: C-33086r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Do not allow anonymous enumeration of SAM accounts” is not set to “Enabled”, then this is a finding. If the value for “Network access: Do not allow anonymous enumeration of SAM accounts and shares” is not set to “Enabled”, then this is a finding. The policies referenced configure the following registry values. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: RestrictAnonymousSAM (Sam accounts) And Value Name: RestrictAnonymous (Sam accounts and shares) Value Type: REG_DWORD Value: 1 Note: In domains supporting Exchange 2003 servers and versions of Outlook earlier than Outlook 2003, the setting “Network access: Do not allow anonymous enumeration of SAM accounts and shares” should be set to “Disabled” on the Domain Controller Group Policy, to allow Outlook to anonymously query the global catalog service. Documentable Explanation: If the required settings cannot be used, in order to allow for proper operation in a mixed Windows environment, then this should be documented with the IAO. Exceptions to support the Exchange 2003 server and Outlook 2003 issue should also be documented with the IAO.

Fix: F-28805r1_fix

Configure the policy values for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Do not allow anonymous enumeration of SAM accounts” and “Network access: Do not allow anonymous enumeration of SAM accounts and shares” to “Enabled".

b
Anonymous access to the event logs is not restricted.
AU-9 - Medium - CCI-000162 - V-1095 - SV-29635r1_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
3.021
Vuln IDs
  • V-1095
Rule IDs
  • SV-29635r1_rule
By default, the Windows event logs may be viewed over the network by an anonymous user. This method of access over the network is communicating through the Server service which has SYSTEM access to the actual log files.HKSystem AdministratorECTP-1
Checks: C-72r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Event Logs -> Settings for Event Logs. If the value for “Prevent local guests group from accessing application log” is not set to “Enabled”, then this is a finding. If the value for “Prevent local guests group from accessing security log” is not set to “Enabled”, then this is a finding. If the value for “Prevent local guests group from accessing system log” is not set to “Enabled”, then this is a finding.

Fix: F-84r1_fix

Configure the system to prevent guest access to the Event logs.

b
Number of allowed bad-logon attempts does not meet minimum requirements.
AC-7 - Medium - CCI-000044 - V-1097 - SV-28985r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
4.002
Vuln IDs
  • V-1097
Rule IDs
  • SV-28985r1_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts should be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.HKSystem AdministratorECLO-1, ECLO-2
Checks: C-3200r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Account Lockout Policy. If the “Account lockout threshold” is "0" or more than three attempts, then this is a finding.

Fix: F-6569r1_fix

Configure the system to lock out an account after three invalid logon attempts.

b
Time before bad-logon counter is reset does not meet minimum requirements.
AC-7 - Medium - CCI-000044 - V-1098 - SV-29637r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
4.003
Vuln IDs
  • V-1098
Rule IDs
  • SV-29637r1_rule
This parameter specifies the amount of time that must pass between two successive login attempts to ensure that a lockout will occur. The smaller this value is, the less effective the account lockout feature will be in protecting the local system.HKSystem AdministratorECLO-2, ECLO-1
Checks: C-3203r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Account Lockout Policy. If the “Reset account lockout counter after” value is less than 60 minutes, then this is a finding.

Fix: F-6570r1_fix

Configure the system to have the lockout counter reset itself after a minimum of 60 minutes.

b
Lockout duration does not meet minimum requirements.
AC-7 - Medium - CCI-002238 - V-1099 - SV-29641r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-002238
Version
4.004
Vuln IDs
  • V-1099
Rule IDs
  • SV-29641r1_rule
This parameter specifies the amount of time that must pass before a locked-out account is automatically unlocked by the system.HKSystem AdministratorECLO-1, ECLO-2
Checks: C-3205r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Account Lockout Policy. If the “Account lockout duration” is not set to "0", requiring and administrator to unlock the account, then this is a finding.

Fix: F-6571r1_fix

Configure the system so that the bad logon lockout duration conforms to DoD requirements.

c
Unauthorized users are granted right to Act as part of the operating system.
AC-6 - High - CCI-002235 - V-1102 - SV-28989r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
4.009
Vuln IDs
  • V-1102
Rule IDs
  • SV-28989r1_rule
This is a Category 1 finding because users and user groups that are assigned this right can bypass all security protective mechanisms that apply to all users, including administrators. Accounts with this right should have passwords with the maximum length and be kept in a locked container accessible only by the IAO and his designated backup. Some applications require this right to function. Any exception needs to be documented with the IAO.trueRemoving application accounts from this right may cause the applications to stop functioning.System AdministratorInformation Assurance OfficerECLP-1
Checks: C-378r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> User Rights Assignment. If any user accounts, or groups (to include administrators),are granted the right "Act as part of the operating system", then this is a finding. Documentable Explanation: Some applications require this right to function. Any exception needs to be documented with the IAO. Acceptable forms of documentation include vendor published documents and application owner confirmation.

Fix: F-5745r1_fix

Configure the system to prevent unauthorized users to "Act as part of the operating system".

b
User rights assignments must meet minimum requirements.
CM-6 - Medium - CCI-000366 - V-1103 - SV-18398r3_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
4.010-DC
Vuln IDs
  • V-1103
Rule IDs
  • SV-18398r3_rule
Inappropriate granting of user and advanced user rights can provide system, administrative, and other high level capabilities not required by the normal user.trueArbitrarily removing application accounts from certain User Rights may cause the applications to cease functioning.System AdministratorInformation Assurance OfficerECLP-1
Checks: C-52091r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> User Rights Assignment. Compare the User Rights to the following list. If any groups or accounts are given rights that are not authorized below, this is a finding. Access this computer from the network - Administrators, Authenticated Users, Enterprise Domain Controllers Act as part of the operating system - See separate vulnerability V-1102 Add workstations to domain - Administrators Adjust memory quotas for a process - Administrators, Local Service, Network Service Allow log on locally - Administrators, Backup Operators Allow log on through Terminal Services - (None) Backup files and directories - Administrators, Backup Operators Bypass traverse checking - Authenticated Users Change the system time - Administrators, Local Service Create a pagefile - Administrators Create a token object - (None) Create global objects - Administrators, Service Create permanent shared objects - (None) Debug programs - See separate vulnerability V-18010 Deny access to this computer from the network - See separate vulnerability V-1155 Deny log on as a batch job - See separate vulnerability V-26483 Deny log on as a service - See separate vulnerability V-26484 Deny log on locally - See separate vulnerability V-26485 Deny log on through Terminal Services - See separate vulnerability V-26486 Enable computer and user accounts to be trusted for delegation - Administrators Force shutdown from a remote system - Administrators Generate security audits - Local Service, Network Service Impersonate a client after authentication - Administrators, Service Increase scheduling priority - Administrators Load and unload device drivers - Administrators Lock pages in memory - (None) Log on as a batch job - (None) Log on as a service - Network Service Manage auditing and security log - "Auditor’s" Group (Exchange Enterprise Servers Group on Domain Controllers and Exchange Servers) Modify firmware environment values - Administrators Perform volume maintenance tasks - Administrators Profile single process - Administrators Profile system performance - Administrators Remove computer from docking station - Administrators Replace a process level token - Local Service, Network Service Restore files and directories - Administrators, Backup Operators Shut down the system - Administrators Synchronize directory service data - See separate vulnerability V-12780 Take ownership of files or other objects - Administrators Documentable Explanation: Some applications require one or more of these rights to function. Any exception needs to be documented with the IAO. Acceptable forms of documentation include vendor published documents and application owner confirmation.

Fix: F-53977r1_fix

Configure User Rights as listed below to prevent groups or accounts from having unauthorized rights. Access this computer from the network - Administrators, Authenticated Users, Enterprise Domain Controllers Act as part of the operating system - See separate vulnerability V-1102 Add workstations to domain - Administrators Adjust memory quotas for a process - Administrators, Local Service, Network Service Allow log on locally - Administrators, Backup Operators Allow log on through Terminal Services - (None) Backup files and directories - Administrators, Backup Operators Bypass traverse checking - Authenticated Users Change the system time - Administrators, Local Service Create a pagefile - Administrators Create a token object - (None) Create global objects - Administrators, Service Create permanent shared objects - (None) Debug programs - See separate vulnerability V-18010 Deny access to this computer from the network - See separate vulnerability V-1155 Deny log on as a batch job - See separate vulnerability V-26483 Deny log on as a service - See separate vulnerability V-26484 Deny log on locally - See separate vulnerability V-26485 Deny log on through Terminal Services - See separate vulnerability V-26486 Enable computer and user accounts to be trusted for delegation - Administrators Force shutdown from a remote system - Administrators Generate security audits - Local Service, Network Service Impersonate a client after authentication - Administrators, Service Increase scheduling priority - Administrators Load and unload device drivers - Administrators Lock pages in memory - (None) Log on as a batch job - (None) Log on as a service - Network Service Manage auditing and security log - "Auditor’s" Group (Exchange Enterprise Servers Group on Domain Controllers and Exchange Servers) Modify firmware environment values - Administrators Perform volume maintenance tasks - Administrators Profile single process - Administrators Profile system performance - Administrators Remove computer from docking station - Administrators Replace a process level token - Local Service, Network Service Restore files and directories - Administrators, Backup Operators Shut down the system - Administrators Synchronize directory service data - See separate vulnerability V-12780 Take ownership of files or other objects - Administrators Document any exceptions with the IAO.

b
Maximum password age does not meet minimum requirements.
IA-5 - Medium - CCI-000199 - V-1104 - SV-29645r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
4.011
Vuln IDs
  • V-1104
Rule IDs
  • SV-29645r1_rule
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Further, scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.HKSystem AdministratorIAIA-2, IAIA-1
Checks: C-3221r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for the “Maximum password age” is greater than 60 days, then this is a finding. If the value is set to 0 (never expires), then this is a finding.

Fix: F-6573r1_fix

Configure the Maximum Password Age so that it is not "0" and doesn't exceed 60 days.

b
Minimum password age does not meet minimum requirements.
IA-5 - Medium - CCI-000198 - V-1105 - SV-28993r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000198
Version
4.012
Vuln IDs
  • V-1105
Rule IDs
  • SV-28993r1_rule
Permitting passwords to be changed in immediate succession within the same day, allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.HKSystem AdministratorIAIA-1, IAIA-2
Checks: C-3223r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for the “Minimum password age” is less than one day, then this is a finding.

Fix: F-6574r1_fix

Configure the Minimum Password Age so that it is a minimum of "1".

b
Password uniqueness does not meet minimum requirements.
IA-5 - Medium - CCI-000200 - V-1107 - SV-29650r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000200
Version
4.014
Vuln IDs
  • V-1107
Rule IDs
  • SV-29650r1_rule
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change a password to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes.HKSystem AdministratorIAIA-1, IAIA-2
Checks: C-3227r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for “Enforce password history” is less than 24 passwords, then this is a finding.

Fix: F-6576r1_fix

Configure the system to remember a minimum of "24" used passwords.

a
User account is dormant.
IA-4 - Low - CCI-000795 - V-1112 - SV-29480r1_rule
RMF Control
IA-4
Severity
Low
CCI
CCI-000795
Version
4.019
Vuln IDs
  • V-1112
Rule IDs
  • SV-29480r1_rule
Outdated or unused accounts, provide penetration points that may go undetected.The reviewer should review the list with the SA to determine the finding validity for each account reported.trueSystem AdministratorIAAC-1
Checks: C-393r1_chk

Using the DUMPSEC utility: Select “Dump Users as Table” from the “Report” menu. Select the available fields in the following sequence, and click on the “Add” button for each entry: UserName SID PswdRequired PswdExpires PswdLastSetTime LastLogonTime AcctDisabled Groups If any enabled accounts have not been logged into within the past 35 days, then this is a finding. This can be ascertained by examining the time in the “LastLogonTime” column. The following accounts are exempt from this check: The built-in administrator account The built-in guest account Application accounts The “IUSR”-guest account (used with IIS or Peer Web Services) Accounts that are less than 35 days old Disabled accounts Note: The reviewer should review the list with the SA to determine the finding validity for each account reported. Note: The following command can be used on Windows 2003/2008 Active Directory if DumpSec cannot be run: Open a Command Prompt Enter “Dsquery user -limit 0 -inactive 5 -o rdn” (This command will only work if the domain is at least at a Windows Server 2003 functional level, not Windows 2000 Native). A list of user accounts that have been inactive for 5 weeks will be displayed. Disabled Accounts can be determined by using the following: Enter “Dsquery user -limit 0 -disabled -o rdn”. Documentable Explanation: Dormant accounts that have been reviewed and deemed to be required should be documented with the IAO.

Fix: F-5758r1_fix

Regularly review accounts to determine if they are still active. Accounts that have not been used in the last 35 days should either be removed or disabled.

b
The built-in guest account is not disabled.
IA-8 - Medium - CCI-000804 - V-1113 - SV-29655r1_rule
RMF Control
IA-8
Severity
Medium
CCI
CCI-000804
Version
4.020
Vuln IDs
  • V-1113
Rule IDs
  • SV-29655r1_rule
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned. This account is a member of the Everyone user group and has all the rights and permissions associated with that group, which could subsequently provide access to system resources to anonymous users.System AdministratorIAAC-1
Checks: C-394r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Accounts: Guest account status” is not set to ” Disabled”, then this is a finding.

Fix: F-5759r1_fix

Configure the system to disable the built-in guest Account.

b
The built-in guest account has not been renamed.
CM-6 - Medium - CCI-000366 - V-1114 - SV-29483r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
4.021
Vuln IDs
  • V-1114
Rule IDs
  • SV-29483r1_rule
A system faces an increased vulnerability threat if the built-in guest account is not renamed or disabled. The built-in guest account is a known user account on all Windows systems, and as initially installed, does not require a password. This can allow access to system resources by unauthorized users. This account is a member of the group Everyone and has all the rights and permissions associated with that group and could provide access to system resources to unauthorized users.System AdministratorIAAC-1
Checks: C-403r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Accounts: Rename guest account” is not set to a value other than “Guest”, then this is a finding.

Fix: F-5761r1_fix

Configure the system to rename the built-in guest account

b
The built-in administrator account has not been renamed.
CM-6 - Medium - CCI-000366 - V-1115 - SV-28996r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
4.022
Vuln IDs
  • V-1115
Rule IDs
  • SV-28996r1_rule
The built-in administrator account is a well known account. Renaming the account to an unidentified name improves the protection of this account and the system.System AdministratorIAAC-1
Checks: C-411r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Accounts: Rename administrator account” is not set to a value other than “Administrator”, then this is a finding.

Fix: F-5762r1_fix

Configure the system to rename the built-in administrator account.

b
Security events are not properly preserved.
AU-9 - Medium - CCI-000164 - V-1117 - SV-29765r2_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000164
Version
5.001
Vuln IDs
  • V-1117
Rule IDs
  • SV-29765r2_rule
DOD policy requires that a security audit log be maintained and that events in the log not be automatically overwritten. Required audit data is lost if event logs are configured to overwrite the previously recorded events when an event log has reached its maximum size. Keep sufficient audit information available for supporting the investigation of suspicious events.trueSystem AdministratorECRR-1
Checks: C-505r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Event Log -> Settings for Event logs. If any of the following conditions are true, then this is a finding: For all Server Event logs: if the value for “Retention method for application, security and system logs is not set to “Do not overwrite events (clear log manually)”, then this is a finding. Documentable Explanation: If the machine is configured to write an event log directly to an audit server, the “Retention method for log” for that log does not have to conform to the requirements above. If an alternative auditing methodology is being used to collect and safeguard audit data (e.g. Audit Server), then this check is “Not Applicable”. Document this with the IAO.

Fix: F-5805r1_fix

Configure the system to properly preserve Event Log information.

b
Event log sizes do not meet minimum requirements.
AU-4 - Medium - CCI-001849 - V-1118 - SV-29487r2_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
5.002
Vuln IDs
  • V-1118
Rule IDs
  • SV-29487r2_rule
Inadequate log size will cause the log to fill up quickly and require frequent clearing by administrative personnel.trueMicrosoft recommends that the combined size of all the event logs (including DNS logs, Directory Services logs, and Replication logs on Servers or Domain Controllers) should not exceed 300 megabytes. Exceeding the recommended value can impact performance.System AdministratorInformation Assurance OfficerECRR-1
Checks: C-509r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Event Log -> Settings for Event Logs. If the value for “Maximum application log size” is not set to a minimum of “16384 kilobytes”, then this is a finding. If the value for “Maximum security log size” is not set to a minimum of “81920 kilobytes”, then this is a finding. If the value for “Maximum system log size” is not set to a minimum of “16384 kilobytes”, then this is a finding. Documentable Explanation: If the machine is configured to write an event log directly to an audit server, the “Maximum log size” for that log does not have to conform to the requirements above. This should be documented with the IAO. Note: Microsoft recommends that the combined size of all the event logs (including DNS logs, Directory Services logs, and Replication logs on Servers or Domain Controllers) should not exceed 300 megabytes. Exceeding the recommended value can impact performance.

Fix: F-5808r1_fix

Configure the system to have the required minimum Event log sizes.

b
Booting into alternate operating systems is permitted.
CM-6 - Medium - CCI-000366 - V-1119 - SV-29662r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.003
Vuln IDs
  • V-1119
Rule IDs
  • SV-29662r1_rule
Allowing other operating systems to run on a secure system, can allow users to circumvent security. If more than one operating system is installed on a computer, each must be configured to be compliant with STIG guidance.Review each alternate OS boot option with the SA.The system is not configured to prevent booting into non-compliant alternate operating systems.System AdministratorECSC-1
Checks: C-513r1_chk

Open the Control Panel Double-click on the “System” applet. Click on the “Advanced” tab. Click the Startup and Recovery “Settings” button. If the drop-down listbox in System Startup shows any operating system other than the current Windows OS, this may be a finding. If all additional operating systems are STIG compliant, then this is not a finding.

Fix: F-5811r1_fix

Configure the system to prevent running non-compliant alternate operating systems.

b
Installed FTP server is configured to allow prohibited logins.
CM-6 - Medium - CCI-000366 - V-1120 - SV-29491r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.004
Vuln IDs
  • V-1120
Rule IDs
  • SV-29491r1_rule
The FTP (File Transfer Protocol) service allows remote users to access shared files and directories. Allowing anonymous FTP makes user auditing difficult. Using accounts that have administrator privileges to log on to FTP risks that the user id and password will be captured on the network, and give administrator access to an unauthorized user.If accounts with administrator privileges are used to access FTP, then this becomes a Category I finding.System AdministratorECSC-1
Checks: C-515r1_chk

In the “Command Prompt” window, enter the following command, and attempt to logon as the user “anonymous:” C:\>ftp 127.0.0.1 (Connected to ftru014538.ncr.disa.mil. 220 ftru014538 Microsoft FTP Service (Version 2.0).) User: anonymous (331 Anonymous access allowed, send identity (e-mail name) as password.) Password: password (230 Anonymous user logged in.) ftp> If the command response indicates that an anonymous FTP login was permitted, then this is a finding. Severity Override: If accounts with administrator privileges are used to access FTP, then this becomes a Category I finding.

Fix: F-5813r1_fix

Configure the system to prevent an installed FTP service from allowing prohibited logons.

c
Installed FTP server is configured to allow access to the system drive.
CM-6 - High - CCI-000366 - V-1121 - SV-29495r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
5.005
Vuln IDs
  • V-1121
Rule IDs
  • SV-29495r1_rule
This is a Category 1 finding because the FTP service allows remote users to access shared files and directories which could provide access to system resources and compromise the system, especially if the user can gain access to the root directory of the boot drive.System AdministratorECCD-2, ECCD-1
Checks: C-516r1_chk

In the “Command Prompt” window, enter the following command, log on using an authenticated FTP account, and attempt to access the root of the boot drive: X:\>ftp 127.0.0.1 (Connected to ftru065103.ncr.disa.mil. 220 ftru065103 Microsoft FTP Service (Version 2.0).) User: ftpuser (331 Password required for ftpuser.) Password: password (230 User ftpuser logged in.) ftp> dir / If the FTP session indicates access to operating system files like “PAGEFILE.SYS” or “NTLDR,” then this is a finding.

Fix: F-5814r1_fix

Configure the system to prevent an FTP Service from allowing access to the system drive.

b
The system configuration is not set with a password-protected screen saver.
AC-11 - Medium - CCI-000056 - V-1122 - SV-29499r1_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000056
Version
5.006
Vuln IDs
  • V-1122
Rule IDs
  • SV-29499r1_rule
The system should be locked when unattended. Unattended systems are susceptible to unauthorized use. The screen saver should be set at a maximum of 15 minutes and password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.trueSystem AdministratorInformation Assurance OfficerPESL-1
Checks: C-518r1_chk

If the any of the registry values don’t exist or are not configured as follows, then this is a finding: Registry Hive: HKEY_CURRENT_USER Subkey: \Software\Policies\Microsoft\Windows\Control Panel\Desktop\ Value Name: ScreenSaveActive Type: REG_SZ Value: 1 Value Name: ScreenSaverIsSecure Type: REG_SZ Value: 1 Value Name: ScreenSaveTimeOut Type: REG_SZ Value: 900 (or less) Documentable Explanation: Terminal servers and applications requiring continuous, real-time screen display (i.e., network management products) require the following and need to be documented with the IAO. -The logon session does not have administrator rights. -The display station (i.e., keyboard, monitor, etc.) is located in a controlled access area.

Fix: F-5816r1_fix

Configure The policy values for User Configuration -> Administrative Templates -> Control Panel -> Display as follows: “Screen Saver” will be set to “Enabled” (“Activate screen saver” on Windows 2000) “Password protect the screen saver” will be set to “Enabled” “Screen Saver timeout” will be set to “Enabled: 900 seconds” (or less)

a
The Recycle Bin on a Server is not configured to delete files.
CM-6 - Low - CCI-000366 - V-1126 - SV-1126r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.051
Vuln IDs
  • V-1126
Rule IDs
  • SV-1126r2_rule
The Recycle Bin saves a copy of a file when it is deleted through Windows Explorer. This poses a security risk. A user may delete a sensitive file, yet still leave a copy of that file in the Recycle Bin.HKSystem AdministratorECSC-1
Checks: C-27270r1_chk

If the following registry value doesn’t exist or is not configured as specified this is a finding: Registry Hive: HKEY_CURRENT_USER Subkey: \Software\Microsoft\Windows\CurrentVersion\Policies\Explorer Value Name: NoRecycleFiles Type: REG_DWORD Value: 1 If this is configured in the Recycle Bin Properties instead of through a policy verify the following: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket Value Name: NukeOnDelete Data Type: REG_DWORD Value Data: 1

Fix: F-23312r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Windows Explorer “Do not move deleted files to the Recycle Bin” to “Enabled”. Or Select “Do not move files to the Recycle Bin. Remove files immediately when deleted.” in the Recycle Bin Properties.

c
Only administrators responsible for the system must have Administrator rights on the system.
AC-6 - High - CCI-002235 - V-1127 - SV-47873r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
4.027-DC
Vuln IDs
  • V-1127
Rule IDs
  • SV-47873r1_rule
An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account to bypass or modify required security restrictions on that machine and make it vulnerable to attack. System administrators must log on to systems only using accounts with the minimum level of authority necessary. Standard user accounts must not be members of the built-in Administrators group.trueSystem AdministratorInformation Assurance OfficerECPA-1
Checks: C-44746r1_chk

Review the local Administrators group. Only the appropriate administrator groups or accounts responsible for administration of the system may be members of the group. Standard user accounts must not be members of the local administrator group. If prohibited accounts are members of the local administrators group, this is a finding. The built-in Administrator account or other required administrative accounts would not be a finding.

Fix: F-41046r1_fix

Configure the system to include only administrator groups or accounts that are responsible for the system in the local Administrators group. Remove any standard user accounts.

a
Security configuration tools or equivalent processes must be used to configure and maintain platforms for security compliance.
CM-6 - Low - CCI-000366 - V-1128 - SV-29667r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
1.016
Vuln IDs
  • V-1128
Rule IDs
  • SV-29667r2_rule
Security configuration tools such as Group Policies and Security Templates allow system administrators to consolidate security-related system settings into a single configuration file. These settings can then be applied consistently to any number of Windows systems.System AdministratorECSC-1
Checks: C-51981r2_chk

Verify security configuration tools or equivalent processes are being used to configure Windows systems to meet security requirements. If security configuration tools or equivalent processes are not used, this is a finding. Security configuration tools that are integrated into Windows, such as Group Policies and Security Templates, may be used to configure platforms for security compliance. If an alternate method is used to configure a system (e.g., manually using the DISA Windows Security STIGs, etc.) and the same configured result is achieved, this is acceptable.

Fix: F-53863r1_fix

Implement a process using security configuration tools or the equivalent to configure Windows systems to meet security requirements.

b
ACLs for system files and directories do not conform to minimum requirements.
AC-3 - Medium - CCI-002165 - V-1130 - SV-29506r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-002165
Version
2.006
Vuln IDs
  • V-1130
Rule IDs
  • SV-29506r1_rule
Failure to properly configure ACL file and directory permissions, allows the possibility of unauthorized and anonymous modification to the operating system and installed applications.If a manual check of a questionable ACL setting shows that it has been set to meet or is more restrictive than minimum requirements, then it will not be counted as a finding.trueSystem AdministratorECCD-2, ECCD-1
Checks: C-32952r1_chk

The default ACL settings are adequate when the Security Option “Network access: Let everyone permissions apply to anonymous users” is set to “Disabled” (V-3377) and Power User Group Membership is restricted. If the default ACLs are maintained, the referenced option is set to “Disabled” and Powers Users are restricted, this check should normally be marked “Not a Finding” Specific System files are an exception to this. The following will be configured with only Administrators and System having Full Permissions: \regedit.exe \System32\arp.exe \System32\at.exe \System32\attrib.exe \System32\cacls.exe \System32\debug.exe \System32\edlin.exe \System32\eventcreate.exe \System32\eventtriggers.exe \System32\ftp.exe \System32\nbtstat.exe \System32\net.exe \System32\net1.exe \System32\netsh.exe \System32\netstat.exe \System32\nslookup.exe \System32\ntbackup.exe \System32\rcp.exe \System32\reg.exe \System32\regedt32.exe \System32\regini.exe \System32\regsvr32.exe \System32\rexec.exe \System32\route.exe \System32\rsh.exe \System32\sc.exe \System32\secedit.exe \System32\subst.exe \System32\Systeminfo.exe \System32\telnet.exe \System32\tftp.exe \System32\tlntsvr.exe Documentable Explanation: If an ACL setting prevents a site’s applications from performing properly, the site can modify that specific setting. Settings should only be changed to the minimum necessary for the application to function. Each exception to the recommended settings should be documented and kept on file by the IAO.

Fix: F-29103r1_fix

Maintain the default file ACLs, configure the Security Option: “Network access: Let everyone permissions apply to anonymous users” to “Disabled” (V-3377) and restrict the Power Users group to include no members. Configure permissions on the following so that only Administrators and System have Full (no other permissions assigned to other accounts or groups). \regedit.exe \System32\arp.exe \System32\at.exe \System32\attrib.exe \System32\cacls.exe \System32\debug.exe \System32\edlin.exe \System32\eventcreate.exe \System32\eventtriggers.exe \System32\ftp.exe \System32\nbtstat.exe \System32\net.exe \System32\net1.exe \System32\netsh.exe \System32\netstat.exe \System32\nslookup.exe \System32\ntbackup.exe \System32\rcp.exe \System32\reg.exe \System32\regedt32.exe \System32\regini.exe \System32\regsvr32.exe \System32\rexec.exe \System32\route.exe \System32\rsh.exe \System32\sc.exe \System32\secedit.exe \System32\subst.exe \System32\Systeminfo.exe \System32\telnet.exe \System32\tftp.exe \System32\tlntsvr.exe

b
A password filter that enforces DoD requirements is not installed.
IA-5 - Medium - CCI-000192 - V-1131 - SV-29672r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000192
Version
2.009
Vuln IDs
  • V-1131
Rule IDs
  • SV-29672r1_rule
Password complexity software (e.g., Password Policy Enforcer) enforces a minimum mix of character types and potentially other options to create strong passwords. The following policy will be implemented: Passwords must contain a case-sensitive character mix of upper case letters, lower case letters, numbers, and special characters, including at least one of each. Sites are responsible for installing password complexity software that complies with current DoD requirements. If no password filter is used, and the security option for “Password must meet complexity requirements” (V0001150/3.028) is set to “Enabled”, then this finding can be downgraded to a Category III, since a less strict complexity algorithm is used. System AdministratorIAIA-1
Checks: C-32861r1_chk

Verify that password complexity software is installed and enforced that requires a case-sensitive character mix of upper case letters, lower case letters, numbers, and special characters, including at least one of each. The enpasflt password filter is available as an option on the IASE website in the Windows Support Files area (PKI required - http://iase.disa.mil/stigs/os/windows/support_files.html). It should be tested for the particular environment. If it does not function properly or causes issues, the site will be responsible for obtaining other password complexity software to meet the requirements. The current available versions are: Name – Modified Date EnPasFltV2x86.dll – 3/21/2011 EnPasFltV2x64.dll – 3/21/2011 If another product, such as PPE, or a different version of enpasflt is used, the SA should demonstrate that it is configured to enforce the DoD requirements. For the enpasflt password filter to function properly, verify the following: -The appropriate version of the file will be located in %systemroot%\system32. -The Date Modified should be 3/21/2011. -The “Notification Packages” value under registry key “HKLM\System\CurrentControlSet\Control\LSA” must include the file name (e.g., “EnPasFltV2x86”). Severity Override: If no password filter is used, and the security option for “Password must meet complexity requirements” (V0001150/3.028) is set to “Enabled”, then this finding can be downgraded to a Category III, since a less strict complexity algorithm is used. Note: If a password filter is not used, the site is still responsible for requiring full compliance with DoD policy, even though the password complexity setting does not enforce the 4-character type rule.

Fix: F-56r1_fix

Install password complexity software and configure it to enforce the required DoD standards of a case sensitive character mix of upper case letters, lower case letters, numbers, and special characters, including at least one of each. If the enpasflt password filter is used: - Copy the appropriate version to %systemroot%\system32. - Add the file name (e.g., “EnPasFltV2x86”) to the “Notification Packages” value under registry key “HKLM\System\CurrentControlSet\Control\LSA”. -Restart the system.

a
Printer share permissions are not configured as recommended.
AC-3 - Low - CCI-000213 - V-1135 - SV-29509r1_rule
RMF Control
AC-3
Severity
Low
CCI
CCI-000213
Version
3.027
Vuln IDs
  • V-1135
Rule IDs
  • SV-29509r1_rule
Improperly configured share permissions on printers can permit the addition of unauthorized print devices on the network. Windows shares are a means by which files, folders, printers, and other resources can be published for network users to remotely access. Regular users cannot create shares on their local machines; only Administrators and Power Users have that ability.System AdministratorECCD-1
Checks: C-80r1_chk

Run Windows Explorer. Select the Control Panel folder. (NT=Printers folder) Select the Printers folder. If there are no locally attached printers, then mark this as “Not Applicable.” Perform this check for each locally attached printer: Right click on a locally-attached printer. Select Sharing from the drop-down menu. Perform this check on each printer that has the “Shared” radio-button selected: Select the Security tab The following table lists the recommended printer share security settings (Allow Permission): Users - Print Administrators, System, Creator Owner - Print, Manage Printers, Manage Documents If there are no shared local printers, then mark this as “Not Applicable.” If the share permissions do not match the above table, then this is a finding.

Fix: F-88r1_fix

Configure the permissions on locally shared printers to meet the minimum requirements.

a
Users must be forcibly disconnected when their logon hours expire.
SC-10 - Low - CCI-001133 - V-1136 - SV-28999r2_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
4.006
Vuln IDs
  • V-1136
Rule IDs
  • SV-28999r2_rule
Users must not be permitted to remain logged on to the network after they have exceeded their permitted logon hours. In many cases, this indicates that a user forgot to log off before leaving for the day. However, it may also indicate that a user is attempting unauthorized access at a time when the system may be less closely monitored. Forcibly disconnecting users when logon hours expire protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.HKSystem AdministratorECSC-1
Checks: C-52005r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "Microsoft Network Server: Disconnect Clients When Logon Hours Expire" is not set to "Enabled", this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: EnableForcedLogoff Value Type: REG_DWORD Value: 1

Fix: F-53891r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft Network Server: Disconnect Clients When Logon Hours Expire" to "Enabled".

b
An Auditors group has not been created to restrict access to the Windows Event Logs.
AU-12 - Medium - CCI-000171 - V-1137 - SV-29777r1_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000171
Version
1.010
Vuln IDs
  • V-1137
Rule IDs
  • SV-29777r1_rule
The Security Event Log contains information on security exceptions that occur on the system. This data is critical for identifying security vulnerabilities and intrusions. The Application and System logs can also contain information that is critical in assessing security events. Therefore, these logs must be protected from unauthorized access and modification. An Auditors group will be used to restrict access to auditing through the User Right “Manage auditing and security log” (V-1103) and for assigning permissions to event logs (V-1077). Only individuals who have auditing responsibilities (IAO, IAM, auditors, etc.) should be members of this group. The individual System Administrators responsible for maintaining this system can also be members of this group.System AdministratorInformation Assurance OfficerECTP-1
Checks: C-7886r1_chk

Interview the SA to determine if an Auditors group for controlling the Windows Event Logs has been created. NOTE: The administrator(s) responsible for the installation and maintenance of the individual system(s) must be a member(s) of the Auditors group. This will permit the responsible administrator to enable and configure system auditing, and perform maintenance functions related to the logs. Administrators who are not responsible for maintenance on an individual system will not be included in the Auditors group.

Fix: F-34r1_fix

Create an Auditors group for controlling the Windows Event Logs and assign the necessary rights and access controls.

b
The option to prevent the password in dial-up networking from being saved is not enabled.
IA-11 - Medium - CCI-002038 - V-1139 - SV-29592r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
3.024
Vuln IDs
  • V-1139
Rule IDs
  • SV-29592r1_rule
The default Windows configuration enables the option to save the password used to gain access to a remote server using the dial-up networking feature. With this option enabled, an unauthorized user who gains access to a Windows machine would also have access to remote servers with which the machine uses dial-up networking to communicate. Disabling this option will introduce another layer of security and help limit the scope of any security compromise to the local machine.HKSystem AdministratorECSC-1
Checks: C-76r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (DisableSavePassword) Prevent the dial-up password from being saved (recommended)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\RasMan\Parameters\ Value Name: DisableSavePassword Value Type: REG_DWORD Value: 1

Fix: F-86r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (DisableSavePassword) Prevent the dial-up password from being saved (recommended)” to “Enabled”.

c
Users with Administrative privilege are not documented or do not have separate accounts for administrative duties and normal operational tasks.
CM-6 - High - CCI-000366 - V-1140 - SV-29678r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
1.006
Vuln IDs
  • V-1140
Rule IDs
  • SV-29678r2_rule
Using a privileged account to perform routine functions makes the computer vulnerable to attack by any virus or Trojan Horse inadvertently introduced during a session that has been granted full privileges. The rule of least privilege should always be enforced.Information Assurance OfficerECLP-1
Checks: C-7884r2_chk

Ask the System Administrator (SA) to show the necessary documentation that identifies the members of this privileged group. This check verifies each user with administrative privileges has been assigned a unique account, separate from the built-in “Administrator” account. This check also verifies the default “Administrator” account is not being used. Administrators should be properly trained before being permitted to perform administrator duties. The IAO will maintain a list of all users belonging to the Administrator’s group. If any of the following conditions are true, then this is a finding: •Each SA does not have a unique userid dedicated for administering the system. •Each SA does not have a separate account for normal user tasks. •The built-in administrator account is used to administer the system. •Administrators have not been properly trained. •The IAO does not maintain a list of users belonging to the Administrator’s group.

Fix: F-32r2_fix

Create the necessary documentation that identifies the members of this privileged group. Ensure each member has a separate account for user duties and one for his privileged duties and the other requirements outlined in the manual check are met.

b
Unencrypted password is sent to 3rd party SMB Server.
IA-5 - Medium - CCI-000197 - V-1141 - SV-29002r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000197
Version
3.034
Vuln IDs
  • V-1141
Rule IDs
  • SV-29002r1_rule
Some non-Microsoft SMB servers only support unencrypted (plain text) password authentication. Sending plain text passwords across the network, when authenticating to an SMB server, reduces the overall security of the environment. Check with the Vendor of the SMB server to see if there is a way to support encrypted password authentication.HKSystem AdministratorECCT-1, ECCT-2
Checks: C-90r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Client: Send unencrypted password to connect to third-party SMB servers” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: EnablePlainTextPassword Value Type: REG_DWORD Value: 0

Fix: F-93r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Client: Send unencrypted password to connect to third-party SMB servers” to “Disabled”.

c
Automatic logons must be disabled.
CM-6 - High - CCI-000366 - V-1145 - SV-29005r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
3.040
Vuln IDs
  • V-1145
Rule IDs
  • SV-29005r2_rule
Allowing a system to automatically log on when the machine is booted could give access to any unauthorized individual who restarts the computer. Automatic logon with administrator privileges would give full access to an unauthorized individual. If this setting was enabled at any point, a password may also be present in the registry, and must be removed.HKSystem AdministratorECSC-1
Checks: C-52013r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "MSS: (AutoAdminLogon) Enable Automatic Logon (not recommended)" is not set to "Disabled", this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: AutoAdminLogon Type: REG_SZ Value: 0 If DefaultPassword in the same registry path contains a value, this is also a finding.

Fix: F-53897r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (AutoAdminLogon) Enable Automatic Logon (not recommended)" to "Disabled". Ensure no passwords are stored in the "DefaultPassword" registry value noted below: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: DefaultPassword

a
The built-in Microsoft password filter is not enabled.
IA-5 - Low - CCI-000192 - V-1150 - SV-29683r1_rule
RMF Control
IA-5
Severity
Low
CCI
CCI-000192
Version
3.028
Vuln IDs
  • V-1150
Rule IDs
  • SV-29683r1_rule
The use of complex passwords increases their strength against guessing. This policy setting configures the system to verify that newly-created passwords conform to the Windows password complexity policy.System AdministratorIAIA-2, IAIA-1
Checks: C-32937r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for “Password must meet complexity requirements” is not set to "Enabled", then this is a finding. Note: If the site is using a password filter that requires this setting be set to “Disabled” for the filter code to be used, then this would not be considered a finding. If this setting does not affect the use of an external password filter, it will be enabled for fall-back purposes.

Fix: F-28809r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> “Password must meet complexity requirements” to "Enabled".

a
Print driver installation privilege is not restricted to administrators.
CM-11 - Low - CCI-001812 - V-1151 - SV-29008r1_rule
RMF Control
CM-11
Severity
Low
CCI
CCI-001812
Version
3.029
Vuln IDs
  • V-1151
Rule IDs
  • SV-29008r1_rule
By default, the print spooler allows any user to add and to delete printer drivers on the local system. This capability should be restricted to authorized personnel.trueSystem AdministratorInformation Assurance OfficerECLP-1
Checks: C-83r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Devices: Prevent users from installing printer drivers” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Print\Providers\LanMan Print Services\Servers Value Name: AddPrinterDrivers Value Type: REG_DWORD Value: 1 Documentable Explanation: If site circumstances require that users be able to install print drivers for locally attached printers (e.g. - Users that telecommute and attach a home printer), this exception can be documented with the site IAO.

Fix: F-83r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Devices: Prevent users from installing printer drivers” to “Enabled”.

c
Anonymous access to the Registry is not restricted.
AC-6 - High - CCI-002235 - V-1152 - SV-29593r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
3.030
Vuln IDs
  • V-1152
Rule IDs
  • SV-29593r1_rule
This is a Category I finding, because this vulnerability allows an anonymous individual read-access and write-access to some parts of the Registry. The permissions set for the Winreg subkey determine who can remotely connect to a registry. If this subkey does not exist, all users can remotely connect to the registry. To remotely connect to a registry, a user must have at least Read Access to the Winreg subkey on the target computer. The Everyone group, which is given permissions by the default installation, typically has at least enough access allowed to browse. Therefore, the capability for an anonymous user to access the Registry over the network must be prevented.trueSystem AdministratorInformation Assurance OfficerECCD-2, ECCD-1
Checks: C-9577r1_chk

Wiindows XP/2003/Vista/2008 - Using the Registry Editor, navigate to the following Key: MACHINE/System/CurrentControlSet/Control/SecurePipeServers/Winreg If the key does not exist, then this is a finding. If the permissions are not at least as restrictive as those below, then this is a finding. Administrators all Backup Operators read(QENR) Local Service read (Exchange Enterprise Servers group on Domain Controllers and Exchange server all Documentable Explanation: On DCs and Exchange Servers, if permissions are sub-delegated with the Exchange Management console, then additional accounts and groups may appear on the Winreg key. If this has been done then these should be documented with the site IAO and made available for any reviewer.

Fix: F-90r1_fix

Configure the system to prevent anonymous users from gaining access to the Registry.

c
The Send download LanMan compatible password option is not set to Send NTLMv2 response only\refuse LM.
CM-6 - High - CCI-000366 - V-1153 - SV-29011r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
3.031
Vuln IDs
  • V-1153
Rule IDs
  • SV-29011r1_rule
The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows. It is also used to authenticate logons to stand-alone computers that are running later versions.trueSetting this to the required setting may prevent authentication with older Operating Systems and break some applications.System AdministratorInformation Assurance OfficerIAIA-1, IAIA-2
Checks: C-86r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: LAN Manager authentication level” is not set to at least “Send NTLMv2 response only\refuse LM” (Level 4), then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: LmCompatibilityLevel Value Type: REG_DWORD Value: 4 (5 is also acceptable) Documentable Explanation: In a mixed Windows environment, if this setting needs to be loosened due to compatibility issues, then the reasons need to be documented with the IAO.

Fix: F-91r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: LAN Manager authentication level” to at least “Send NTLMv2 response only\refuse LM”.

b
Ctrl+Alt+Del security attention sequence is Disabled.
CM-6 - Medium - CCI-000366 - V-1154 - SV-29014r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.032
Vuln IDs
  • V-1154
Rule IDs
  • SV-29014r1_rule
Disabling the Ctrl+Alt+Del security attention sequence can compromise system security. Because only Windows responds to the Ctrl+Alt+Del security sequence, you can be assured that any passwords you enter following that sequence are sent only to Windows. If you eliminate the sequence requirement, malicious programs can request and receive your Windows password. Disabling this sequence also suppresses a custom logon banner.HKSystem AdministratorECSC-1
Checks: C-88r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive Logon: Do not require CTRL+ALT+DEL” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DisableCAD Value Type: REG_DWORD Value: 0

Fix: F-92r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive Logon: Do not require CTRL ALT DEL” to “Disabled”.

c
The Deny access to this computer from the network user right on domain controllers must be configured to prevent unauthenticated access.
AC-3 - High - CCI-000213 - V-1155 - SV-47870r1_rule
RMF Control
AC-3
Severity
High
CCI
CCI-000213
Version
WINUR-000017-DC
Vuln IDs
  • V-1155
Rule IDs
  • SV-47870r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny Access from the Network" right defines the accounts that are prevented from logging on from the network. Groups must be assigned this right to prevent unauthenticated access.trueSystem AdministratorInformation Assurance OfficerECLP-1
Checks: C-44724r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> User Rights Assignment. If the following accounts or groups are not defined for the "Deny access to this computer from the network" right, this is a finding: Guests Group Anonymous Logon Support_388945a0

Fix: F-41024r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny access to this computer from the network" to include the following. Guests Group Anonymous Logon Support_388945a0

b
The Smart Card removal option is set to take no action.
CM-6 - Medium - CCI-000366 - V-1157 - SV-25502r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.047
Vuln IDs
  • V-1157
Rule IDs
  • SV-25502r1_rule
Determines what should happen when the smart card for a logged-on user is removed from the smart card reader. The options are: - No Action - Lock Workstation - Force LogofftrueHKSystem AdministratorECSC-1
Checks: C-27008r1_chk

Servers - Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive logon: Smart card removal behavior” is not set to “Lock Workstation”, or “Force Logoff”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: SCRemoveOption Value Type: REG_SZ Value: 1 (Lock Workstation) or 2 (Force Logoff) Documentable Explanation: If configuring this on servers causes issues such as terminating users’ remote sessions and the site has a policy in place that any other sessions on the servers such as administrative console logons are manually locked or logged off when unattended or not in use, this would be acceptable. This will be documented with the IAO.

Fix: F-105r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive logon: Smart card removal behavior” to “Lock Workstation” or “Force Logoff”.

a
The Recovery Console SET command is enabled.
CM-6 - Low - CCI-000366 - V-1158 - SV-29018r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.048
Vuln IDs
  • V-1158
Rule IDs
  • SV-29018r1_rule
Enabling this option enables the Recovery Console SET command, which allows you to set Recovery Console environment variables. This permits floppy copy and access to all drives and folders.HKSystem AdministratorECCD-2, ECCD-1
Checks: C-32725r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Recovery Console: Allow floppy copy and access to all drives and folders” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole\ Value Name: SetCommand Value Type: REG_DWORD Value: 0

Fix: F-28812r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Recovery Console: Allow floppy copy and access to all drives and folders” to “Disabled”.

c
The Recovery Console option is set to permit automatic logon to the system.
CM-6 - High - CCI-000366 - V-1159 - SV-29022r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
3.049
Vuln IDs
  • V-1159
Rule IDs
  • SV-29022r1_rule
This is a Category 1 finding because if this option is set, the Recovery Console does not require you to provide a password and will automatically log on to the system, giving Administrator access to system files. By default, the Recovery Console requires you to provide the password for the Administrator account before accessing the system.HKSystem AdministratorECCD-2, ECCD-1
Checks: C-32726r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Recovery Console: Allow automatic administrative logon” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole\ Value Name: SecurityLevel Value Type: REG_DWORD Value: 0

Fix: F-28813r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Recovery Console: Allow automatic administrative logon” to “Disabled”.

a
The unsigned driver installation behavior is improperly set.
CM-6 - Low - CCI-000366 - V-1160 - SV-29686r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.050
Vuln IDs
  • V-1160
Rule IDs
  • SV-29686r1_rule
Determines what should happen when an attempt is made to install a device driver (by means of the Windows device installer) that has not been certified by the Windows Hardware Quality Lab (WHQL). The options are: - Silently succeed - Warn but allow installation - Do not allow installationtrueSystem AdministratorInformation Assurance OfficerDCSL-1
Checks: C-128r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Devices: Unsigned driver installation behavior” is not set to “Warn but allow installation” or “Do not allow installation”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Driver Signing\ Value Name: Policy Value Type: REG_BINARY Value: 1 (Warn but allow installation), 2 (Do not allow installation) Documentable Explanation: If the site is using a Software Update Server (SUS) server to distribute software updates, and the computer is configured to point at that server, then this can be set to "Silently succeed" to allow unattended installation of distributed updates. To determine if an SUS server is used, see if the following registry key value exists and is pointing to an organizational or DOD SUS URL: HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate\WUServer, Reg_SZ: http://…

Fix: F-109r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Devices: Unsigned driver installation behavior” to “Warn but allow installation” or “Do not allow installation”.

b
The Windows SMB server is not enabled to perform SMB packet signing when possible.
SC-8 - Medium - CCI-002418 - V-1162 - SV-29025r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.046
Vuln IDs
  • V-1162
Rule IDs
  • SV-29025r1_rule
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to perform SMB packet signing.HKSystem AdministratorECSC-1
Checks: C-121r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Server: Digitally sign communications (if client agrees)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: EnableSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-104r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Server: Digitally sign communications (if Client agrees)” to “Enabled”.

b
Outgoing secure channel traffic is not encrypted when possible.
SC-8 - Medium - CCI-002418 - V-1163 - SV-29513r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.043
Vuln IDs
  • V-1163
Rule IDs
  • SV-29513r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic should be encrypted.If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding. HKSystem AdministratorECCT-1, ECCT-2
Checks: C-114r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Digitally encrypt secure channel data (when possible)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SealSecureChannel Value Type: REG_DWORD Value: 1 Note: If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding.

Fix: F-101r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Digitally encrypt secure channel data (when possible)” to “Enabled”.

b
Outgoing secure channel traffic is not signed when possible.
SC-8 - Medium - CCI-002418 - V-1164 - SV-29516r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.042
Vuln IDs
  • V-1164
Rule IDs
  • SV-29516r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, all outgoing secure channel traffic should be signed.If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding.HKSystem AdministratorDCNR-1
Checks: C-112r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Digitally sign secure channel data (when possible)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SignSecureChannel Value Type: REG_DWORD Value: 1 Note: If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding.

Fix: F-100r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Digitally sign secure channel data (when possible)” to “Enabled”.

a
The computer account password is prevented from being reset.
CM-6 - Low - CCI-000366 - V-1165 - SV-29028r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.044
Vuln IDs
  • V-1165
Rule IDs
  • SV-29028r1_rule
As a part of Windows security, computer account passwords are changed automatically. Enabling this policy to disable automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. If this policy is disabled, a new password for the computer account will be generated every week.HKSystem AdministratorIAIA-1, IAIA-2
Checks: C-116r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Disable Machine Account Password Changes” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: DisablePasswordChange Value Type: REG_DWORD Value: 0

Fix: F-102r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Disable Machine Account Password Changes” to “Disabled”.

b
The Windows SMB client is not enabled to perform SMB packet signing when possible.
SC-8 - Medium - CCI-002418 - V-1166 - SV-29031r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.045
Vuln IDs
  • V-1166
Rule IDs
  • SV-29031r1_rule
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.HKSystem AdministratorECSC-1
Checks: C-4361r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Client: Digitally sign communications (if server agrees)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: EnableSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-103r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Client: Digitally sign communications (if server agrees)” to “Enabled”.

b
Members of the Backup Operators group must have separate accounts for backup duties and normal operational tasks.
CM-6 - Medium - CCI-000366 - V-1168 - SV-29520r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.007
Vuln IDs
  • V-1168
Rule IDs
  • SV-29520r2_rule
Backup Operators are able to read and write to any file in the system, regardless of the rights assigned to it. Backup and restore rights permit users to circumvent the file access restrictions present on NTFS disk drives for the purpose of backup and restore. Members of the Backup Operators group must have separate logon accounts for performing backup duties.trueInformation Assurance OfficerECLP-1
Checks: C-51789r1_chk

Review the Backup Operators group in Computer Management and/or Active Directory Users and Computers. If the group contains no accounts, this is not a finding. If the group does contain any accounts, this must be documented as specified below. Documentable Explanation: Any accounts that are members of the Backup Operators group must be documented with the IAO including application accounts. Each Backup Operator will have a separate user account for backing up the system and for performing normal user tasks.

Fix: F-53573r1_fix

Ensure that each member has separate accounts for user tasks and for backup operator functions. Create the necessary documentation that identifies the members of the Backup Operators group.

b
Ejection of removable NTFS media is not restricted to Administrators.
CM-6 - Medium - CCI-000366 - V-1171 - SV-29214r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.052
Vuln IDs
  • V-1171
Rule IDs
  • SV-29214r1_rule
Removable hard drives can be formatted and ejected by others who are not members of the Administrators Group, if they are not properly configured. Formatting and ejecting removable NTFS media should only be done by administrators.HKSystem AdministratorECLP-1
Checks: C-135r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Devices: Allowed to Format and Eject Removable Media” is not set to ” Administrators”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon Value Name: AllocateDASD Value Type: REG_SZ Value: 0

Fix: F-113r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Devices: Allowed to Format and Eject Removable Media” to “Administrators”.

a
Users are not warned in advance that their passwords will expire.
CM-6 - Low - CCI-000366 - V-1172 - SV-29218r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.054
Vuln IDs
  • V-1172
Rule IDs
  • SV-29218r1_rule
This setting configures the system to display a warning to users telling them how many days are left before their password expires. By giving the user advanced warning, the user has time to construct a sufficiently strong password.HKSystem AdministratorECSC-1
Checks: C-137r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive Logon: Prompt user to change password before expiration” is not set to “14" days or more, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: PasswordExpiryWarning Value Type: REG_DWORD Value: 14

Fix: F-114r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive Logon: Prompt user to change password before expiration” to “14” days or more.

a
The default permissions of Global system objects are not increased.
CM-6 - Low - CCI-000366 - V-1173 - SV-29221r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.055
Vuln IDs
  • V-1173
Rule IDs
  • SV-29221r1_rule
Windows system maintains a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing non-admin users to read shared objects, but not modify shared objects that they did not create.HKSystem AdministratorECSC-1
Checks: C-93r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System Objects: Strengthen default permissions of internal system objects (e.g. Symbolic links)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Session Manager\ Value Name: ProtectionMode Value Type: REG_DWORD Value: 1

Fix: F-28815r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System Objects: Strengthen default permissions of internal system objects (e.g. Symbolic links)” to “Enabled”.

a
Amount of idle time required before suspending a session is improperly set.
SC-10 - Low - CCI-001133 - V-1174 - SV-29224r1_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
4.028
Vuln IDs
  • V-1174
Rule IDs
  • SV-29224r1_rule
Administrators should use this setting to control when a computer disconnects an inactive SMB session. If client activity resumes, the session is automatically reestablished. This protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.HKSystem AdministratorECSC-1
Checks: C-427r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Server: Amount of idle time required before suspending a session” is not set to ”15" minutes or less, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: AutoDisconnect Value Type: REG_DWORD Value: 15

Fix: F-5774r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Server: Amount of idle time required before suspending a session” to ”15” minutes or less.

c
The access control permissions for the directory service site group policy must be configured to use the required access permissions.
AC-6 - High - CCI-002235 - V-2370 - SV-15602r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
DS00.0130_2003
Vuln IDs
  • V-2370
Rule IDs
  • SV-15602r2_rule
When directory service database objects do not have appropriate access control permissions, it may be possible for malicious users to create, read, update, or delete the objects and degrade or destroy the integrity of the data. When the directory service is used for identification, authentication, or authorization functions, a compromise of the database objects could lead to a compromise of all systems that rely on the directory service. For AD, the Group Policy and OU objects require special attention. In a distributed administration model (such as might be used with a help desk or other user support staff), Group Policy and OU objects are more likely to have access permissions changed from the secure defaults. If inappropriate access permissions are defined for Group Policy Objects, it could allow an intruder to change the security policy applied to all domain client computers (workstations and servers). If inappropriate access permissions are defined for OU objects, it could allow an intruder to add or delete users in the OU. This could result in unauthorized access to data or a denial of service to authorized users. The severity category for findings resulting from this check must be determined based on the directory object or attribute involved. If any object or attribute with improper permissions includes identification or authentication data (e.g., accounts, passwords, or password hash data) that is used by systems to determine access control, then the severity is category I. If any user object attribute with improper permissions includes data that is used by systems to determine access control, then the severity is category I. If other user object attributes have improper permissions, then the severity is category II. If there is no documentation to support authorized update access to user object attributes, then the severity is category III.System AdministratorECCD-1, ECAN-1, ECCD-2, ECLP-1
Checks: C-9329r1_chk

Verifying Group Policy Object Procedures - Site Policies: 1. Start the Active Directory Sites and Services console (“Start”, “Run…”, “dssite.msc”). 2. Select and expand the Sites item in the left pane. 3. For each AD site that is defined (building icon): a. Right-click the AD site and select the Properties item. b. On the site Properties window, select the Group Policy tab. c. For *each* Group Policy Object Link: d. Select the Group Policy Object Link item. e. Select the Properties button. f. On the site Group Policy Properties window, select the Security tab. g. Compare the ACL of each site Group Policy to the specifications for Group Policy Objects below. Group Policy Object Permissions: [Group Policy - e.g., Default Domain] :Administrators, SYSTEM :Full Control (F) :CREATOR OWNER :Full Control (F) :ENTERPRISE DOMAIN CONTROLLERS* :Read :Authenticated Users :Read, Apply Group Policy : [IAO-approved users \ user groups] : Read, Apply Group Policy 4. If the actual permissions for any AD site Group Policy object are not at least as restrictive as those above, then this is a finding. Supplemental Note: An AD instance may have no AD site Group Policies defined. 1. Groups containing authenticated users (such as the Authenticated Users group), other locally created user groups, and individual users may have the Read and Apply Group Policy permissions set to Allow or Deny. 2. The Anonymous Logon, Guests, or any group that contains those groups (in which users are not uniquely identified and authenticated) must not have any access permissions unless the group and justification is explicitly documented with the IAO. 3. Other access permissions that allow the objects to be updated are considered findings unless specifically documented by the IAO.

Fix: F-33288r1_fix

Configure the access control permissions for the directory service database objects using the required access permissions.

b
ACLs for disabled services do not conform to minimum standards.
CM-6 - Medium - CCI-000366 - V-2371 - SV-29523r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
2.014
Vuln IDs
  • V-2371
Rule IDs
  • SV-29523r1_rule
When configuring either the startup mode or access control list for a service, you must configure the other as well. When a service is explicitly disabled, its ACL should also be secured by changing the default ACL from Everyone Full Control to grant Administrators and SYSTEM Full Control and Interactive Read access.System AdministratorECCD-2, ECCD-1
Checks: C-9572r1_chk

Windows 2003/XP/Vista - Use the "Security Configuration and Analysis" snap-in to analyze the system. Expand the “Security Configuration and Analysis” object in the tree window. Expand the “System Services” object and select each applicable disabled Service. (Disabled Services can be identified using the Control Panel’s Services applet. Right click the Service and select Properties Select ‘View Security’ If the ACLs for applicable disabled Services do not restrict permissions to Administrators, ‘full Control’, System ‘full control’, and Interactive ‘Read’, then this is a finding. Note: These are the Windows default settings.

Fix: F-58r1_fix

Create a Custom Security Template using the Security Template MMC Snap-in to set the permissions as required for disabled services. Import the Custom Template into the Security Configuration and Analysis Snap-In and Select Configure Computer Now Or import the Custom Template in to a Group Policy for application. The administrator should have a thorough understanding of these tools before implementing settings with them.

b
Reversible password encryption is not disabled.
IA-5 - Medium - CCI-000196 - V-2372 - SV-2372r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000196
Version
3.057
Vuln IDs
  • V-2372
Rule IDs
  • SV-2372r1_rule
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy should never be enabled.System AdministratorIAIA-1, IAIA-2
Checks: C-141r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for “Store password using reversible encryption” is not disabled, then this is a finding.

Fix: F-115r1_fix

Configure the system to prevent passwords from being saved using reverse encryption.

b
The Server Operators group must have the ability to schedule jobs by means of the AT command disabled.
AC-6 - Medium - CCI-002235 - V-2373 - SV-2373r2_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
AD.3058
Vuln IDs
  • V-2373
Rule IDs
  • SV-2373r2_rule
This policy controls the ability of members of the local Server Operators group to schedule AT jobs. If disabled, only administrators can schedule jobs that use AT commands. Unlike Scheduled Tasks which require you to specify the credential under which the task will run, AT jobs run under the authority of whatever account the AT service runs (SYSTEM by default). Non administrators who can schedule AT commands, thus have a means to elevate their privileges. Although this setting is disabled, Server Operators will still be able to schedule jobs using Task Scheduler.HKSystem AdministratorECSC-1
Checks: C-32082r1_chk

1. Analyze the system using the Security Configuration and Analysis snap-in. 2. Expand the Security Configuration and Analysis tree view. 3. Navigate to Local Policies and select Security Options. 4. If the value for “Domain Controller: Allow server operators to schedule tasks” is not set to “Disabled”, then this is a finding.

Fix: F-28439r1_fix

Set the value for “Domain Controller: Allow server operators to schedule tasks” to “Disabled”. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\LSA\ Value Name: SubmitControl Value Type: REG_DWORD Value: 0

c
The system is configured to autoplay removable media.
CM-7 - High - CCI-001764 - V-2374 - SV-29525r2_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
3.059
Vuln IDs
  • V-2374
Rule IDs
  • SV-29525r2_rule
Autoplay begins reading from a drive as soon as you insert media in the drive. As a result, the setup file of programs and the music on audio media starts immediately. By default, Autoplay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive), and on network drives. If you enable this policy, you can also disable Autoplay on all drives.HKHKSystem AdministratorECSC-1
Checks: C-24203r2_chk

If the following registry values don’t exist or are not configured as specified this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ Value Name: NoDriveTypeAutorun Type: REG_DWORD Value: 0x000000ff (255) Note: If the value for NoDriveTypeAutorun is entered manually, it should be entered as “ff” when Hexadecimal is selected or “255” with Decimal selected. Using the policy specified in the Fix section will enter it correctly. Value Name: HonorAutorunSetting Type: REG_DWORD Value: 1 If the following sample file is not at least at the version listed this is a finding (updated as part of Microsoft patches KB953252 (patch KB950582) or KB967715) Shell32.dll XP SP2 – 6.0.2900.3402 XP SP3 – 6.0.2900.5622 XP SP2 x64 – 6.0.3790.4315 2003 SP2 – 6.0.3790.4315

Fix: F-20418r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> “Turn off AutoPlay” to “Enabled:All Drives”. Note: This was previously configured in the checklist using the Security Option setting “MSS: (NoDriveTypeAutorun) Disable Autorun on all drives” set to “255, disable Autorun for all drives”. This updates the same registry value (NoDriveTypeAutorun) as the Administrative Template setting. In addition to the above, Microsoft has released patches to correct issues with this setting. The patches from either Microsoft’s KB953252 (patch KB950582) or KB967715 must be installed. This will add the HonorAutorunSetting registry value and update the file referenced in the Check section.

b
The Kerberos policy option must be configured to enforce user logon restrictions.
CM-6 - Medium - CCI-000366 - V-2376 - SV-28495r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AD.4029_2003
Vuln IDs
  • V-2376
Rule IDs
  • SV-28495r1_rule
This policy setting determines whether the Kerberos Key Distribution Center (KDC) validates every request for a session ticket against the user rights policy of the target computer. The policy is enabled by default which is the most secure setting for validating access to target resources is not circumvented.System AdministratorECSC-1
Checks: C-468r1_chk

1. Analyze the system using the Security Configuration and Analysis tool. 2. Expand the Security Configuration and Analysis tree view. 3. Navigate to Account Policies -> Kerberos Policy. 4. If the “Enforce user logon restrictions” is not set to ‘Enabled’, then this is a finding.

Fix: F-5781r1_fix

Set the Kerberos policy option “Enforce user logon restrictions” to ‘Enabled’

b
The Kerberos service ticket maximum lifetime must meet minimum standards.
CM-6 - Medium - CCI-000366 - V-2377 - SV-28496r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AD.4030_2003
Vuln IDs
  • V-2377
Rule IDs
  • SV-28496r1_rule
This setting determines the maximum amount of time (in minutes) that a granted session ticket can be used to access a particular service. Session tickets are used only to authenticate new connections with servers. Ongoing operations are not interrupted if the session ticket used to authenticate the connection expires during the connection.System AdministratorECSC-1
Checks: C-39117r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Kerberos Policy. If the value for “Maximum lifetime for service ticket” is 0 or greater than 600 minutes, this is a finding.

Fix: F-34267r1_fix

Configure the Kerberos policy option “Maximum lifetime for service ticket” to a maximum of 600 minutes, but not 0 which equates to “Ticket doesn’t expire”.

b
The Kerberos policy option maximum lifetime for user ticket must be set to a maximum of 10 hours or less.
CM-6 - Medium - CCI-000366 - V-2378 - SV-28498r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AD.4031_2003
Vuln IDs
  • V-2378
Rule IDs
  • SV-28498r1_rule
In Kerberos, there are 2 types of tickets: Ticket Granting Tickets (TGTs) and Service Tickets. Kerberos tickets have a limited lifetime so the time an attacker has to implement an attack is limited. This policy controls how long TGTs can be renewed. With Kerberos, the user’s initial authentication to the domain controller results in a TGT which is then used to request Service Tickets to resources. Upon startup, each computer gets a TGT before requesting a service ticket to the domain controller and any other computers it needs to access. For services that startup under a specified user account, users must always get a TGT first, then get Service Tickets to all computers and services accessed. System AdministratorECSC-1
Checks: C-39119r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Kerberos Policy. If the value for “Maximum lifetime for user ticket” is 0 or greater than 10 hours, this is a finding.

Fix: F-34268r1_fix

Set the Kerberos policy option "Maximum lifetime for user ticket" to a maximum of 10 hours, but not 0 which equates to “Ticket doesn’t expire”.

b
The Kerberos policy option Maximum lifetime for user ticket renewal must be configured for a maximum of 7 days or less.
CM-6 - Medium - CCI-000366 - V-2379 - SV-28500r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AD.4032_2003
Vuln IDs
  • V-2379
Rule IDs
  • SV-28500r1_rule
This setting determines the period of time (in days) during which a users TGT may be renewed. This security configuration limits the amount of time an attacker has to crack the TGT and gain access.System AdministratorECSC-1
Checks: C-471r1_chk

1. Analyze the system using the Security Configuration and Analysis. 2. Expand the Security Configuration and Analysis tree view. 3. Navigate to Account Policies -> Kerberos Policy. 4. If the “Maximum lifetime for user ticket renewal” is greater than ‘7’ days, then this is a finding.

Fix: F-5784r1_fix

Configure the Kerberos policy option "Maximum lifetime for user ticket renewal" to a maximum of 7 days or less.

b
The Kerberos policy option Maximum tolerance for computer clock synchronization must be set to a maximum of 5 minutes or less.
IA-2 - Medium - CCI-001941 - V-2380 - SV-28504r1_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-001941
Version
AD.4033_2003
Vuln IDs
  • V-2380
Rule IDs
  • SV-28504r1_rule
This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's clock and the time on a server's clock while still considering the two clocks synchronous. In order to prevent replay attacks, Kerberos uses timestamps as part of its protocol definition. For timestamps to work properly, the clocks of the client and the server need to be in sync as much as possible.System AdministratorECSC-1
Checks: C-472r1_chk

1. Analyze the system using the Security Configuration and Analysis tool. 2. Expand the Security Configuration and Analysis tree view. 3. Navigate to Account Policies -> Kerberos Policy. 4. If the “Maximum tolerance for computer clock synchronization” is greater than ‘5’ minutes, then this is a finding.

Fix: F-5785r1_fix

Configure the Kerberos policy option Maximum tolerance for computer clock synchronization to a maximum of 5 minutes or less.

b
System files are not checked for unauthorized changes.
CM-6 - Medium - CCI-000366 - V-2907 - SV-29691r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.024
Vuln IDs
  • V-2907
Rule IDs
  • SV-29691r1_rule
Comparing system files against a baseline on a regular basis will detect the possibility of introduction of malicious code on the system.System AdministratorInformation Assurance OfficerDCSL-1
Checks: C-7891r1_chk

Interview the SA to determine if the site uses a tool to compare system files (*.exe, *.bat, *.com, *.cmd and *.dll) on servers against a baseline, on a weekly basis. Note: A properly configured HBSS Policy Auditor 5.2 or later, File Integrity Monitor (FIM) module will meet the requirement for file integrity checking. The Asset module within HBSS does not meet this requirement.

Fix: F-42r1_fix

The site should use a tool to compare system files (*.exe, *.bat, *.com, *.cmd and *.dll) on servers against a baseline, on a weekly basis.

c
Unencrypted remote access is permitted to system services.
AC-17 - High - CCI-000068 - V-2908 - SV-29694r1_rule
RMF Control
AC-17
Severity
High
CCI
CCI-000068
Version
3.061
Vuln IDs
  • V-2908
Rule IDs
  • SV-29694r1_rule
This is a category 1 finding because when unencrypted access to system services is permitted, an intruder can intercept user identification and passwords that are being transmitted in clear text. This could give an intruder unlimited access to the network.Information Assurance OfficerECCT-2, ECCT-1
Checks: C-7892r1_chk

Interview the IAO to ensure that encryption of userid and password information is required, and data is encrypted according to DoD policy. If the user account used for unencrypted remote access within the enclave (premise router) has administrator privileges, then this is a finding. If userid and password information used for remote access to system services from outside the enclave is not encrypted, then this is a finding.

Fix: F-120r1_fix

Encryption of userid and password information is required. Encryption of the user data inside the network firewall is also highly recommended. Encryption of user data coming from or going outside the network firewall is required. Encryption for administrator data is always required. Refer to the Enclave Security STIG section on “FTP and Telnet,” for detailed information on its use.

b
File share ACLs have not been reconfigured to remove the Everyone group.
SC-4 - Medium - CCI-001090 - V-3245 - SV-29211r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
2.015
Vuln IDs
  • V-3245
Rule IDs
  • SV-29211r1_rule
By default, the Everyone group is given full control to new file shares. When a share is created, permissions should be reconfigured to give the minimum access to those accounts that require it.System created shares should be excluded from the check.trueSystem AdministratorECAN-1
Checks: C-29r1_chk

Run the Computer Management Applet. Expand the “System Tools” object in the Tree window. Expand the “Shared Folders” object. Select the “Shares” object. Right click any user-created shares (ignore “Netlogon”, “Sysvol” and administrative shares; the system will prompt you if Properties are selected for administrative shares). Select Properties. Select the Share Permissions tab. If user-created file shares have not been reconfigured to remove ACL permissions from the “Everyone group”, then this is a finding. Note: On Application Servers, if regular users have write or delete permissions to shares containing application binary files (i.e. .exe, .dll, .cmd, etc.) this is a finding. Documentable: If shares created by applications require the "Everyone" group, this should be documented with the IAO.

Fix: F-59r1_fix

Remove permissions from the Everyone group from locally-created file shares and assign them to authorized groups.

b
A Server does not have a host-based Intrusion Detection System.
CM-6 - Medium - CCI-000366 - V-3289 - SV-29698r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.025
Vuln IDs
  • V-3289
Rule IDs
  • SV-29698r1_rule
A properly configured Host-based Intrusion Detection System provides another level of defense against unauthorized access to critical servers. With proper configuration and logging enabled, such a system can stop and/or alert for many attempts to gain unauthorized access to resources.This finding can be downgraded to a Category III, if there is an active JIDS or Firewall protecting the network. System AdministratorInformation Assurance OfficerECID-1
Checks: C-7893r1_chk

Interview the SA to determine if there is a host-based Intrusion Detection System on each server. Severity Override: This finding can be downgraded to a Category III, if there is an active JIDS or Firewall protecting the network. Note: If the HIPS component of HBSS is installed and active on the host and the Alerts of blocked activity are being logged and monitored, this will meet the requirement of this finding. Note: A HID device is not required on a system that has the role as the Network Intrusion Device (NID). However, this exception needs to be documented with the site IAO.

Fix: F-43r1_fix

Install a host-based Intrusion Detection System on each server

c
Anonymous SID/Name translation is allowed.
CM-6 - High - CCI-000366 - V-3337 - SV-29700r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
3.062
Vuln IDs
  • V-3337
Rule IDs
  • SV-29700r1_rule
This is a Category 1 finding because this setting controls the ability of users or process that have authenticated as anonymous users to perform SID/Name translation. This setting should be disabled, as only authorized users should be able to perform such translations.trueSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-152r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Allow anonymous SID/Name translation” is not set to “Disabled”, then this is a finding. Documentable Explanation: The default setting for domain controllers is Enabled. Disabling it means that legacy systems may be unable to communicate with Windows Server 2003/2008 – based domains. This requirement should be documented with the IAO.

Fix: F-121r1_fix

Configure the system to disable anonymous SID/Name translation.

c
Unauthorized named pipes are accessible with anonymous credentials.
SC-4 - High - CCI-001090 - V-3338 - SV-3338r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.063
Vuln IDs
  • V-3338
Rule IDs
  • SV-3338r1_rule
This is a Category 1 finding because the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. This setting controls which of these pipes anonymous users may access.System AdministratorECSC-1
Checks: C-153r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Named pipes that can be accessed anonymously” contains entries besides “COMNAP, COMNODE, SQL\QUERY, SPOOLSS, LLSRPC, BROWSER, NETLOGON, Lsarpc, samr”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: NullSessionPipes Value Type: REG_MULTI_SZ Value: As defined in the policy above Note: Legitimate applications may add entries to this registry value (i.e. Windows Terminal Server Licensing will add TermServLicensing and HydraLsPipe). If an application requires these entries to function properly and is documented with the IAO this would not be a finding. Documentation should contain supporting information from the vendor's instructions.

Fix: F-28868r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Named pipes that can be accessed anonymously” as defined in the Check section.

c
Unauthorized registry paths are remotely accessible.
SC-4 - High - CCI-001090 - V-3339 - SV-3339r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.064
Vuln IDs
  • V-3339
Rule IDs
  • SV-3339r1_rule
This is a Category 1 finding because it could give unauthorized individuals access to the Registry. It controls which registry paths are accessible from a remote computer.System AdministratorECCD-2, ECCD-1
Checks: C-32798r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Remotely accessible registry paths” contains entries besides the following, then this is a finding: System\CurrentControlSet\Control\ProductOptions System\CurrentControlSet\Control\Server Applications Software\Microsoft\Windows NT\CurrentVersion The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\SecurePipeServers\Winreg\AllowedExactPaths\ Value Name: Machine Value Type: REG_MULTI_SZ Value: As defined in policy above Note: Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the IAO, this would not be a finding. Documentation should contain supporting information from the vendor's instructions.

Fix: F-28869r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Remotely accessible registry paths” as defined in the Check section.

c
Unauthorized shares can be accessed anonymously.
SC-4 - High - CCI-001090 - V-3340 - SV-3340r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.065
Vuln IDs
  • V-3340
Rule IDs
  • SV-3340r1_rule
This is a Category 1 finding because the potential for gaining unauthorized system access. Any shares listed can be accessed by any network user. This could lead to the exposure or corruption of sensitive data. Enabling this setting is very dangerous.HKSystem AdministratorECCD-2, ECCD-1
Checks: C-32729r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Shares that can be accessed anonymously” includes any entries, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: NullSessionShares Value Type: REG_MULTI_SZ Value: (Blank)

Fix: F-28819r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Shares that can be accessed anonymously” to be defined but containing no entries (Blank).

c
Remote control of a Terminal Service session is allowed.
CM-6 - High - CCI-000366 - V-3341 - SV-29705r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
3.066
Vuln IDs
  • V-3341
Rule IDs
  • SV-29705r1_rule
This setting is used to control the rules for remote control of Terminal Services user sessions. This is a Category 1 finding because remote control of sessions could permit an unauthorized user to access sensitive information on the controlled system.HKSystem AdministratorECSC-1
Checks: C-161r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: Shadow Type: REG_DWORD Value: 0

Fix: F-126r1_fix

Configure the system to prevent remote control of the computer by setting the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services, “Sets rules for remote control of Terminal Services user settings” to “Enabled” and the “Options” will be set to “No remote control allowed”.

b
The computer does not wait for the network at computer startup.
CM-6 - Medium - CCI-000366 - V-3342 - SV-3342r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.067
Vuln IDs
  • V-3342
Rule IDs
  • SV-3342r2_rule
The setting determines if Windows waits for complete network initialization before allowing the user to log on. Part of this initialization is the application of Group Policy. This may permit a User to log on before all GPOs (Group Policy Objects) are obtained and processed and so the user may operate under the incorrect security context for a time.HKSystem AdministratorECSC-1
Checks: C-162r1_chk

The policy value for Computer Configuration -> Administrative Templates -> System -> Logon “Always Wait for the Network at Computer Startup and Logon” will be set to “Enabled”. If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: SyncForegroundPolicy Type: REG_DWORD Value: 1

Fix: F-127r1_fix

Configure the system to wait for complete network initialization before allowing a user to log on. This is done by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Logon “Always Wait for the Network at Computer Startup and Logon” to “Enabled”.

c
Solicited Remote Assistance is allowed.
SC-4 - High - CCI-001090 - V-3343 - SV-29228r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.068
Vuln IDs
  • V-3343
Rule IDs
  • SV-29228r1_rule
This setting controls whether or not solicited remote assistance is allowed from this computer. Solicited assistance is help that is specifically requested by the user. This is a Category 1 finding because it may allow unauthorized parties access to the resources on the computer.HKSystem AdministratorECSC-1
Checks: C-4088r1_chk

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fAllowToGetHelp Type: REG_DWORD Value: 0

Fix: F-6777r1_fix

Configure the system to disable Remote Assistance by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance “Solicited Remote Assistance” to “Disabled”.

c
The use of local accounts with blank passwords is not restricted to console logons only.
CM-6 - High - CCI-000366 - V-3344 - SV-29232r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
4.036
Vuln IDs
  • V-3344
Rule IDs
  • SV-29232r1_rule
This is a Category 1 finding because no accounts with blank passwords should exist on a system. The password policy should prevent this from occurring. However, if a local account with a blank password does exist, enabling this setting will limit the account to local console logon only.HKSystem AdministratorIAIA-1
Checks: C-475r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Accounts: Limit local account use of blank passwords to console logon only” is not set to ” Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa Value Name: LimitBlankPasswordUse Value Type: REG_DWORD Value: 1

Fix: F-5788r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Accounts: Limit local account use of blank passwords to console logon only” to “Enabled”.

b
The user is allowed to launch Windows Messenger (MSN Messenger, .NET Messenger).
CM-7 - Medium - CCI-000381 - V-3348 - SV-29237r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
5.017
Vuln IDs
  • V-3348
Rule IDs
  • SV-29237r1_rule
This setting prevents the Windows Messenger client from being run. Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.trueSystem AdministratorInformation Assurance OfficerECIM-1
Checks: C-546r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Messenger\Client\ Value Name: PreventRun Type: REG_DWORD Value: 1 Documentable Explanation: If the site has a requirement for Windows Messaging and meets the conditions of the Instant Messaging STIG this needs to be documented with the IAO.

Fix: F-5827r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Messenger “Do Not Allow Windows Messenger to be Run” to “Enabled”.

b
Windows Messenger (MSN Messenger, .NET messenger) is run at system startup.
CM-7 - Medium - CCI-000381 - V-3349 - SV-29242r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
5.018
Vuln IDs
  • V-3349
Rule IDs
  • SV-29242r1_rule
This setting prevents the automatic launch of Windows Messenger at user logon. Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.trueSystem AdministratorInformation Assurance OfficerECIM-1
Checks: C-547r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Messenger\Client\ Value Name: PreventAutoRun Type: REG_DWORD Value: 1 Documentable Explanation: If the site has a requirement for Windows Messaging and meets the conditions of the Instant Messaging STIG this needs to be documented with the IAO.

Fix: F-5828r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Messenger “Do Not Automatically Start Windows Messenger Initially” to “Enabled”.

b
Restricted accounts are not disabled.
CM-6 - Medium - CCI-000366 - V-3369 - SV-29604r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
4.048
Vuln IDs
  • V-3369
Rule IDs
  • SV-29604r1_rule
Several new accounts are created as part of the default installation. As these accounts are well known they may represent prime attack targets. To help prevent attacks using the well-known accounts the following accounts should be disabled: HelpAssistant and Support_388945a0.HKSystem AdministratorIAAC-1
Checks: C-504r1_chk

Using the DUMPSEC utility: Select “Dump Users as Table” from the “Report” menu. Select the available fields in the following sequence, and click on the “Add” button for each entry: UserName SID PswdRequired PswdExpires LastLogonTime AcctDisabled Groups If the HelpAssistant or Support_388945a0 accounts have not been disabled, then this is a finding.

Fix: F-5804r1_fix

Configure the system to disable restricted accounts such as HelpAssistant or Support_388945a0.

b
The system can be removed from the docking station without logging on first.
CM-6 - Medium - CCI-000366 - V-3372 - SV-3372r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.069
Vuln IDs
  • V-3372
Rule IDs
  • SV-3372r2_rule
This setting controls the ability to undock the system without having to log on. Since the removal of a computer should be controlled, users should have to log on before undocking the computer to ensure that they have the appropriate rights to undock the system. In addition to software security settings, physical security should be in place to prevent unauthorized removal of computers.HKSystem AdministratorECSC-1
Checks: C-167r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Devices: Allow Undock Without Having to Log On” is not set to ” Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System Value Name: UndockWithoutLogon Value Type: REG_DWORD Value: 0

Fix: F-130r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Devices: Allow Undock Without Having to Log On” to “Disabled”.

a
The maximum age for machine account passwords is not set to requirements.
CM-6 - Low - CCI-000366 - V-3373 - SV-29245r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
4.043
Vuln IDs
  • V-3373
Rule IDs
  • SV-29245r1_rule
This setting controls the maximum password age that a machine account may have. This setting should be set to no more than 30 days, ensuring the machine changes its password monthly.HKSystem AdministratorIAIA-1, IAIA-2
Checks: C-39126r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Maximum Machine Account Password Age” is 0 or greater than 30 (30 is the default), this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: MaximumPasswordAge Value Type: REG_DWORD Value: 30

Fix: F-34273r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Maximum Machine Account Password Age” to 30 or less, but not 0.

b
The system is not configured to require a strong session key.
SC-8 - Medium - CCI-002418 - V-3374 - SV-29248r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
4.044
Vuln IDs
  • V-3374
Rule IDs
  • SV-29248r1_rule
This setting controls the required strength of a session key. Setting this value in a domain containing Windows NT or older operating systems will prevent those systems from authenticating. This setting can also prevent a system from being joined to a domain.HKSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-502r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Require Strong (Windows 2000 or Later) Session Key” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireStrongKey Value Type: REG_DWORD Value: 1 Warning: This setting may prevent a system from being joined to a domain if not configured consistently between systems.

Fix: F-5801r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Require Strong (Windows 2000 or Later) Session Key” to “Enabled”.

b
Domain Controller authentication is not required to unlock the workstation.
CM-6 - Medium - CCI-000366 - V-3375 - SV-3375r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
4.045
Vuln IDs
  • V-3375
Rule IDs
  • SV-3375r1_rule
This setting controls the behavior of the system when you attempt to unlock the workstation. If this setting is enabled, the system will pass the credentials to the domain controller (if in a domain) for authentication before allowing the system to be unlocked. This setting should be enabled.HKSystem AdministratorECSC-1
Checks: C-503r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Interactive logon: Require domain controller authentication to unlock workstation” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: ForceUnlockLogon Value Type: REG_DWORD Value: 1

Fix: F-5802r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive logon: Require domain controller authentication to unlock workstation” to “Enabled”.

b
The system is configured to permit storage of credentials or .NET Passports.
IA-11 - Medium - CCI-002038 - V-3376 - SV-29257r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
3.070
Vuln IDs
  • V-3376
Rule IDs
  • SV-29257r1_rule
This setting controls the storage of authentication credentials or .NET passports on the local system. Such credentials should never be stored on the local machine as that may lead to account compromise.HKSystem AdministratorECSC-1
Checks: C-171r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Do not allow storage of credentials or .NET passports for network authentication” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: DisableDomainCreds Value Type: REG_DWORD Value: 1

Fix: F-132r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Do not allow storage of credentials or .NET passports for network authentication” to “Enabled”.

b
The system is configured to give anonymous users Everyone rights.
CM-6 - Medium - CCI-000366 - V-3377 - SV-29262r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.071
Vuln IDs
  • V-3377
Rule IDs
  • SV-29262r1_rule
This setting helps define the permissions that anonymous users have. If this setting is enabled then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users should not have these permissions or rights.HKSystem AdministratorInformation Assurance OfficerECCD-1, ECLP-1, ECSC-1, ECCD-2
Checks: C-172r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Let everyone permissions apply to anonymous users” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: EveryoneIncludesAnonymous Value Type: REG_DWORD Value: 0

Fix: F-133r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Let everyone permissions apply to anonymous users” to “Disabled”.

b
The system is not configured to use the Classic security model.
SC-4 - Medium - CCI-001090 - V-3378 - SV-29265r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
3.072
Vuln IDs
  • V-3378
Rule IDs
  • SV-29265r1_rule
Windows includes two network-sharing security models - Classic and Guest only. With the classic model, local accounts must be password protected; otherwise, anyone can use guest user accounts to access shared system resources.HKSystem AdministratorECLO-1
Checks: C-174r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Sharing and security model for local accounts” is not set to “Classic - local users authenticate as themselves”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: ForceGuest Value Type: REG_DWORD Value: 0

Fix: F-134r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Sharing and security model for local accounts” to “Classic - local users authenticate as themselves”.

c
The system is configured to store the LAN Manager hash of the password in the SAM.
IA-5 - High - CCI-000196 - V-3379 - SV-29268r1_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000196
Version
3.073
Vuln IDs
  • V-3379
Rule IDs
  • SV-29268r1_rule
This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed. The LAN Manager hash is a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords.HKSystem AdministratorInformation Assurance OfficerIAIA-2, ECSC-1, IAIA-1
Checks: C-181r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: Do not store LAN Manager hash value on next password change” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: NoLMHash Value Type: REG_DWORD Value: 1

Fix: F-141r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: Do not store LAN Manager hash value on next password change” to “Enabled”.

b
The system is not configured to force users to log off when their allowed logon hours expire.
SC-10 - Medium - CCI-001133 - V-3380 - SV-29527r1_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
3.074
Vuln IDs
  • V-3380
Rule IDs
  • SV-29527r1_rule
This setting controls whether or not users are forced to log off when their allowed logon hours expire. If logon hours are set for users, then this should be enforced.HKSystem AdministratorECSC-1
Checks: C-184r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: Force logoff when logon hours expire” is not set to “Enabled”, then this is a finding.

Fix: F-142r1_fix

Configure the system to log off users when their allowed logon hours expire.

b
The system is not configured to recommended LDAP client signing requirements.
CM-6 - Medium - CCI-000366 - V-3381 - SV-29271r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.075
Vuln IDs
  • V-3381
Rule IDs
  • SV-29271r1_rule
This setting controls the signing requirements for LDAP clients. This setting should be set to Negotiate signing or Require signing depending on the environment and type of LDAP server in use.HKSystem AdministratorECSC-1
Checks: C-14464r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: LDAP client signing requirements” is not set to at least “Negotiate signing”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LDAP\ Value Name: LDAPClientIntegrity Value Type: REG_DWORD Value: 1

Fix: F-143r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: LDAP client signing requirements” to “Negotiate signing” at a minimum.

b
The system is not configured to meet the minimum requirement for session security for NTLM SSP based Clients.
CM-6 - Medium - CCI-000366 - V-3382 - SV-29529r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.076
Vuln IDs
  • V-3382
Rule IDs
  • SV-29529r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.trueMicrosoft warns that setting these may prevent the client from communicating with legacy servers that do not support them. “Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager authentication level” is set to permit NTLM or LM authentication. System AdministratorInformation Assurance OfficerECCT-1, ECCT-2
Checks: C-187r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: Minimum session security for NTLM SSP based (including secure RPC) clients” is not set to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\MSV1_0\ Value Name: NTLMMinClientSec Value Type: REG_DWORD Value: 537395248 Warnings: Microsoft warns that setting these may prevent the client from communicating with legacy servers that do not support them. “Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager Authentication level” is set to permit NTLM or LM authentication. Documentable Explanation: If these settings need to be modified in a mixed Windows environment, the changes should be documented with the IAO.

Fix: F-145r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: Minimum session security for NTLM SSP based (including secure RPC) clients” to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality” (all options selected).

b
The system is not configured to use FIPS compliant Algorithms for Encryption, Hashing, and Signing.
SC-13 - Medium - CCI-002450 - V-3383 - SV-29531r1_rule
RMF Control
SC-13
Severity
Medium
CCI
CCI-002450
Version
3.077
Vuln IDs
  • V-3383
Rule IDs
  • SV-29531r1_rule
This setting ensures that the system uses algorithms that are FIPS compliant for encryption, hashing, and signing. FIPS compliant algorithms meet specific standards established by the U.S. Government and should be the algorithms used for all OS encryption functions.Clients with this setting enabled will not be able to communicate via digitally encrypted or signed protocols with servers that do not support these algorithms. Both the Browser and Web Server must be configured to use TLS, or the browser will not be able to connect to a secure site.HKSystem AdministratorECCT-1, ECCT-2
Checks: C-202r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: FIPSAlgorithmPolicy Value Type: REG_DWORD Value: 1 Warning: Clients with this setting enabled will not be able to communicate via digitally encrypted or signed protocols with servers that do not support these algorithms. Both the browser and web server must be configured to use TLS, or the browser will not be able to connect to a secure site.

Fix: F-5681r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing” to “Enabled”.

b
The system is not configured to make the object creator the owner of objects created by administrators.
CM-6 - Medium - CCI-000366 - V-3384 - SV-29710r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
2.016
Vuln IDs
  • V-3384
Rule IDs
  • SV-29710r1_rule
Either the object creator or the Administrators group owns objects created by members of the Administrators group. In order to ensure accurate auditing and proper accountability, the default owner should be the object creator.HKSystem AdministratorECSC-1
Checks: C-31r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System objects: Default owner for object created by members of the Administrators group” is not set to “Object creator”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\ Value Name: NoDefaultAdminOwner Value Type: REG_DWORD Value: 1

Fix: F-60r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System objects: Default owner for object created by members of the Administrators group” to “Object creator”.

b
The system is configured to allow case insensitivity.
CM-6 - Medium - CCI-000366 - V-3385 - SV-29534r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.078
Vuln IDs
  • V-3385
Rule IDs
  • SV-29534r1_rule
This setting controls the behavior of non-Windows subsystems when dealing with the case of arguments or commands. Case sensitivity could lead to the access of files or commands that should be restricted. To prevent this from happening, case insensitivity restrictions should be required.HKSystem AdministratorECSC-1
Checks: C-203r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System Object: Require Case Insensitivity for Non-Windows Subsystems” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Session Manager\Kernel\ Value Name: ObCaseInsensitive Value Type: REG_DWORD Value: 1

Fix: F-5682r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System Object: Require Case Insensitivity for Non-Windows Subsystems” to “Enabled”.

b
The system is configured to allow remote desktop sharing through NetMeeting.
CM-7 - Medium - CCI-000381 - V-3426 - SV-29275r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
5.027
Vuln IDs
  • V-3426
Rule IDs
  • SV-29275r1_rule
Remote desktop sharing enables several users to interact and control one desktop. This could allow unauthorized users to control the system. Remote desktop sharing should be disabled.HKSystem AdministratorECSC-1
Checks: C-1738r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Conferencing\ Value Name: NoRDS Type: REG_DWORD Value: 1

Fix: F-5908r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> NetMeeting “Disable remote Desktop Sharing” to “Enabled".

b
Terminal Services is not configured to limit users to one remote session.
AC-10 - Medium - CCI-000054 - V-3449 - SV-3449r1_rule
RMF Control
AC-10
Severity
Medium
CCI
CCI-000054
Version
5.038
Vuln IDs
  • V-3449
Rule IDs
  • SV-3449r1_rule
This setting limits users to one remote session. It is possible, if this setting is disabled, for users to establish multiple sessions.trueSystem AdministratorInformation Assurance OfficerECLO-1, ECLO-2
Checks: C-32895r1_chk

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fSingleSessionPerUser Type: REG_DWORD Value: 1 Documentable Explanation: If the system has the role as a Terminal/Remote Desktop Server or the site is using remote desktop services for remote administration, this requirement needs to be documented with the IAO.

Fix: F-5918r1_fix

2003 - Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services “Restrict Terminal Server users to a Single Remote Session” to “Enabled”.

b
Terminal Services is not configured to limit the number of connections.
CM-6 - Medium - CCI-000366 - V-3450 - SV-3450r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.039
Vuln IDs
  • V-3450
Rule IDs
  • SV-3450r2_rule
This setting limits the number of simultaneous connections allowed to the terminal server. By default, unlimited connections are allowed. Allowing unlimited connections allows a potential DoS attack. The number of incoming connections should be limited to one.trueSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-1801r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MaxInstanceCount Type: REG_DWORD Value: 1 Documentable Explanation: If the system has the role as a Terminal Server, or the site is using terminal services for remote administration this requirement needs to be documented with the IAO.

Fix: F-5919r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services “Limit Number of Connections” to “Enabled”, and the value “TS maximum connections allowed” to no more than “1”.

b
Terminal Services is not configured with the client connection encryption set to the required level.
AC-17 - Medium - CCI-000068 - V-3454 - SV-29279r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000068
Version
5.043
Vuln IDs
  • V-3454
Rule IDs
  • SV-29279r2_rule
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting “High Level” will ensure encryption of Terminal Services sessions in both directions.HKSystem AdministratorECCT-2, ECCT-1
Checks: C-40665r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MinEncryptionLevel Type: REG_DWORD Value: 3

Fix: F-5923r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Encryption and Security “Set Client Connection Encryption Level” to “Enabled” and select “High Level” for the “Encryption Level”.

b
Terminal Services is configured to use a common temporary folder for all sessions.
CM-6 - Medium - CCI-000366 - V-3455 - SV-29100r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.044
Vuln IDs
  • V-3455
Rule IDs
  • SV-29100r1_rule
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the use of per session temporary folders or of a communal temporary folder. If this setting is enabled, only one temporary folder is used for all terminal services sessions. If a communal temporary folder is used, it might be possible for users to access other users temporary folders.HKSystem AdministratorECRC-1
Checks: C-1899r1_chk

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: PerSessionTempDir Type: REG_DWORD Value: 1

Fix: F-5925r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Temporary Folders “Do Not Use Temp Folders per Session” to “Disabled”.

b
Terminal Services is not configured to delete temporary folders.
CM-6 - Medium - CCI-000366 - V-3456 - SV-29102r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.045
Vuln IDs
  • V-3456
Rule IDs
  • SV-29102r1_rule
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the deletion of the temporary folders when the session is terminated. Temporary folders should always be deleted after a session is over to prevent hard disk clutter and potential leakage of information.HKSystem AdministratorECRC-1
Checks: C-1906r1_chk

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: DeleteTempDirsOnExit Type: REG_DWORD Value: 1

Fix: F-5928r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Temporary Folders “Do Not Delete Temp Folder upon Exit” to “Disabled”.

b
Terminal Services is not configured to set a time limit for disconnected sessions.
SC-10 - Medium - CCI-001133 - V-3457 - SV-29104r1_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
5.046
Vuln IDs
  • V-3457
Rule IDs
  • SV-29104r1_rule
This setting controls how long a session will remain open if it is unexpectedly terminated. Such sessions should be terminated as soon as possible.HKSystem AdministratorECSC-1
Checks: C-32896r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MaxDisconnectionTime Type: REG_DWORD Value: 0x0000ea60 (60000)

Fix: F-34274r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Sessions “Set Time Limit for Disconnected Sessions” to “Enabled”, and the “End a disconnected session” to “1 minute".

b
Terminal Services idle session time limit does not meet the requirement.
SC-10 - Medium - CCI-001133 - V-3458 - SV-29106r1_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
5.047
Vuln IDs
  • V-3458
Rule IDs
  • SV-29106r1_rule
This setting controls how long a session may be idle before it is automatically disconnected from the server. Users should disconnect if they plan on being away from their terminals for extended periods of time. Idle sessions should be disconnected after 15 minutes.HKSystem AdministratorECSC-1
Checks: C-39128r1_chk

If the following registry value does not exist or its value is set to 0 or greater than 15 minutes, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MaxIdleTime Type: REG_DWORD Value: 0x000dbba0 (900000) or less but not 0

Fix: F-34276r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Sessions “Set time limit for active but idle Terminal Services sessions” to “Enabled”, and the “Idle session limit” to 15 minutes or less, excluding 0 which equates to “Never”.

b
Terminal Services is not configured to allow only the original client to reconnect.
CM-6 - Medium - CCI-000366 - V-3459 - SV-29712r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.048
Vuln IDs
  • V-3459
Rule IDs
  • SV-29712r1_rule
This setting, which is located under the Sessions section of the Terminal Services configuration option, controls whether a different client may be used to resume a disconnected session. Only the original client should be able to resume a session to help prevent session hijacking.HKSystem AdministratorECSC-1
Checks: C-1925r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fReconnectSame Type: REG_DWORD Value: 1

Fix: F-5933r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Sessions “Allow Reconnection from Original Client Only” to “Enabled”.

b
Terminal Services is not configured to disconnect clients when time limits are exceeded.
SC-10 - Medium - CCI-001133 - V-3460 - SV-29714r1_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
5.049
Vuln IDs
  • V-3460
Rule IDs
  • SV-29714r1_rule
This setting, which is located under the Sessions section of the Terminal Services configuration option, controls whether or not clients are forcefully disconnected if their terminal services time limit is exceeded. If time limits are established for users, they should be enforced.HKSystem AdministratorECSC-1
Checks: C-1929r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fResetBroken Type: REG_DWORD Value: 1

Fix: F-5936r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Sessions “Terminate Session When Time Limits are Reached” to “Enabled”.

b
The system is configured to prevent background refresh of Group Policy.
CM-6 - Medium - CCI-000366 - V-3469 - SV-29605r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.080
Vuln IDs
  • V-3469
Rule IDs
  • SV-29605r2_rule
If this setting is enabled, then Group Policy settings are not refreshed while a user is currently logged on. This could lead to instances when a user does not have the latest changes to a policy applied and is therefore operating in an insecure context.HKSystem AdministratorECSC-1
Checks: C-40666r1_chk

Review the registry. If the following registry value does not exist, this is not a finding (This is the expected result from configuring the policy as outlined in the Fix section). If the following registry value does exist but is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Microsoft\Windows\CurrentVersion\Policies\system\ Value Name: DisableBkGndGroupPolicy Type: REG_DWORD Value: 0

Fix: F-5684r1_fix

Configure the system to require Group Policy background refresh by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy “Turn Off Background Refresh of Group Policy” to “Disabled”.

b
The system is configured to allow unsolicited remote assistance offers.
SC-4 - Medium - CCI-001090 - V-3470 - SV-29281r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
3.082
Vuln IDs
  • V-3470
Rule IDs
  • SV-29281r1_rule
This setting controls whether unsolicited offers of help to this computer are allowed. The list of users allowed to offer remote assistance to this system is accessed by pressing the Helpers button.HKSystem AdministratorECSC-1
Checks: C-29882r1_chk

If the following registry value doesn’t exist or is not configured as specified this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fAllowUnsolicited Type: REG_DWORD Value: 0

Fix: F-6776r1_fix

Configure the system to prevent unsolicited remote assistance offers by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance “Offer Remote Assistance” to “Disabled”.

b
The system must be configured to collect error information.
SI-11 - Medium - CCI-001312 - V-3471 - SV-29284r2_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001312
Version
WINER-000002
Vuln IDs
  • V-3471
Rule IDs
  • SV-29284r2_rule
Windows Error Reporting information can be used to help diagnose day-to-day software issues, as well as help discover malicious code and possibly zero-day attacks on systems.HKSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-57135r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\PCHealth\ErrorReporting\ Value Name: DoReport Type: REG_DWORD Value: 1

Fix: F-61461r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Windows Error Reporting" to "Disabled".

a
The system is configured to use an unauthorized time server.
AU-8 - Low - CCI-001891 - V-3472 - SV-29537r1_rule
RMF Control
AU-8
Severity
Low
CCI
CCI-001891
Version
3.084
Vuln IDs
  • V-3472
Rule IDs
  • SV-29537r1_rule
The Windows Time Service controls time synchronization settings. Time synchronization is essential for authentication and auditing purposes. If the Windows Time Service is used, it should synchronize with a secure, authorized time source. Domain joined systems are automatically configured to synchronize with domain controllers. If an NTP server is configured it should synchronize with a secure, authorized time source. System AdministratorECSC-1
Checks: C-39220r1_chk

Review the following registry values: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\W32time\Parameters\ Value Name: Type Type: REG_SZ Value: Possible values are NoSync, NTP, NT5DS, AllSync And Value Name: NTPServer Type: REG_SZ Value: "address of the time server" The following would be a finding: "Type" has a value of "NTP" or "Allsync" AND the "NTPServer" value is set to "time.windows.com" or other unauthorized server. The following would not be a finding: The referenced registry values do not exist. "Type" has a value of "NoSync" or "NT5DS". "Type" has a value of "NTP" or "Allsync" AND the "NTPServer" is blank or configured to an authorized time server. For DoD organizations, the US Naval Observatory operates stratum 1 time servers, identified at http://tycho.usno.navy.mil/ntp.html. Time synchronization will occur through a hierarchy of time servers down to the local level. Clients and lower level servers will synchronize with an authorized time server in the hierarchy. Domain joined systems are automatically configured to synchronize with domain controllers and would not be a finding unless this is changed. Automated tools may report this as finding even if enabled and configured correctly as the validity of the time server address needs to be verified.

Fix: F-34317r1_fix

If the system needs to be configured to an NTP server, configure the system to point to an authorized time server by setting the policy value for Computer Configuration -> Administrative Templates -> System -> Windows Time Service -> Time Providers “Configure Windows NTP Client” to “Enabled”, and configure the “NtpServer” field to point to an authorized time server.

b
The system is configured to allow installation of printers using kernel-mode drivers.
CM-6 - Medium - CCI-000366 - V-3478 - SV-29715r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.087
Vuln IDs
  • V-3478
Rule IDs
  • SV-29715r1_rule
Kernel-mode drivers are drivers that operate in kernel mode. Kernel mode allows virtually unlimited access to hardware and memory. A poorly written kernel driver may cause system instability and data corruption. Malicious code inserted in a kernel-mode driver has almost no limit on what it may do. Most modern printers do not require kernel-mode drivers.This setting will prevent some applications from installing PDF print drivers. If necessary temporarily disable this setting while installing a legitimate kernel-mode driver.HKSystem AdministratorDCSL-1
Checks: C-220r1_chk

The policy value for Computer Configuration -> Administrative Templates -> System -> Printers “Disallow Installation of Printers Using Kernel-mode Drivers” will be set to “Enabled”. If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Printers\ Value Name: KMPrintersAreBlocked Type: REG_DWORD Value: 1 Note: This setting will prevent some applications from installing PDF print drivers.

Fix: F-5698r1_fix

Configure the system to prevent it from allowing the installation of kernel-mode drivers by setting the policy value for Computer Configuration -> Administrative Templates -> Printers “Disallow Installation of Printers Using Kernel-mode Drivers” to “Enabled”.

b
The system is not configured to use Safe DLL Search Mode.
CM-6 - Medium - CCI-000366 - V-3479 - SV-29716r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.088
Vuln IDs
  • V-3479
Rule IDs
  • SV-29716r1_rule
The default search behavior, when an application calls a function in a Dynamic Link Library (DLL), is to search the current directory followed by the directories contained in the systems path environment variable. An unauthorized DLL inserted into an applications working directory could allow malicious code to be run on the system. Creating the following registry key and setting the appropriate value forces the system to search the %Systemroot% for the DLL before searching the current directory or the rest of the path.HKSystem AdministratorECSC-1
Checks: C-221r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (SafeDllSearchMode) Enable Safe DLL search mode (recommended)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Session Manager\ Value Name: SafeDllSearchMode Value Type: REG_DWORD Value: 1

Fix: F-5699r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (SafeDllSearchMode) Enable Safe DLL search mode (recommended)” to “Enabled”.

b
Media Player must be configured to prevent automatic checking for updates.
CM-11 - Medium - CCI-001812 - V-3480 - SV-40094r2_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
5.060
Vuln IDs
  • V-3480
Rule IDs
  • SV-40094r2_rule
Uncontrolled system updates can introduce issues to a system. The automatic check for updates performed by Windows Media Player must be disabled to ensure a constant platform and to prevent the introduction of unknown\untested software on the system.HKSystem AdministratorDCSL-1
Checks: C-46902r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\WindowsMediaPlayer\ Value Name: DisableAutoupdate Type: REG_DWORD Value: 1

Fix: F-45023r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> "Prevent Automatic Updates" to "Enabled".

b
Media Player is configured to allow automatic CODEC downloads.
CM-11 - Medium - CCI-001812 - V-3481 - SV-29720r1_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
5.061
Vuln IDs
  • V-3481
Rule IDs
  • SV-29720r1_rule
The Windows Media Player uses software components, referred to as CODECs, to play back media files. By default, when an unknown file type is opened with the Media Player it will search the Internet for the appropriate CODEC and automatically download it. To ensure platform consistency and to protect against new vulnerabilities associated with media types, all CODECs must be installed by the System Administrator.HKSystem AdministratorDCSL-1
Checks: C-2049r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_Current_User Subkey: \Software\Policies\Microsoft\WindowsMediaPlayer\ Value Name: PreventCodecDownload Type: REG_DWORD Value: 1

Fix: F-5993r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> Playback “Prevent Codec Download” to “Enabled”.

b
Unnecessary services must be disabled.
CM-7 - Medium - CCI-000381 - V-3487 - SV-3487r2_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
5.068
Vuln IDs
  • V-3487
Rule IDs
  • SV-3487r2_rule
Unnecessary services increase the attack surface of a system. Some services may be run under the local System account, which generally has more permissions than required by the service. Compromising a service could allow an intruder to obtain system permissions and open the system to a variety of attacks.trueSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-57133r2_chk

Run "Services.msc". If services listed below are found, that are not disabled, and the site does not have documented exceptions for these, this is a finding. Alerter Application Layer Gateway Service Application Management ASP .NET State Service Certificate Services Client Service for NetWare ClipBook Cluster Service COM+ System Application DHCP Server Distributed Link Tracking Client Distributed Link Tracking Server Distributed Transaction Coordinator Fax Service File Server for Macintosh FTP Publishing Service Help and Support HTTP SSL Human Interface Device Access IAS Jet Database Access IIS Admin Service IMAPI CD-Burning COM Service Indexing Service Infrared Monitor Internet Authentication Service IP Version 6 Helper Service License Logging Service Message Queuing Message Queuing Down Level Clients Message Queuing Triggers Messenger Microsoft POP3 Service MSSQL$UDDI MSSQLServerADHelper .NET Framework Support Service NetMeeting Remote Desktop Sharing Network DDE Network DDE DSDM Network News Transport Protocol (NNTP) Portable Media Serial Number Print Server for Macintosh Print Spooler Remote Access Auto Connection Manager Remote Access Connection Manager Remote Desktop Help Session Manager Remote Installation Remote Server Manager Remote Server Monitor Remote Storage Notification Remote Storage Server Resultant Set of Policy Provider Routing and Remote Access SAP Agent Secondary Logon Shell Hardware Detection Simple Mail Transport Protocol (SMTP) Simple TCP/IP Services Single Instance Storage Groveler SNMP Service SNMP Trap Service Special Administration Console Helper Task Scheduler - See separate vulnerability WINSV-000106/V-30037 TCP/IP Print Server Telephony Telnet Terminal Services Terminal Services Licensing Terminal Services Session Directory Themes Trivial FTP Daemon Uninterruptible Power Supply Upload Manager Virtual Disk Service WebClient Web Element Manager Windows Audio Windows Firewall/Internet Connection Sharing (ICS) Windows Image Acquisition (WIA) Windows Internet Name Service (WINS) Windows Media Services Windows System Resource Manager WinHTTP Web Proxy Auto-Discovery Service Wireless Configuration World Wide Web Publishing Service

Fix: F-6001r1_fix

Configure the system to disable any services that are not required.

b
There is no local policy for reviewing audit logs.
CM-6 - Medium - CCI-000366 - V-3491 - SV-29722r3_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.029
Vuln IDs
  • V-3491
Rule IDs
  • SV-29722r3_rule
To be of value, audit logs from servers and other critical systems will be reviewed on a daily basis to identify security breaches and potential weaknesses in the security structure. This can be done with the use of monitoring software or other utilities for this purpose.System AdministratorInformation Assurance OfficerECAT-1, ECAT-2
Checks: C-3244r2_chk

The site will have a policy that requires servers and other critical systems be reviewed on a daily basis to identify possible security breaches and weakness. This can be accomplished with the use of monitoring software or other utilities for this purpose.

Fix: F-6578r1_fix

Create a site policy that mandates review of audit logs.

b
The system is not configured to meet the minimum requirement for session security for NTLM SSP based Servers.
CM-6 - Medium - CCI-000366 - V-3666 - SV-29356r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.089
Vuln IDs
  • V-3666
Rule IDs
  • SV-29356r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.trueMicrosoft warns that setting these may prevent the server from communicating with legacy clients that do not support them. “Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager authentication level” is set to permit NTLM or LM authentication. System AdministratorInformation Assurance OfficerECCT-1, ECCT-2
Checks: C-222r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network security: Minimum session security for NTLM SSP based (including secure RPC) servers” is not set to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Lsa\MSV1_0\ Value Name: NTLMMinServerSec Value Type: REG_DWORD Value: 537395248 Warnings: Microsoft warns that setting these may prevent the server from communicating with legacy clients that do not support them. Warning: “Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager Authentication level” is set to permit NTLM or LM authentication. Documentable Explanation: If the required settings must be modified to support operation in a mixed Windows environment, then this should be documented with the IAO.

Fix: F-5700r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: Minimum session security for NTLM SSP based (including secure RPC) servers” to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality” (all options selected).

b
Security-related Software Patches are not applied.
CM-6 - Medium - CCI-000366 - V-3828 - SV-29725r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
2.019
Vuln IDs
  • V-3828
Rule IDs
  • SV-29725r1_rule
Major software vendors release security patches and hot fixes to their products when security vulnerabilities are discovered. It is essential that these updates be applied in a timely manner to prevent unauthorized persons from exploiting identified vulnerabilities. The Severity code may be elevated to a Category I if patches deemed Critical have not been applied.If any of the patches not installed are Microsoft ‘Critical’, then this should be elevated to a Category 1.System AdministratorInformation Assurance OfficerVIVM-1
Checks: C-35r1_chk

Verify that the site is applying all security-related patches released by Microsoft. Determine the local site method for doing this (e.g., connection to a WSUS server, local procedure, etc.). Severity Override: If any of the patches not installed are Microsoft ‘Critical’, then the category code should be elevated to ‘1’. Note: If a penetration scan has been run on the network, it will report findings if security-related updates are not applied. Then, this check may be marked as “Not Applicable”. Some applications (such as DMS and GCSS) use a system release process to keep systems current. If this is the case, then these systems should be at the current release.

Fix: F-63r1_fix

Apply all Microsoft security-related patches to the Windows system.

c
Windows operating systems that are no longer supported by the vendor for security updates must not be installed on a system.
CM-6 - High - CCI-000366 - V-4107 - SV-70683r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WIN00-000001
Vuln IDs
  • V-4107
Rule IDs
  • SV-70683r2_rule
Windows operating systems that are no longer supported by Microsoft for security updates are not evaluated or updated for vulnerabilities leaving them open to potential attack. Organizations must upgrade to a supported operating system to ensure continued support.DCSQ-1
Checks: C-60759r1_chk

Microsoft support for Windows 2003 ended 14 July 2015. If Windows 2003 is installed on a system, this is a finding.

Fix: F-65489r1_fix

Upgrade Windows 2003 systems to a supported operating system.

a
The system does not generate an audit event when the audit log reaches a percent full threshold.
AU-5 - Low - CCI-000139 - V-4108 - SV-29728r1_rule
RMF Control
AU-5
Severity
Low
CCI
CCI-000139
Version
3.092
Vuln IDs
  • V-4108
Rule IDs
  • SV-29728r1_rule
When the audit log reaches a given percent full, an audit event is written to the security log. The event ID is 523 and is recorded as a success audit under the category of System. This option may be especially useful if the audit logs are set to be cleared manually. A recommended setting would be 90 percent.trueSystem AdministratorInformation Assurance OfficerECRR-1
Checks: C-32753r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (WarningLevel) Percentage threshold for the security event log at which the system will generate a warning” is not set to “90” or less, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Eventlog\Security\ Value Name: WarningLevel Value Type: REG_DWORD Value: 90 Documentable Explanation: If the system is configured to write to an audit server, or is configured to automatically archive full logs this should be documented with the IAO.

Fix: F-28831r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (WarningLevel) Percentage threshold for the security event log at which the system will generate a warning” to “90” or less.

a
The system must be configured to disable dead gateway detection.
CM-6 - Low - CCI-000366 - V-4109 - SV-29607r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.093
Vuln IDs
  • V-4109
Rule IDs
  • SV-29607r2_rule
Dead gateway detection allows switching to a backup gateway if a number of connections to a gateway are experiencing difficulty. An attacker could force internal traffic to be directed to a gateway outside the network if enabled. This setting applies to all network adapters, regardless of their individual settings.HKSystem AdministratorECSC-1
Checks: C-51791r3_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "MSS: (EnableDeadGWDetect) Allow automatic detection of dead network gateways (could lead to DoS)" is not set to "Disabled", this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: EnableDeadGWDetect Value Type: REG_DWORD Value: 0

Fix: F-53579r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (EnableDeadGWDetect) Allow automatic detection of dead network gateways (could lead to DoS)" to "Disabled".

a
The system is configured to allow IP source routing.
CM-6 - Low - CCI-000366 - V-4110 - SV-29359r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.094
Vuln IDs
  • V-4110
Rule IDs
  • SV-29359r1_rule
Protects against IP source routing spoofing.HKSystem AdministratorECSC-1
Checks: C-282r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)” is not set to “Highest protection, source routing is completely disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: DisableIPSourceRouting Value Type: REG_DWORD Value: 2

Fix: F-5713r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)” to “Highest protection, source routing is completely disabled”.

a
The system is configured to redirect ICMP.
CM-6 - Low - CCI-000366 - V-4111 - SV-29362r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.095
Vuln IDs
  • V-4111
Rule IDs
  • SV-29362r1_rule
When disabled, forces ICMP to be routed via shortest path first.HKSystem AdministratorECSC-1
Checks: C-286r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes” is not set to “Disabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: EnableICMPRedirect Value Type: REG_DWORD Value: 0

Fix: F-5715r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes” to “Disabled”.

a
The system is configured to detect and configure default gateway addresses.
SC-5 - Low - CCI-002385 - V-4112 - SV-29365r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
3.104
Vuln IDs
  • V-4112
Rule IDs
  • SV-29365r1_rule
Enables or disables the Internet Router Discovery Protocol (IRDP) used to detect and configure Default Gateway addresses on the computer.HKSystem AdministratorECSC-1
Checks: C-321r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” is not set to “Disabled”, then this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Subkey: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: PerformRouterDiscovery Value Type: REG_DWORD Value: 0

Fix: F-5730r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” to “Disabled”.

a
The system is configured for a greater keep-alive time than recommended.
SC-5 - Low - CCI-002385 - V-4113 - SV-29608r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
3.097
Vuln IDs
  • V-4113
Rule IDs
  • SV-29608r1_rule
Controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact.HKSystem AdministratorECSC-1
Checks: C-299r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds” is not set to “300000 or 5 minutes (recommended)” or less, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: KeepAliveTime Value Type: REG_DWORD Value: 300000

Fix: F-28004r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds” to “300000 or 5 minutes (recommended)” or less.

a
The system is configured to allow name-release attacks.
SC-5 - Low - CCI-002385 - V-4116 - SV-29368r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
3.101
Vuln IDs
  • V-4116
Rule IDs
  • SV-29368r1_rule
Prevents a denial-of-service (DoS) attack against a WINS server. The DoS consists of sending a NetBIOS Name Release Request to the server for each entry in the servers cache, causing a response delay in the normal operation of the servers WINS resolution capability.HKSystem AdministratorECSC-1
Checks: C-311r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (NoNameReleaseOnDemand) Allow computer to ignore NetBIOS name release requests except from WINS servers” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netbt\Parameters\ Value Name: NoNameReleaseOnDemand Value Type: REG_DWORD Value: 1 Note: The NetBIOS name for the system will no longer appear under ‘My Network Places’.

Fix: F-5723r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (NoNameReleaseOnDemand) Allow computer to ignore NetBIOS name release requests except from WINS servers” to “Enabled”.

a
The system is configured to allow SYN attacks.
SC-5 - Low - CCI-002385 - V-4117 - SV-29611r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
3.102
Vuln IDs
  • V-4117
Rule IDs
  • SV-29611r1_rule
Adjusts retransmission of TCP SYN-ACKs. When enabled, connection responses time out more quickly in the event of a SYN DoS attack.HKSystem AdministratorECSC-1
Checks: C-314r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (SynAttackProtect) Syn attack protection level (protects against DoS)” is not set to “Connections time out sooner if a SYN attack is detected”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: SynAttackProtect Value Type: REG_DWORD Value: 1

Fix: F-5725r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (SynAttackProtect) Syn attack protection level (protects against DoS)” to “Connections time out sooner if a SYN attack is detected”.

b
Domain Controllers must require LDAP signing.
SC-8 - Medium - CCI-002418 - V-4407 - SV-41835r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
AD.3106_2003
Vuln IDs
  • V-4407
Rule IDs
  • SV-41835r2_rule
Unsigned network traffic is susceptible to man-in-the-middle attacks where an intruder captures packets between the server and the client and modifies them before forwarding them to the client. In the case of an LDAP server, this means that an attacker can cause a client to make decisions based on false records from the LDAP directory. You can lower the risk of an attacker pulling this off in a corporate network by implementing strong physical security measures to protect the network infrastructure. Furthermore, implementing Internet Protocol security (IPSec) authentication header mode (AH), which performs mutual authentication and packet integrity for Internet Protocol (IP) traffic, can make all types of man-in-the-middle attacks extremely difficult.trueHKSystem AdministratorECSC-1
Checks: C-51797r3_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "Domain Controller: LDAP Server signing requirements" is not set to "Require signing", this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\NTDS\Parameters\ Value Name: LDAPServerIntegrity Value Type: REG_DWORD Value: 2 Documentable Explanation: If LDAP Signing is not supported by a client, service or application, this must be documented with the IAO with supporting vendor information.

Fix: F-53591r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain controller: LDAP server signing requirements" to "Require signing".

a
The domain controller must be configured to allow reset of machine account passwords.
CM-6 - Low - CCI-000366 - V-4408 - SV-41842r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
AD.3107_2003
Vuln IDs
  • V-4408
Rule IDs
  • SV-41842r1_rule
Enabling this setting on all domain controllers in a domain prevents domain members from changing their computer account passwords. If these passwords are weak or compromised, the inability to change them may leave these computers vulnerable. HKSystem AdministratorECSC-1
Checks: C-32084r1_chk

1. Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. 2. Navigate to Local Policies and select Security Options. 3. If the value for “Domain Controller: Refuse machine account password changes” is set to "Enabled", then this is a finding.

Fix: F-28441r1_fix

Set the value for “Domain Controller: Refuse machine account password changes” to “Disabled”. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RefusePasswordChange Value Type: REG_DWORD Value: 0

a
TCP connection response retransmissions are not controlled.
SC-5 - Low - CCI-002385 - V-4437 - SV-29612r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
5.097
Vuln IDs
  • V-4437
Rule IDs
  • SV-29612r1_rule
In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and no longer is able to respond to legitimate requests. Microsoft cautions that setting this to “No retransmission, half-open connections dropped after 3 seconds” may cause legitimate connection attempts from distant clients to fail due to time-out. HKSystem AdministratorECSC-1
Checks: C-2235r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (TcpMaxConnectResponseRetransmissions) SYN-ACK retransmissions when a connection is not acknowledged” is not set to “3 & 6 seconds, half-open connections dropped after 21 seconds”, “3 seconds, half-open connections dropped after 9 seconds” or “No retransmission, half-open connections dropped after 3 seconds”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: TcpMaxConnectResponseRetransmissions Value Type: REG_DWORD Value: 2 (3 & 6 seconds), 1 (3 seconds), 0 (No retransmission) Warning: Microsoft cautions that setting this to “No retransmission, half-open connections dropped after 3 seconds” may cause legitimate connection attempts from distant clients to fail due to time-out.

Fix: F-6084r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (TcpMaxConnectResponseRetransmissions) SYN-ACK retransmissions when a connection is not acknowledged” to “3 & 6 seconds, half-open connections dropped after 21 seconds”, “3 seconds, half-open connections dropped after 9 seconds” or “No retransmission, half-open connections dropped after 3 seconds”.

a
TCP data retransmissions are not controlled.
SC-5 - Low - CCI-002385 - V-4438 - SV-29371r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
5.098
Vuln IDs
  • V-4438
Rule IDs
  • SV-29371r1_rule
In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and no longer is able to respond to legitimate requests. HKSystem AdministratorECSC-1
Checks: C-32757r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (TcpMaxDataRetransmissions) How many times unacknowledged data is retransmitted (3 recommended, 5 is the default)” is not set to “3” or less, this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: TcpMaxDataRetransmissions Value Type: REG_DWORD Value: 3

Fix: F-28832r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (TcpMaxDataRetransmissions) How many times unacknowledged data is retransmitted (3 recommended, 5 is the default)” to “3” or less.

a
This check verifies that Windows is configured to have password protection take effect within a limited time frame when the screen saver becomes active.
CM-6 - Low - CCI-000366 - V-4442 - SV-29374r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
5.102
Vuln IDs
  • V-4442
Rule IDs
  • SV-29374r1_rule
Allowing more than several seconds makes the computer vulnerable to a potential attack from someone walking up to the console to attempt to log onto the system before the lock takes effect.An issue was identified where the Security Options files and analysis templates included the registry value for this setting as a Dword type however it should have been a String value. This has been reported to Microsoft and the Security Options files and analysis templates included with the checklists have been corrected as of the December 2008 release.HKSystem AdministratorPESL-1
Checks: C-32758r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (ScreenSaverGracePeriod) The time in seconds before the screen saver grace period expires (0 recommended)” is not set to “5” or less, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: ScreenSaverGracePeriod Value Type: REG_SZ Value: 5 (or less)

Fix: F-28833r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (ScreenSaverGracePeriod) The time in seconds before the screen saver grace period expires (0 recommended)” to “5” or less.

c
Unauthorized registry paths and sub-paths are remotely accessible.
SC-4 - High - CCI-001090 - V-4443 - SV-4443r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.108
Vuln IDs
  • V-4443
Rule IDs
  • SV-4443r1_rule
The registry is a database for computer configuration information, much of which is sensitive. An attacker could use this to facilitate unauthorized activities. To reduce the risk of this happening, it is also lowered by the fact that the default ACLs assigned throughout the registry are fairly restrictive and they help to protect it from access by unauthorized users. System AdministratorECCD-1, ECCD-2
Checks: C-347r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Remotely accessible registry paths and sub-paths” contains entries besides the following, then this is a finding: Software\Microsoft\OLAP Server Software\Microsoft\Windows NT\CurrentVersion\Perflib Software\Microsoft\Windows NT\CurrentVersion\Print Software\Microsoft\Windows NT\CurrentVersion\Windows System\CurrentControlSet\Control\ContentIndex System\CurrentControlSet\Control\Print\Printers System\CurrentControlSet\Control\Terminal Server System\CurrentControlSet\Control\Terminal Server\UserConfig System\CurrentControlSet\Control\Terminal Server\DefaultUserConfiguration System\CurrentControlSet\Services\Eventlog System\CurrentControlSet\Services\Sysmonlog The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\SecurePipeServers\Winreg\AllowedPaths\ Value Name: Machine Value Type: REG_MULTI_SZ Value: As defined in policy above Note: Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the IAO, this would not be a finding. Documentation should contain supporting information from the vendor's instructions.

Fix: F-5739r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Remotely accessible registry paths and sub-paths” as specified in the Check section.

b
Users must enter a password to access private keys.
IA-5 - Medium - CCI-000186 - V-4444 - SV-4444r3_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000186
Version
3.109
Vuln IDs
  • V-4444
Rule IDs
  • SV-4444r3_rule
Configuring this setting so that users must provide a password (distinct from their domain password) every time they use a key makes it more difficult for an attacker to access locally stored user keys, even if the attacker takes control of the user's computer and determines their logon password. HKSystem AdministratorIAIA-2, IAIA-1
Checks: C-32759r2_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System cryptography: Force strong key protection for user keys stored in the computer” is not set to “User must enter a password each time they use a key”, this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Cryptography\ Value Name: ForceKeyProtection Value Type: REG_DWORD Value: 2

Fix: F-28834r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System cryptography: Force strong key protection for user keys stored in the computer” to “User must enter a password each time they use a key”.

a
Optional Subsystems are permitted to operate on the system.
CM-7 - Low - CCI-000381 - V-4445 - SV-4445r1_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
3.110
Vuln IDs
  • V-4445
Rule IDs
  • SV-4445r1_rule
The POSIX subsystem is an Institute of Electrical and Electronic Engineers (IEEE) standard that defines a set of operating system services. The POSIX Subsystem is required if the server supports applications that use that subsystem. The subsystem introduces a security risk relating to processes that can potentially persist across logins. That is, if a user starts a process and then logs out, there is a potential that the next user who logs in to the system could access the previous users process. This is dangerous because the process started by the first user may retain that users system privileges; anything the second user does with that process will be performed with the privileges of the first user. trueHKSystem AdministratorECSC-1
Checks: C-349r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System Settings: Optional Subsystems” has entries listed, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Control\Session Manager\Subsystems\ Value Name: Optional Value Type: REG_MULTI_SZ Value: (Blank) Documentable: If an optional subsystem such as POSIX is required, then this needs to be documented with the IAO.

Fix: F-5741r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System Settings: Optional Subsystems” to “Blank” (Configured with no entries).

b
Software certificate restriction policies are not enforced.
CM-6 - Medium - CCI-000366 - V-4446 - SV-4446r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.111
Vuln IDs
  • V-4446
Rule IDs
  • SV-4446r1_rule
Software restriction policies help to protect users and computers from executing unauthorized code such as viruses and Trojans horses. HKSystem AdministratorECSC-1
Checks: C-350r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “System Settings: Use Certificate Rules on Windows Executables for Software Restriction Policies” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers\ Value Name: AuthenticodeEnabled Value Type: REG_DWORD Value: 1

Fix: F-5742r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “System Settings: Use Certificate Rules on Windows Executables for Software Restriction Policies” to “Enabled”.

b
The Terminal Server does not require secure RPC communication.
AC-17 - Medium - CCI-001453 - V-4447 - SV-29108r1_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-001453
Version
5.103
Vuln IDs
  • V-4447
Rule IDs
  • SV-29108r1_rule
Allowing unsecure RPC communication exposes the server to man in the middle attacks and data disclosure attacks. A man in the middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal sensitive information. HKSystem AdministratorECSC-1
Checks: C-1934r1_chk

If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fEncryptRPCTraffic Type: REG_DWORD Value: 1

Fix: F-5938r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Encryption and Security -> RPC Security Policy “Secure Server (Require Security)” to “Enabled”.

b
Group Policy objects are not reprocessed if they have not changed.
CM-6 - Medium - CCI-000366 - V-4448 - SV-29377r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.112
Vuln IDs
  • V-4448
Rule IDs
  • SV-29377r1_rule
Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again. HKSystem AdministratorECSC-1
Checks: C-32762r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: Software\Policies\Microsoft\Windows\Group Policy\{35378EAC-683F-11D2-A89A-00C04FBBCFA2} Value Name: NoGPOListChanges Type: REG_DWORD Value: 0

Fix: F-28955r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy “Registry Policy Processing” to “Enabled” and select the option “Process even if the Group Policy objects have not changed”.

b
A Windows system has an incorrect default DCOM authorization level.
CM-6 - Medium - CCI-000366 - V-6825 - SV-29737r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.107
Vuln IDs
  • V-6825
Rule IDs
  • SV-29737r2_rule
The DCOM default authentication level has been detected to be below the required setting. If the authentication level is None, then any user can access any object on the system without authentication.System AdministratorECSC-1
Checks: C-40668r1_chk

Open a command prompt. Execute “Dcomcnfg.exe”. In the “Component Services” window, navigate to Component Services -> Computer -> My Computer Right-click “My Computer” and select “Properties”. Select the “Default Properties” tab. If the “Default Authentication Level” is set to “None” or “Call”, this is a finding.

Fix: F-36078r1_fix

Fortify DCOMs default permissions. This should be thoroughly tested to verify DCOM objects continue to function under tightened security. Open a command prompt. Execute “Dcomcnfg.exe”. In the “Component Services” window, navigate to Component Services -> Computer -> My Computer Right-click “My Computer” and select “Properties”. Select the “Default Properties” tab. Select a “Default Authentication Level” other than “None” or “Call”. For sensitive systems, an authentication level of “Packet Privacy” is recommended. Click OK.

b
A Windows system has a writable DCOM configuration.
CM-6 - Medium - CCI-000366 - V-6826 - SV-29542r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.108
Vuln IDs
  • V-6826
Rule IDs
  • SV-29542r1_rule
A registry key for a valid DCOM object has access permissions that allow non-administrator users to change the security settings. If DCOM security settings are inadvertently set to a low level of security, it may be possible for an attacker to execute code, possibly under the user context of the console user.In addition, an attacker could change the security on the object to allow for a future attack, such as setting the object to run as Interactive User. The Interactive User runs the application using the security context of the user currently logged on to the computer. If this option is selected and the user is not logged on, then the application will not start.HKSystem AdministratorECSC-1
Checks: C-3103r1_chk

·Using the Registry Editor, go to the following Registry key: HKLM\Software\Classes\Appid(inherited by all subkeys) Administrators Full SYSTEM Full Users Read ·If any account other than Administrators and System has greater than “read” access, then this would be a finding. ·Select each subkey and verify that it is inheriting the same permissions. ·If any subkey has permissions that are less strict than those above, then this would be a finding.

Fix: F-6513r1_fix

Fortify DCOMs AppId permissions. Any changes should be thoroughly tested so objects continue to function under tightened security. - Open the Registry Editor. - Navigate to HKEY_LOCAL_MACHINE\Software\Classes\Appid. - Select the application that generated this vulnerability. - Set the permissions for standard (non-privileged) user accounts or groups to Read only.

b
DCOM calls are not executed under the security context of the calling user.
CM-6 - Medium - CCI-000366 - V-6830 - SV-29739r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.112
Vuln IDs
  • V-6830
Rule IDs
  • SV-29739r1_rule
DCOM calls are executed under the security context of the calling user by default. If the RunAs key has been altered, the DCOM calls can be executed under the user context of the currently logged in user, or as a third user. If present, the RunAs value tells the COM Service Control Manager (SCM) the name of the account under which the server is to be activated. In addition to the account name, the COM SCM must also have the password of the account. The result of a successful logon is a security context (token) for the named account that is used as the primary token for the new COM server process. Administrators should not use this method in the evaluated configuration if accountability is required, since accountability cannot be enforced. RunAs values will be removed. System AdministratorECSC-1
Checks: C-3107r1_chk

·Using the Registry Editor, go to the following Registry key: HKLM\Software\Classes\Appid ·View each subkey in turn and verify that the RunAs value has not been added. ·If any subkey has a RunAs value, then this would be a finding. Note: Windows components that have default Runas values such as Interactive User do not need to be changed. Windows components that have had a Runas value added or changed and non-Windows COM objects added to the system with Runas values need to be reviewed.

Fix: F-6517r1_fix

Remove any RunAs values from DCOM objects in the Registry.

b
Outgoing secure channel traffic is not encrypted or signed.
SC-8 - Medium - CCI-002418 - V-6831 - SV-29380r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.113
Vuln IDs
  • V-6831
Rule IDs
  • SV-29380r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.HKSystem AdministratorECCT-2, ECCT-1
Checks: C-3108r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireSignOrSeal Value Type: REG_DWORD Value: 1

Fix: F-6518r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Digitally encrypt or sign secure channel data (always)” to “Enabled”.

b
The Windows Server SMB client is not enabled to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-6832 - SV-29383r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.114
Vuln IDs
  • V-6832
Rule IDs
  • SV-29383r1_rule
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.If the environment is a mixed one, with down-level OSs, or maintains trusts with down-level OSs, then this to the required setting could cause compatibility problems. HKSystem AdministratorECSC-1
Checks: C-3110r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Client: Digitally sign communications (always)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-6519r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Client: Digitally sign communications (always)” to “Enabled”.

b
The Windows Server SMB server is not enabled to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-6833 - SV-29390r1_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
3.115
Vuln IDs
  • V-6833
Rule IDs
  • SV-29390r1_rule
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to always perform SMB packet signing.If the environment is a mixed one, with down-level OSs, or maintains trusts with down-level OSs, then configuring this to the required setting could cause compatibility problems. HKSystem AdministratorECSC-1
Checks: C-3112r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Microsoft Network Server: Digitally sign communications (always)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-6520r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Microsoft Network Server: Digitally sign communications (always)” to “Enabled”.

c
Named Pipes and Shares can be accessed anonymously.
SC-4 - High - CCI-001090 - V-6834 - SV-7078r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
3.116
Vuln IDs
  • V-6834
Rule IDs
  • SV-7078r1_rule
This is a Category 1 finding because of the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. When this setting is disabled, Network shares can be accessed by any network user. This could lead to the exposure or corruption of sensitive data.HKSystem AdministratorECSC-1
Checks: C-3114r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Network access: Restrict anonymous access to Named Pipes and Shares” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RestrictNullSessAccess Value Type: REG_DWORD Value: 1

Fix: F-6521r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network access: Restrict anonymous access to Named Pipes and Shares” to “Enabled”.

b
For systems utilizing a logon ID as the individual identifier, passwords must be a minimum of 14 characters in length.
IA-5 - Medium - CCI-000205 - V-6836 - SV-29387r2_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000205
Version
4.013
Vuln IDs
  • V-6836
Rule IDs
  • SV-29387r2_rule
Information systems not protected with strong password schemes including passwords of minimum length provide the opportunity for anyone to crack the password thus gaining access to the system and causing the device, information, or the local network to be compromised or a denial of service. Strong passwords may invite users to write down the passwords. Ensure that all users store passwords in a secured location.HKSystem AdministratorInformation Assurance OfficerIAIA-1, IAIA-2
Checks: C-51793r2_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies -> Password Policy. If the value for the "Minimum password length" is less than 14 characters, this is a finding.

Fix: F-53585r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Minimum password length" to at least "14" characters.

b
To the extent system capabilities permit, system mechanisms will be implemented to enforce automatic expiration of passwords and to prevent reuse.
IA-5 - Medium - CCI-000199 - V-6840 - SV-29394r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
4.026
Vuln IDs
  • V-6840
Rule IDs
  • SV-29394r1_rule
Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered or cracked. The following accounts are exempt from this check: Built-in Administrator Account Application accounts Domain accounts requiring smart card (CAC)trueEnforcing passwords to be changed at regular intervals may invite users to write down the passwords each time they are required to make a change. Ensure all users store passwords in a secured location.System AdministratorInformation Assurance OfficerIAIA-1, IAIA-2
Checks: C-38498r1_chk

Verify all account passwords expire. The following are exempt from this requirement: Built-in Administrator account Application accounts Domain accounts requiring smart card (CAC) Using the DUMPSEC utility: Select “Dump Users as Table” from the “Report” menu. Select the available fields in the following sequence, and click on the “Add” button for each entry: UserName SID PswdRequired PswdExpires PswdLastSetTime LastLogonTime AcctDisabled Groups If any accounts, other than the exceptions noted, have a “No” in the “PswdExpires” column, then this is a finding. Note: The following command can be used on Windows Active Directory if DumpSec cannot be run: Open a Command Prompt. Enter “Dsquery user -limit 0 | Dsget user -dn -pwdneverexpires”. This will return a list of User Accounts with Yes/No for Pwdneverexpires. If any accounts, other than the exceptions noted, have "Yes", then this is a finding. The results can be directed to a text file by adding “> filename.txt” at the end of the command. Documentable Explanation: Accounts meeting the requirements for allowable exceptions should be documented with the IAO.

Fix: F-6527r1_fix

Configure all information systems to expire passwords.

b
Auditing must be configured as required.
AU-12 - Medium - CCI-000172 - V-6850 - SV-50284r1_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
4.008-DC
Vuln IDs
  • V-6850
Rule IDs
  • SV-50284r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior.HKHKSystem AdministratorInformation Assurance OfficerECAR-2, ECAR-3
Checks: C-46040r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Expand the "Local Policies" object and select "Audit Policy". Compare the settings in the Policy window with the following. If system does not audit the events listed below, this is a finding. Audit account logon events - Success, Failure Audit account management - Success, Failure Audit directory service access - Failure Audit logon events - Success, Failure Audit object access - Failure Audit policy change - Success Audit privilege use - Failure Audit system events - Success

Fix: F-43430r2_fix

Configure the system to audit the following categories as outlined. Audit account logon events - Success, Failure Audit account management - Success, Failure Audit directory service access - Failure Audit logon events - Success, Failure Audit object access - Failure Audit policy change - Success Audit privilege use - Failure Audit system events - Success

c
DoD information system access will require the use of a password.
IA-2 - High - CCI-000764 - V-7002 - SV-29547r1_rule
RMF Control
IA-2
Severity
High
CCI
CCI-000764
Version
4.017
Vuln IDs
  • V-7002
Rule IDs
  • SV-29547r1_rule
The lack of password protection enables anyone to gain access to the information system, which opens a backdoor opportunity for intruders to compromise the system as well as other resources within the same administrative domain.For a DISABLED account(s) with a blank or null password, classify/downgrade this finding to a Severity Code II finding.System AdministratorIAIA-1, IAIA-2
Checks: C-38507r1_chk

Verify all accounts require passwords. The following accounts may be excluded from this requirement: Domain accounts requiring smart card (CAC). Using the DUMPSEC utility: Select “Dump Users as Table” from the “Report” menu. Select the available fields in the following sequence, and click on the “Add” button for each entry: UserName SID PswdRequired PswdExpires LastLogonTime AcctDisabled Groups If any accounts, other than the exception noted, have a “No” in the “PswdRequired” column, then this is a finding. Note: Some built-in or application-generated accounts (e.g., Guest, IWAM_, IUSR, etc.) will not have this flag set, even though there are passwords present. It can be set by entering the following on a command line: “Net user <account_name> /passwordreq:yes”. Severity Override: For a DISABLED account(s) with a blank or null password, classify/downgrade this finding to a Category II finding.

Fix: F-6581r1_fix

Configure all DoD information systems to require passwords to gain access. The password required flag can be set by entering the following on a command line: “Net user <account_name> /passwordreq:yes”.

c
Access control permissions on the AD database, log, and work files must conform to the required guidance.
AC-6 - High - CCI-002235 - V-8316 - SV-15601r3_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
DS00.0120_2003
Vuln IDs
  • V-8316
Rule IDs
  • SV-15601r3_rule
Improper access permissions for directory data files could allow unauthorized users to read, modify, or delete directory data. The severity category for findings resulting from this check must be determined based on the content of the file involved. -- If any file with improper permissions includes identification or authentication data (e.g., accounts, passwords, or password hash data) that is used by systems to determine access control, then the severity is category I. -- If any files with improper permissions include other directory information (i.e., names, titles, or e mail addresses), then the severity is category II. -- If the content of the files with improper permissions is unknown, then the severity is category I.System AdministratorECCD-1, ECCD-2, ECAN-1
Checks: C-40772r1_chk

I. AD Database, Log, and Work Files 1. Use Registry Editor to navigate to HKLM\System\CurrentControlSet\Services\NTDS\Parameters. 2. Note the values for: -- DSA Database file -- Database log files path -- DSA Working Directory. 3. Navigate to the directory locations using Windows Explorer. 4. Verify the ACLs of the AD database, log, and work files with the following: AD Database, Log, and Work Files Permissions: ...\ntds.dit :Administrators, SYSTEM : Full Control (F) ...\edb*.log, ...\res*.log :Administrators, SYSTEM : Full Control (F) ...\temp.edb, ...\edb.chk :Administrators, SYSTEM : Full Control (F) [Note: The directory in which these files reside (usually ...\NTDS) may have permissions defined for CREATOR OWNER and Local Service, but these permissions apply at the directory level only, not to the individual files identified here.] 5. If the permissions are not at least as restrictive as required, then this is a finding.

Fix: F-7973r1_fix

Ensure the access control permissions on the AD database, log, and work files are set as follows: ...\ntds.dit :Administrators, SYSTEM : Full Control (F) ...\edb*.log, ...\res*.log :Administrators, SYSTEM : Full Control (F) ...\temp.edb, ...\edb.chk :Administrators, SYSTEM : Full Control (F)

b
Data files owned by users must be on a different logical partition from the directory server data files.
SC-2 - Medium - CCI-001082 - V-8317 - SV-54934r1_rule
RMF Control
SC-2
Severity
Medium
CCI
CCI-001082
Version
DS00.1190_2003
Vuln IDs
  • V-8317
Rule IDs
  • SV-54934r1_rule
When directory service data files, especially for directories used for identification, authentication, or authorization, reside on the same logical partition as user-owned files, the directory service data may be more vulnerable to unauthorized access or other availability compromises. Directory service and user-owned data files sharing a partition may be configured with less restrictive permissions in order to allow access to the user data. The directory service may be vulnerable to a denial of service attack when user-owned files on a common partition are expanded to an extent preventing the directory service from acquiring more space for directory or audit data.System AdministratorDCSP-1
Checks: C-48685r2_chk

Refer to the AD database location obtained in check V-8316. Note the logical drive (e.g., C:) on which the files are located. Determine if the server is currently providing file sharing services to users with the following command. Enter "net share" at a command prompt. Note the logical drive(s) or file system partition for any site-created data shares. Ignore all system shares (e.g., Windows NETLOGON, SYSVOL, and administrative shares ending in $). User shares that are hidden (ending with $) should not be ignored. If user shares are located on the same logical partition as the directory server data files, this is a finding.

Fix: F-47808r2_fix

Ensure files owned by users are stored on a different logical partition then the directory server data files.

b
Directory server directories and files must be configured with required permissions.
AC-6 - Medium - CCI-002235 - V-8320 - SV-31549r3_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
DS00.1150_AD
Vuln IDs
  • V-8320
Rule IDs
  • SV-31549r3_rule
Improper access permissions for directory server program (executable) and configuration files could allow unauthorized and malicious users to read, modify, or delete those files and change the way a directory server operates. This could lead to a compromise of the confidentiality, availability, and integrity of directory data. Some administration tool packages (such as the Windows Support Tools) include programs designed to perform updates on directory configuration and database data. Even though the directory data should be protected through file and object access permissions, allowing unauthorized access to administrative programs provides a potential attacker with tools that are already installed in the environment.System AdministratorDCSL-1
Checks: C-14106r1_chk

This check examines only the Windows Support Tools. If none of the tools are installed, then this check is not applicable. 1. Start Windows Explorer. 2. Right-click the “My Computer” item and select “Search…” 3. Type “Support" in the file name field. 4. Select “Local Hard Drives” in the “Look in:” field. 5. Click the Search [or Search Now] button. 6. Record the location for the “Support Tools” directory. The SA may have installed the Support Tools under an alternate name. If the default directory is not found, ask the SA. 7. If the directory is not found and the SA confirms that the Support Tools are not installed, then this check is not applicable. 8. Using the recorded location, compare the current ACL of the Support Tools directory to the following: Windows Support Tools Permissions: ...\Support Tools :Administrators, SYSTEM :Full Control (F) : [IAO-approved users \ user groups] :Read, Read &amp; Execute, List Folder Contents 9. If the folder permissions are not at least as restrictive as required, then this is a finding.

Fix: F-28705r1_fix

Configure the directory service as follows: Windows Support Tools Permissions: ...\Support Tools :Administrators, SYSTEM :Full Control (F) : [IAO-approved users \ user groups] :Read, Read & Execute, List Folder Contents

b
Time synchronization must be enabled on the domain controller.
AU-8 - Medium - CCI-001891 - V-8322 - SV-54935r1_rule
RMF Control
AU-8
Severity
Medium
CCI
CCI-001891
Version
DS00.0150_2003
Vuln IDs
  • V-8322
Rule IDs
  • SV-54935r1_rule
When a directory service using multi-master replication (such as AD) executes on computers that do not have synchronized time, directory data may be corrupted or updated invalidly. The lack of synchronized time could lead to audit log data that is misleading, inconclusive, or unusable. In cases of intrusion, this may invalidate the audit data as a source of forensic evidence in an incident investigation. In AD, the lack of synchronized time could prevent clients from logging on or accessing server resources as a result of Kerberos requirements related to time variance.System AdministratorECTM-1, ECTM-2
Checks: C-48689r3_chk

Determine if a time synchronization tool has been implemented on the Windows domain controller. If the Windows Time Service is used, verify the following registry values. If they are not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient\ Value Name: Enabled Type: REG_DWORD Value: 1 Registry Path: \System\CurrentControlSet\Services\W32Time\Parameters\ Value Name: Type Type: REG_SZ Value: NT5DS (preferred), NTP, or Allsync If these Windows checks indicate a finding because the NtpClient is not enabled, determine if an alternate time synchronization tool is installed and enabled. If the Windows Time Service is not enabled and no alternate tool is enabled, this is a finding.

Fix: F-47812r3_fix

Ensure the Windows Time Service is configured as follows or install and enable another time synchronization tool. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient\ Value Name: Enabled Type: REG_DWORD Value: 1 Registry Path: \System\CurrentControlSet\Services\W32Time\ Parameters\ Value Name: Type Type: REG_SZ Value: NT5DS (preferred), NTP, or Allsync

a
The time synchronization tool must be configured to enable logging of time source switching.
CM-6 - Low - CCI-000366 - V-8324 - SV-54933r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
DS00.0151_2003
Vuln IDs
  • V-8324
Rule IDs
  • SV-54933r1_rule
When a time synchronization tool executes, it may switch between time sources according to network or server contention. If switches between time sources are not logged, it may be difficult or impossible to detect malicious activity or availability problems.System AdministratorECTM-1, ECTM-2
Checks: C-48682r2_chk

Verify logging is configured to capture time source switches. If the Windows Time Service is used, verify the following registry value. If it is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\W32Time\Config\ Value Name: EventLogFlags Type: REG_DWORD Value: 2 or 3 If another time synchronization tool is used, review the available configuration options and logs. If the tool has time source logging capability and it is not enabled, this is a finding.

Fix: F-47805r2_fix

Configure the time synchronization tool to log time source switching. If the Windows Time Service is used, configure the following registry value. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\W32Time\Config\ Value Name: EventLogFlags Type: REG_DWORD Value: 2 or 3

b
The directory server supporting (directly or indirectly) system access or resource authorization must run on a machine dedicated to that function.
SC-2 - Medium - CCI-001082 - V-8326 - SV-54936r1_rule
RMF Control
SC-2
Severity
Medium
CCI
CCI-001082
Version
DS00.1180_2003
Vuln IDs
  • V-8326
Rule IDs
  • SV-54936r1_rule
Executing application servers on the same host machine with a directory server may substantially weaken the security of the directory server. Web or database server applications usually require the addition of many programs and accounts increasing the attack surface of the computer. Some applications require the addition of privileged accounts providing potential sources of compromise. Some applications (such as MS Exchange) may require the use of network ports or services conflicting with the directory server. In this case, non-standard ports might be selected and this could interfere with intrusion detection or prevention services.System AdministratorDCSP-1
Checks: C-48691r2_chk

Run "services.msc" to display the Services console. Determine if any running services are application components. Examples of services indicating the presence of applications are: -DHCP Server for DHCP server -IIS Admin Service for IIS web server -Microsoft Exchange System Attendant for Exchange -MSSQLServer for SQL Server. If any application-related components have the "Started" status, this is a finding. Supplemental Notes: A Domain Name System (DNS) server integrated with the directory server (e.g., AD-integrated DNS) is an acceptable application. However, the DNS server must comply with the DNS STIG security requirements. Some directory servers utilize specialized web servers for administrative functions and databases for data management. These web and database servers are permitted as long as they are dedicated to directory server support and only administrative users have access to them.

Fix: F-47813r2_fix

Remove applications such as web, database, and email from the domain controller.

b
Windows services that are critical for directory server operation must be configured for automatic startup.
CM-6 - Medium - CCI-000366 - V-8327 - SV-54937r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
DS00.3260_2003
Vuln IDs
  • V-8327
Rule IDs
  • SV-54937r1_rule
Active Directory (AD) is dependent on several Windows services. If one or more of these services is not configured for automatic startup, AD functions may be partially or completely unavailable until the services are manually started. This could result in a failure to replicate data or to support client authentication and authorization requests.System AdministratorECTM-2, ECTM-1
Checks: C-48694r3_chk

Run "services.msc" to display the Services console. Verify the Startup Type for the following Windows services: - Distributed File System (may be disabled if site is not utilizing) - DNS Client - File Replication Service - Intersite Messaging - Kerberos Key Distribution Center - Net Logon - Windows Time (not required if another time synchronization tool is implemented to start automatically) If the Startup Type for any of these services is not Automatic, this is a finding.

Fix: F-47816r3_fix

Ensure the following services that are critical for directory server operation are configured for automatic startup. - Distributed File System (may be disabled if site is not utilizing) - DNS Client - File Replication Service - Intersite Messaging - Kerberos Key Distribution Center - Net Logon - Windows Time (not required if another time synchronization tool is implemented to start automatically)

a
The system is configured to allow the display of the last user name on the logon screen.
CM-6 - Low - CCI-000366 - V-11806 - SV-29397r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
3.119
Vuln IDs
  • V-11806
Rule IDs
  • SV-29397r1_rule
The user name of the last user to log onto a system will not be displayed. This eliminates half of the Userid/Password equation that an unauthorized person would need to log on.HKSystem AdministratorECSC-1
Checks: C-7791r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; Security Options. If the value for “Interactive logon: Do not display last user name” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DontDisplayLastUserName Value Type: REG_DWORD Value: 1

Fix: F-11088r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Interactive logon: Do not display last user name” to “Enabled”.

c
The Synchronize directory service data user right must be configured to include no accounts or groups (blank).
AC-6 - High - CCI-002235 - V-12780 - SV-54939r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
DS00.0210_2003
Vuln IDs
  • V-12780
Rule IDs
  • SV-54939r1_rule
A Windows account with the "Synchronize directory service data" right has the ability to read all information in the AD database. This bypasses the object access permissions that would otherwise restrict access to the data. The scope of access granted by this right is too broad for secure usage. Specific object permissions or other group membership assignments could be used to provide access on an appropriate scale.System AdministratorECCD-1, ECCD-2, ECAN-1, ECLP-1
Checks: C-48700r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -&gt; Computer Configuration -&gt; Windows Settings -&gt; Security Settings -&gt; Local Policies -&gt; User Rights Assignment. If any accounts or groups are granted the "Synchronize directory service data" user right, this is a finding.

Fix: F-47821r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Synchronize directory service data" to be defined but containing no entries (blank).

b
The system does not have a backup administrator account
CM-6 - Medium - CCI-000366 - V-14224 - SV-29744r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.121
Vuln IDs
  • V-14224
Rule IDs
  • SV-29744r2_rule
This check verifies that a backup administrator account has been created to ensure system availability in the event that no administrators are able or available to access the system. The built-in administrator account may be used for this purpose. The IAO will ensure the backup administrator account is stored in a secure location. System AdministratorInformation Assurance OfficerECPA-1
Checks: C-11570r1_chk

Interview the SA to determine if a backup administrator account exists and is stored with its password in a secure location.

Fix: F-13548r2_fix

Create and maintain a backup administrator account for emergency situations.

b
Administrator Passwords are changed when necessary.
CM-6 - Medium - CCI-000366 - V-14225 - SV-29748r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
3.122
Vuln IDs
  • V-14225
Rule IDs
  • SV-29748r1_rule
This check verifies that the passwords for the default and backup administrator accounts are changed at least annually or when any member of the administrative team leaves the organization. System AdministratorInformation Assurance OfficerECPA-1
Checks: C-11571r1_chk

Interview the SA or IAM to determine if the site has a policy that requires the default and backup admin passwords to be changed at least annually or when any member of the administrative team leaves the organization.

Fix: F-13549r1_fix

Define a policy for required password changes for the default and backup admin account.

b
Audit logs are archived to prevent loss.
CM-6 - Medium - CCI-000366 - V-14226 - SV-29751r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
1.032
Vuln IDs
  • V-14226
Rule IDs
  • SV-29751r2_rule
This check verifies that Audit logs are archived to ensure data is not being lost. Audit logs are retained for at least one year, systems containing source and methods intelligence (SAMI) will be retained for five years in accordance with DoD policy.System AdministratorECRR-1
Checks: C-11572r1_chk

Interview the SA to determine the process for archiving audit logs. Audit logs are retained for at least one year; on systems containing sources and methods intelligence (SAMI) logs will be retained for five years.

Fix: F-13550r1_fix

Define a process for archiving audit logs as required.

b
Terminal Services / Remote Desktop Service - Prevent password saving in the Remote Desktop Client
IA-11 - Medium - CCI-002038 - V-14247 - SV-29407r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
5.116
Vuln IDs
  • V-14247
Rule IDs
  • SV-29407r1_rule
This check verifies that the system is configured to prevent Users from saving passwords in the Remote Desktop Client.System AdministratorECSC-1
Checks: C-11593r1_chk

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: DisablePasswordSaving Type: REG_DWORD Value: 1

Fix: F-15528r1_fix

XP - Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services-> Client “Do not allow passwords to be saved” to “Enabled”.

b
IPv6 must be disabled until a deliberate transition strategy has been implemented.
CM-6 - Medium - CCI-000366 - V-14262 - SV-30297r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.050
Vuln IDs
  • V-14262
Rule IDs
  • SV-30297r2_rule
Any nodes’ interface with IPv6 enabled by default presents a potential risk of traffic being transmitted or received without proper risk mitigation strategy and is therefore, a serious security concern.System AdministratorECSC-1
Checks: C-52019r2_chk

Prior to transition, IPv6 must not be installed. The following registry key indicates the IPv6 protocol has been installed. If it exists, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Tcpip6 See S0-C1-imp-1 of The Department of National Intelligence/Department of Defense (DoD) Internet Protocol version 6 (IPv6) Information Assurance Guidance for Milestone Objective 3 for additional information.

Fix: F-53903r2_fix

Uninstall the IPv6 protocol until a deliberate transition strategy has been implemented.

b
Application account passwords length and change requirement
IA-5 - Medium - CCI-000205 - V-14271 - SV-29335r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000205
Version
4.018
Vuln IDs
  • V-14271
Rule IDs
  • SV-29335r1_rule
Setting application accounts to expire may cause applications to stop functioning. The site will have a policy that application account passwords manually generated and entered by a system administrator are changed at least annually or when a system administrator with knowledge of the password leaves the organization. Application/service account passwords will be at least 15 characters and follow complexity requirements for all passwords.System AdministratorInformation Assurance OfficerIAIA-1
Checks: C-11762r1_chk

The site should have a local policy to ensure that passwords for application/service accounts are at least 15 characters in length and meet complexity requirements for all passwords. Application/service account passwords manually generated and entered by a system administrator must be changed at least annually or whenever a system administrator that has knowledge of the password leaves the organization. Interview the system administrators on their policy for application/service accounts. If it does not meet the above requirements, this is a finding. Using the DUMPSEC utility: Select “Dump Users as Table” from the “Report” menu. Select the available fields in the following sequence, and click on the “Add” button for each entry: UserName SID PswdRequired PswdExpires PswdLastSetTime LastLogonTime AcctDisabled Groups If any application accounts listed in the Dumpsec user report have a date older than one year in the “PwsdLastSetTime” column, then this is a finding. Note: The following command can be used on Windows 2003/2008 Active Directory if DumpSec cannot be run: Open a Command Prompt. Enter “Dsquery user -limit 0 -o rdn -stalepwd 365”. This will return a list of User Accounts with passwords older the one year.

Fix: F-13613r1_fix

Create application/service account passwords that are at least 15 characters in length and meet complexity requirements. Change application/service account passwords that are manually generated and entered by a system administrator at least annually or whenever an administrator with knowledge of the password leaves the organization.

b
Separate, NSA-approved (Type 1) cryptography must be used to protect the directory data-in-transit for directory service implementations at a classified confidentiality level when replication data traverses a network cleared to a lower level than the data.
SC-13 - Medium - CCI-002450 - V-14783 - SV-54942r1_rule
RMF Control
SC-13
Severity
Medium
CCI
CCI-002450
Version
DS00.3281_2003
Vuln IDs
  • V-14783
Rule IDs
  • SV-54942r1_rule
Commercial-grade encryption does not provide adequate protection when the classification level of directory data in transit is higher than the level of the network or when sources and methods intelligence (SAMI) data is included.System AdministratorECCT-2, ECNK-2
Checks: C-48702r1_chk

With the assistance of the SA, NSO, or network reviewer as required, review the site network diagram(s) or documentation to determine the level of classification for the network(s) over which replication data is transmitted. Determine the classification level of the Windows domain controller. If the classification level of the Windows domain controller is higher than the level of the networks, review the site network diagram(s) and directory implementation documentation to determine if NSA-approved encryption is used to protect the replication network traffic. If the classification level of the Windows domain controller is higher than the level of the network traversed and NSA-approved encryption is not used, this is a finding.

Fix: F-47823r1_fix

Configure NSA-approved (Type 1) cryptography to protect the directory data in transit for directory service implementations at a classified confidentiality level that transfers replication data through a network cleared to a lower level than the data.

a
Anonymous access to the root DSE of a non-public directory must be disabled.
CM-6 - Low - CCI-000366 - V-14797 - SV-16172r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
DS00.3131_2003
Vuln IDs
  • V-14797
Rule IDs
  • SV-16172r2_rule
Allowing anonymous access to the root DSE data on a directory server provides potential attackers with a number of details about the configuration and data contents of a directory. For example, the namingContexts attribute indicates the directory space contained in the directory; the supportedLDAPVersion attribute indicates which versions of the LDAP protocol the server supports; and the supportedSASLMechanisms attribute indicates the names of supported authentication mechanisms. An attacker with this information may be able to select more precisely targeted attack tools or higher value targets. The following network controls allow the finding severity to be downgraded to not a finding since these measures lower the risk associated with anonymous access. Network hardware ports at the site are subject to 802.1x authentication or MAC address restrictions. Premise firewall or host restrictions prevent access to ports 389, 636, 3268, and 3269 from client hosts not explicitly identified by domain (.mil) or IP address.System AdministratorECAN-1, ECCD-1, ECCD-2
Checks: C-14089r2_chk

At this time, mark this check as a finding for all Windows domain controllers for sensitive or classified levels because Microsoft's AD or AD DS does not provide a method to restrict anonymous access to the root DSE on domain controllers. 1. With the assistance of the application SA, execute an LDAP browser utility that allows an account to be specified to access the directory. 2. Some client technologies may use default credentials if none are specified. The correct method must be used to ensure anonymous access is actually invoked. 3. On Windows systems, the “ldp.exe” utility from the Windows Support Tools can be used. See the directions for “ldp.exe” below. 4. Using the LDAP browser and specifying anonymous access (through the technology or tool-specific method), search the directory for the root DSE by specifying a null search base and a search scope of “base”. 5. If the LDAP browser displays information from the root DSE under anonymous access, then this is a finding. Supplemental Notes: - To use the “ldp.exe” utility to attempt an anonymous query of the root DSE: -- From the Connection menu item, select Connect. -- On the Connect dialog, enter the Server name and the correct port (usually 389 or 636), and select OK. -- From the Connection menu item, select Bind. -- Clear the User, Password, and Domain fields, the Domain checkbox, and select OK. -- Ensure that “ldap_simple_bind” and “Authenticated as dn:’Null’” is displayed. -- From the Browse menu item, select Search. -- On the Search dialog, select Options. -- On the Search Options dialog, clear the Attributes field and select OK. -- On the Search dialog, clear the Base DN field; select the Base checkbox; set Filter to “(objectclass=*)”; and select Run. -- Ensure that “Getting 1 entries:” is displayed. -- If root DSE attributes (such as namingContexts) are displayed, anonymous access to the root DSE is enabled.

Fix: F-45044r1_fix

Implement network protections to reduce the risk of anonymous access. Network hardware ports at the site are subject to 802.1x authentication or MAC address restrictions. Premise firewall or host restrictions prevent access to ports 389, 636, 3268, and 3269 from client hosts not explicitly identified by domain (.mil) or IP address.

c
Directory data (outside the root DSE) of a non-public directory must be configured to prevent anonymous access.
CM-6 - High - CCI-000366 - V-14798 - SV-16173r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
DS00.3130_2003
Vuln IDs
  • V-14798
Rule IDs
  • SV-16173r2_rule
To the extent that anonymous access to directory data (outside the root DSE) is permitted, read access control of the data is effectively disabled. If other means of controlling access (such as network restrictions) are compromised, there may be nothing else to protect the confidentiality of sensitive directory data. The following network controls allow the finding severity to be downgraded to a CAT II since these measures lower the risk associated with anonymous access. Network hardware ports at the site are subject to 802.1x authentication or MAC address restrictions. Premise firewall or host restrictions prevent access to ports 389, 636, 3268, and 3269 from client hosts not explicitly identified by domain (.mil) or IP address.System AdministratorECCD-2, ECAN-1, ECCD-1
Checks: C-14090r1_chk

1. With the assistance of the SA, execute an LDAP browser utility that allows an account to be specified to access the directory. 2. Some technologies may use default (logon) credentials if none are specified. The correct method must be used to ensure anonymous access is actually invoked. 3. On Windows systems, the “ldp.exe” utility from the Windows Support Tools or from the DISA IASE website) can be used. See the directions for “ldp.exe” below. 4. Using the LDAP browser and specifying anonymous access (through the tool-specific method), search the directory for the AD domain naming context. 5. The AD domain naming context is documented in the value of the defaultNamingContext attribute in the root DSE. Generally, this value is something like “dc=disaost,dc=mil”. 6. If the LDAP browser displays the AD domain naming context under anonymous access, then this is a finding. Supplemental Notes: - To use the “ldp.exe” utility to attempt an anonymous query of the root DSE: - From the Connection menu item, select Connect. - On the Connect dialog, enter the Server name and the correct port (usually 389 or 636), and select OK. - From the Connection menu item, select Bind. - Clear the User, Password, and Domain fields, the Domain checkbox, and select OK. - Ensure that “ldap_simple_bind” and “Authenticated as dn:’Null’” is displayed. - From the Browse menu item, select Search. - On the Search dialog, select Options. - On the Search Options dialog, clear the Attributes field and select OK. - On the Search dialog, enter the DN of the domain naming context (generally something like “dc=disaost,dc=mil”) in the Base DN field and select Run. - Ensure that “Getting n entries:” is displayed. - If attribute data is displayed, anonymous access is enabled to the domain naming context. For AD, there are multiple configuration items that could enable anonymous access. 1. For all Windows server OSs, changing the access permissions on the domain naming context object (from the secure defaults) could enable anonymous access. If the Check procedures indicate this is the cause, the process that was used to change the permissions should be reversed. This could have been through the Windows Support Tools ADSI Edit console (adsiedit.msc). 2. The dsHeuristics option is used. This is addressed in check V-8555 (DS.0230_AD) in the AD Forest STIG.

Fix: F-15005r1_fix

Configure directory data (outside the root DSE) of a non-public directory to prevent anonymous access.

c
Domain Controller PKI certificates must be issued by the DoD PKI or an approved External Certificate Authority (ECA).
IA-5 - High - CCI-000185 - V-14820 - SV-54947r1_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000185
Version
DS00.2140_2003
Vuln IDs
  • V-14820
Rule IDs
  • SV-54947r1_rule
A PKI implementation depends on the practices established by the Certificate Authority (CA) to ensure the implementation is secure. Without proper practices, the certificates issued by a CA have limited value in authentication functions. The use of multiple CAs from separate PKI implementations results in interoperability issues. If servers and clients do not have a common set of root CA certificates, they are not able to authenticate each other.If the certificates in use are issued by a CA authorized by the Components CIO, then this is a CAT II finding. System AdministratorIATS-2, IAKM-2, IATS-1, IAKM-1
Checks: C-48706r3_chk

Verify the source of the domain controller's server certificate. Run "mmc". Select "Add/Remove Snap-in" from the File menu. Click the "Add" button. Select "Certificates" and click the "Add" button. Select "Computer Account", click "Next". Select the appropriate option for "Select the computer you want this snap-in to manage.", click "Finish". Click "Close", then Click "OK". Select and expand the Certificates (Local Computer) entry in the left pane. Select and expand the Personal entry in the left pane. Select the Certificates entry in the left pane. In the right pane, examine the Issued By field for the certificate to determine the issuing CA. If the Issued By field of the PKI certificate being used by the domain controller does not indicate the issuing Certificate Authority (CA) is part of the DoD PKI or an approved ECA, this is a finding. There are multiple sources from which lists of valid DoD CAs and approved ECAs can be obtained: The Global Directory Service (GDS) website provides an online source. The address for this site is https://crl.gds.disa.mil. DoD Public Key Enablement (PKE) Engineering Support maintains the InstallRoot utility to manage DoD supported root certificates on Windows computers which includes a list of authorized CAs. The utility package can be downloaded from the PKI and PKE Tools page on IASE. http://iase.disa.mil/pki-pke/function_pages/tools.html

Fix: F-47827r1_fix

Obtain PKI certificates issued by the DoD PKI or an approved External Certificate Authority (ECA).

a
The directory service must be configured to terminate LDAP-based network connections to the directory server after five (5) minutes of inactivity.
SC-10 - Low - CCI-001133 - V-14831 - SV-16171r2_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
DS00.3370_2003
Vuln IDs
  • V-14831
Rule IDs
  • SV-16171r2_rule
The failure to terminate inactive network connections increases the risk of a successful attack on the directory server. The longer an established session is in progress, the more time an attacker has to hijack the session, implement a means to passively intercept data, or compromise any protections on client access. For example, if an attacker gains control of a client computer, an existing (already authenticated) session with the directory server could allow access to the directory. The lack of confidentiality protection in LDAP-based sessions increases exposure to this vulnerability.System AdministratorECTM-2, ECTM-1
Checks: C-46909r2_chk

Verify the value for MaxConnIdleTime. Open an elevated command prompt. Enter "ntdsutil". At the "ntdsutil:" prompt, enter "LDAP policies". At the "ldap policy:" prompt, enter "connections". At the "server connections:" prompt, enter "connect to server [host-name]". (Where [host-name] is the computer name of the domain controller.) At the "server connections:" prompt, enter "q". At the "ldap policy:" prompt, enter "show values". If the value for MaxConnIdleTime is greater than 300 (the value for five minutes) or it is not specified, this is a finding. Enter "q" at the "ldap policy:" and "ntdsutil:" prompts to exit. Alternately, Dsquery can be used to display MaxConnIdleTime: Open an elevated command prompt. Enter the following command (on a single line). dsquery * "cn=Default Query Policy,cn=Query-Policies,cn=Directory Service, cn=Windows NT,cn=Services,cn=Configuration,dc=[forest-name]" -attr LDAPAdminLimits The quotes are required and dc=[forest-name] is the fully qualified LDAP name of the domain being reviewed (e.g., dc=disaost,dc=mil).

Fix: F-45037r2_fix

Configure the directory service to terminate LDAP-based network connections to the directory server after five (5) minutes of inactivity. Open an elevated command prompt. Enter "ntdsutil". At the "ntdsutil:" prompt, enter "LDAP policies". At the "ldap policy:" prompt, enter "connections". At the "server connections:" prompt, enter "connect to server [host-name]". (Where [host-name] is the computer name of the domain controller.) At the "server connections:" prompt, enter "q". At the "ldap policy:" prompt, enter "Set MaxConnIdleTime to 300". Enter "Commit Changes" to save. Enter "Show values" to verify changes. Enter "q" at the "ldap policy:" and "ntdsutil:" prompts to exit.

b
For unclassified systems, the directory server must be configured to use the CAC, PIV compliant hardware token, or Alternate Logon Token (ALT) for authentication.
IA-2 - Medium - CCI-000765 - V-15488 - SV-28511r2_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000765
Version
AD.1033_2003
Vuln IDs
  • V-15488
Rule IDs
  • SV-28511r2_rule
CTO 07-015 requires PKI authentication. PKI is a two-factor authentication technique, thus it provides a higher level of trust in the asserted identity than use of the username/password authentication technique.System AdministratorIAIA-2, IAIA-1
Checks: C-32057r2_chk

Use the following procedure to check a sample of accounts. 1. Open Active Directory Users and Computers. 2. Select the Users node. 3. For each user account sampled, right-click and select Properties. 4. Select the Account tab. 5. View the setting in Account Options area. 6. Verify that the option “Smart card is required for interactive logon” is checked.

Fix: F-28436r2_fix

Configure all user accounts including administrator accounts in Active Directory to enable the option “Smart card is required for interactive logon”.

b
The HBSS McAfee Agent is not installed.
CM-6 - Medium - CCI-000366 - V-15505 - SV-29558r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
5.140
Vuln IDs
  • V-15505
Rule IDs
  • SV-29558r1_rule
System AdministratorECSC-1
Checks: C-34533r1_chk

Search for the file FrameworkService.exe (by default in the \Program Files\McAfee\Common Framework\ directory) and check that the version is 4 or above. AND verify that the Service "McAfee Framework Service" is running. If either of these conditions does not exist, then this is a finding.

Fix: F-30040r1_fix

Deploy the McAfee Agent as detailed in the CTO and in accordance with the DoD HBSS STIG.

b
Remove Software Certificate Installation Files
CM-6 - Medium - CCI-000366 - V-15823 - SV-29463r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
2.021
Vuln IDs
  • V-15823
Rule IDs
  • SV-29463r1_rule
This check verifies that software certificate installation files have been removed from a system.trueHKSystem AdministratorECSC-1
Checks: C-16140r1_chk

Search all drives for *.p12 and *.pfx files. If any files with these extensions exist, then this is a finding. Documentable Explanation: This does not apply to server-based applications that have a requirement for .p12 certificate files (e.g., Oracle Wallet Manager). Some applications create files with extensions of .p12 that are NOT certificate installation files. Removal from systems of non-certificate installation files are not required. These should be documented with the IAO.

Fix: F-15775r1_fix

Remove any certificate installation files found on a system. Note: This does not apply to server-based applications that have a requirement for .p12 certificate files (e.g., Oracle Wallet Manager)

c
Disallow AutoPlay/Autorun from Autorun.inf
CM-7 - High - CCI-001764 - V-17900 - SV-29583r1_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
2.022
Vuln IDs
  • V-17900
Rule IDs
  • SV-29583r1_rule
This registry key will prevent the autorun.inf from executing commands.System AdministratorECSC-1
Checks: C-20130r2_chk

In the Registry Editor, navigate to the following registry key: Registry Hive: HKEY_LOCAL_MACHINE Subkey: SOFTWARE\Microsoft\Windows NT\CurrentVersion\IniFileMapping\Autorun.inf Value Name: (Default) Type: REG_Sz Value: @SYS:DoesNotExist If the above listed registry value does not exist, then this is a finding.

Fix: F-18240r1_fix

Add the registry value as specified in the manual check.

c
Unapproved Users have access to Debug programs.
AC-6 - High - CCI-002235 - V-18010 - SV-29587r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
4.005
Vuln IDs
  • V-18010
Rule IDs
  • SV-29587r1_rule
This is a Category 1 finding as it provides access to the kernel with complete access to sensitive and critical operating system components.trueSystem AdministratorInformation Assurance OfficerECLP-1
Checks: C-20665r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; User Rights Assignment. If any user accounts, or groups, (to include administrators) are granted the “Debug programs” right, then this is a finding. If Administrators require this right for troubleshooting or application issues, it should be assigned on a temporary basis as needed. Documentable Explanation: Some applications may require this right to function such as the Windows 2003 Cluster service account. Any exception needs to be documented with the IAO. Acceptable forms of documentation include vendor published documents and application owner confirmation.

Fix: F-18585r1_fix

Configure the system to remove any accounts from the "Debug programs" user right.

c
Standard user accounts will only have Read permissions to the Winlogon registry key.
AC-6 - High - CCI-002235 - V-26070 - SV-33306r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
2.023
Vuln IDs
  • V-26070
Rule IDs
  • SV-33306r1_rule
Permissions on the Winlogon registry key should only allow privileged accounts to change registry values. If standard users have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system. System AdministratorECCD-1, ECCD-2
Checks: C-32949r1_chk

Navigate to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon. Verify the permissions assigned. Standard user accounts and groups will only have Read permissions to this registry key. If any standard user accounts or groups have greater permissions, this is a finding. The default permissions satisfy this requirement.

Fix: F-29102r1_fix

Assign only Read permissions for standard user accounts and groups to the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon registry key. This is the default configuration.

a
The Windows dialog box title for the legal banner must be configured.
AC-8 - Low - CCI-000048 - V-26359 - SV-34587r2_rule
RMF Control
AC-8
Severity
Low
CCI
CCI-000048
Version
3.014
Vuln IDs
  • V-26359
Rule IDs
  • SV-34587r2_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.System AdministratorECWM-1
Checks: C-40786r3_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; Security Options. If the value for “Interactive Logon: Message title for users attempting to log on” is not set to “DoD Notice and Consent Banner”, “US Department of Defense Warning Statement”, or a site defined equivalent, this is a finding. If a site defined title is used, it can in no case contravene or modify the language of the banner text required in V-1089. Automated tools may only search for the titles defined above. If a site defined title is used, a manual review will be required. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LegalNoticeCaption Value Type: REG_SZ Value: See message title above

Fix: F-36225r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options “Interactive Logon: Message title for users attempting to log on” to “DoD Notice and Consent Banner”, “US Department of Defense Warning Statement”, or a site defined equivalent. If a site defined title is used, it can in no case contravene or modify the language of the banner text required in V-1089.

b
The Deny log on as a batch job user right on domain controllers must be configured to prevent unauthenticated access.
AC-3 - Medium - CCI-000213 - V-26483 - SV-47112r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
WINUR-000018-DC
Vuln IDs
  • V-26483
Rule IDs
  • SV-47112r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a batch job" right defines accounts that are prevented from logging on to the system as a batch job, such as Task Scheduler. The Guests group and Support_388945a0 account must be assigned to prevent unauthenticated access.System AdministratorECLP-1
Checks: C-44722r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; User Rights Assignment. If the following accounts or groups are not defined for the "Deny log on as a batch job" right, this is a finding: Guests Group Support_388945a0

Fix: F-41022r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on as a batch job" to include the following. Guests Group Support_388945a0

b
The Deny log on as a service user right will be configured to include no one (blank).
AC-3 - Medium - CCI-000213 - V-26484 - SV-47122r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
WINUR-000019-DC
Vuln IDs
  • V-26484
Rule IDs
  • SV-47122r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a service" right defines accounts that are denied log on as a service. Incorrect configurations could prevent services from starting and result in a DoS. System AdministratorECLP-1
Checks: C-44720r2_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; User Rights Assignment. If any accounts or groups are defined for the "Deny log on as a service" right, this is a finding.

Fix: F-41020r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on as a service" to include no entries (blank).

b
The Deny log on locally user right on domain controllers must be configured to prevent unauthenticated access.
AC-3 - Medium - CCI-000213 - V-26485 - SV-47105r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
WINUR-000020-DC
Vuln IDs
  • V-26485
Rule IDs
  • SV-47105r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on locally" right defines accounts that are prevented from logging on interactively. The Guests group and Support_388945a0 account must be assigned this right to prevent unauthenticated access.System AdministratorECLP-1
Checks: C-44718r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; User Rights Assignment. If the following accounts or groups are not defined for the "Deny log on locally" right, this is a finding: Guests Group Support_388945a0

Fix: F-41018r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on locally" to include the following. Guests Group Support_388945a0

b
The Deny log on through Terminal Services user right on domain controllers must prevent all access if TS is not used by the organization. If TS is used, it must be configured to prevent unauthenticated access.
AC-3 - Medium - CCI-000213 - V-26486 - SV-47138r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
WINUR-000021-DC
Vuln IDs
  • V-26486
Rule IDs
  • SV-47138r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on through Terminal Services" right defines the accounts that are prevented from logging on using Terminal Services which allows remote connections. If Terminal Services is not used by the organization, the Everyone group must be assigned this right to prevent all access. If Terminal Services is used by the organization, the Guests group must be assigned this right to prevent unauthenticated access.System AdministratorECLP-1
Checks: C-44716r1_chk

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -&gt; User Rights Assignment. If the following accounts or groups are not defined for the "Deny log on through Terminal Services" right, this is a finding: Everyone - If Terminal Services is not used by the organization. Guests - If Terminal Services is used by the organization.

Fix: F-41016r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on through Terminal Services" to include the following. If Terminal Services is not used by the organization, assign the Everyone group this right to prevent all access. If TS is used by the organization, assign the Guests group.

c
PKI certificates associated with user accounts must be issued by the DoD PKI or an approved External Certificate Authority (ECA).
IA-5 - High - CCI-000185 - V-26683 - SV-54957r1_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000185
Version
DS00.2141_2003
Vuln IDs
  • V-26683
Rule IDs
  • SV-54957r1_rule
A PKI implementation depends on the practices established by the Certificate Authority (CA) to ensure the implementation is secure. Without proper practices, the certificates issued by a CA have limited value in authentication functions.If the certificates in use are issued by a CA authorized by the Components CIO, then mark this as a CAT II finding.System AdministratorIAKM-1, IATS-2, IAKM-2, IATS-1
Checks: C-48717r1_chk

Verify the source of PKI certificates associated with user accounts in active directory. Ask the administrator to identify one or more account entries in the directory for which a PKI certificate has been imported. Open Active Directory Users and Computers. (Available from various menus or run "dsa.msc".) Select the Users container or the OU in which user accounts have been identified. For each User account sampled, right click and select Properties. Select the Published Certificates tab. Examine the Issued By field for the certificates to determine the issuing CA. If the Issued By field of any PKI certificate being stored with an account does not indicate the issuing Certificate Authority (CA) is part of the DoD PKI or an approved ECA, this is a finding.

Fix: F-47838r1_fix

Replace unauthorized certificates associated with user accounts with ones issued by the DoD PKI or an approved External Certificate Authority.

b
File Replication Service (FRS) directory data files must have proper access control permissions.
AC-6 - Medium - CCI-002235 - V-27109 - SV-34409r3_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
DS00.0121_2003
Vuln IDs
  • V-27109
Rule IDs
  • SV-34409r3_rule
Improper access permissions for directory data files could allow unauthorized users to read, modify, or delete directory data.System Administrator
Checks: C-49673r2_chk

Run "Regedit". Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NtFrs\Parameters". Note the value for "Working Directory", typically "%SystemRoot%\ntfrs". Verify the permissions of the noted location. If the access control permissions of the FRS directory are not at least as restrictive as those below, this is a finding. FRS Directory Permissions: Administrators - Full Control (F) SYSTEM - Full Control (F)

Fix: F-50021r2_fix

Maintain the access control permissions for the FRS directory as outlined below. FRS Directory Permissions: Administrators - Full Control (F) SYSTEM - Full Control (F)

c
Access control permissions on the GPT directory files must comply with the required guidance.
AC-6 - High - CCI-002235 - V-27119 - SV-34425r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
DS00.0122_2003
Vuln IDs
  • V-27119
Rule IDs
  • SV-34425r2_rule
Improper access permissions for directory data files could allow unauthorized users to read, modify, or delete directory data. For AD this data includes identification, authentication, and authorization data. A compromise of this data could have grave consequences to a large number of hosts throughout the AD forest that utilize the directory server data to make access control decisions.System AdministratorECCD-2, ECAN-1, ECCD-1
Checks: C-32093r1_chk

1. At a command line prompt enter “net share”. 2. Note the location for the SYSVOL share. 3. Checking the noted location in Windows Explorer, compare the ACLs of the GPT *directories* (GPT parent and GPT Policies directories) to the specifications below. 4. If the permissions are not at least as restrictive as those below, then this is a finding. GPT Parent (SYSVOL) and GPT Policies Directories Permissions: ...\SYSVOL :Administrators, SYSTEM : Full Control (F) :Authenticated Users, Server Operators: Read, Read &amp; Execute, List Folder Contents :CREATOR OWNER : Full Control (F) - - Subfolders and files only ...\SYSVOL\[domain]\Policies : Administrators, SYSTEM :Full Control (F) :Authenticated Users, Server Operators: Read, Read &amp; Execute, List Folder Contents :CREATOR OWNER : Full Control (F) - - Subfolders and files only :Group Policy Creator Owners: : Read, Read &amp; Execute, List Folder Contents, Modify, Write

Fix: F-34003r1_fix

Set the permissions as follows: GPT Parent (SYSVOL) and GPT Policies Directories Permissions: ...\SYSVOL :Administrators, SYSTEM : Full Control (F) :Authenticated Users, Server Operators: Read, Read & Execute, List Folder Contents :CREATOR OWNER : Full Control (F) - - Subfolders and files only ...\SYSVOL\[domain]\Policies : Administrators, SYSTEM :Full Control (F) :Authenticated Users, Server Operators: Read, Read & Execute, List Folder Contents :CREATOR OWNER : Full Control (F) - - Subfolders and files only :Group Policy Creator Owners: : Read, Read & Execute, List Folder Contents, Modify, Write

c
The access control permissions for the Domain and OU group policy must be configured to use the required access permissions.
AC-6 - High - CCI-002235 - V-29540 - SV-39026r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
DS00.0131_AD
Vuln IDs
  • V-29540
Rule IDs
  • SV-39026r2_rule
When directory service database objects do not have appropriate access control permissions, it may be possible for malicious users to create, read, update, or delete the objects and degrade or destroy the integrity of the data. When the directory service is used for identification, authentication, or authorization functions, a compromise of the database objects could lead to a compromise of all systems that rely on the directory service. For AD, the Group Policy and OU objects require special attention. In a distributed administration model (i.e., help desk). Group Policy and OU objects are more likely to have access permissions changed from the secure defaults. If inappropriate access permissions are defined for Group Policy Objects, this could allow an intruder to change the security policy applied to all domain client computers (workstations and servers). If inappropriate access permissions are defined for OU objects, it could allow an intruder to add or delete users in the OU. This could result in unauthorized access to data or a denial of service to authorized users.- The severity category for findings resulting from this check must be determined based on the directory object or attribute involved. - If any object or attribute with improper permissions includes identification or authentication data (e.g., accounts, passwords, or password hash data) that is used by systems to determine access control, then the severity is category I. - If any user object attribute with improper permissions includes data that is used by systems to determine access control, then the severity is category I. - If other user object attributes have improper permissions, then the severity is category II. - If there is no documentation to support authorized update access to user object attributes, then the severity is category III.Information Assurance OfficerECAN-1, ECLP-1, ECCD-1, ECCD-2
Checks: C-32094r1_chk

Verifying Group Policy Object Procedures - Domain &amp; OU Policies 1. Start the Active Directory Users and Computers console (“Start”, “Run…”, “dsa.msc”). 2. Ensure that the Advanced Features item on the View menu is enabled. 3. Select the left pane item that matches the name of the domain being reviewed. 4. Right-click the domain name and select the Properties item. 5. On the domain Properties window, click the Group Policy tab. 6. For *each* Group Policy Object Link: a. Select the Group Policy Object Link item. b. Select the Properties button. c. On the domain Group Policy Properties window, select the Security tab. d. Compare the ACL of each domain Group Policy to the specifications for Group Policy Objects below. 7. If the actual permissions for any domain Group Policy object are not at least as restrictive as those below, then this is a finding. Note: Each domain has at least one domain Group Policy. This will be the Default Domain Policy. 8. Return to the initial console view of the Active Directory Users and Computers console. 9. For each OU that is defined (folder in folder icon): 10. Right-click the OU and select the Properties item. 11. On the OU Properties window, select the Group Policy tab. 12. For *each* Group Policy Object Link: a. Select the Group Policy Object Link item. b. Select the Properties button. c. On the OU Group Policy Properties window, select the Security tab. d. Compare the ACL of each OU Group Policy to the specifications for Group Policy Objects below. 13. If the actual permissions for any OU Group Policy object are not at least as restrictive as those below, then this is a finding. Note: Each domain has at least one OU that has a Group Policy. This will be the Domain Controllers OU. Group Policy Object Permissions: [Group Policy - e.g., Default Domain] :Administrators, SYSTEM :Full Control (F) :CREATOR OWNER :Full Control (F) :ENTERPRISE DOMAIN CONTROLLERS* :Read :Authenticated Users :Read, Apply Group Policy :[IAO-approved users \ user groups] :Read, Apply Group Policy Supplemental Notes: - Groups containing authenticated users (such as the Authenticated Users group), other locally created user groups, and individual users *may* have the Read and Apply Group Policy permissions set to Allow or Deny. - The Anonymous Logon, Guests, or any group that contains those groups (in which users are not uniquely identified and authenticated) must not have any access permissions unless the group and justification is explicitly documented with the IAO. - Other access permissions that allow the objects to be updated are considered findings unless specifically documented by the IAO. - The permissions for the account names with an asterisk are only needed for Windows Server 2003.

Fix: F-28490r1_fix

Change the access control permissions for the indicated AD objects to conform to the required guidance.

c
The Task Scheduler service must be disabled.
CM-7 - High - CCI-000381 - V-30037 - SV-39606r1_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000381
Version
WINSV-000106
Vuln IDs
  • V-30037
Rule IDs
  • SV-39606r1_rule
Unnecessary services increase the attack surface of a system. Some services may be run under the local System account. Compromising a service could allow an intruder to obtain system permissions and open the system to a variety of attacks.trueSystem AdministratorInformation Assurance OfficerECSC-1
Checks: C-38508r1_chk

Select “Start”. Right-click the “My Computer” icon on the Start menu or the desktop. Select “Manage” from the drop-down menu. Expand the “Services and Applications” object in the Tree window. Select the “Services” object. If the Task Scheduler service is not disabled, and the site has not documented required tasks, this is a finding. Documentable Explanation: If the Task Scheduler service is required it will be documented with the IAO to include the required tasks. Scheduled tasks will be regularly reviewed for unapproved tasks.

Fix: F-33770r1_fix

Configure the system to disable Task Scheduler.

b
The DoD Root Certificate must be installed.
IA-5 - Medium - CCI-000185 - V-32272 - SV-42592r3_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WINPK-000001
Vuln IDs
  • V-32272
Rule IDs
  • SV-42592r3_rule
To ensure secure DoD websites and DoD signed code are properly validated, the system must trust the DoD Root CA 2. The DOD root certificate will ensure that the trust chain is established for server certificates issued from the DOD CA.System AdministratorIATS-1, IATS-2
Checks: C-49223r1_chk

Verify the DoD Root CA 2 certificate is installed as a Trusted Root Certification Authority using the Certificates MMC snap-in. Run “MMC” Select “File”, “Add/Remove Snap-in…” Click “Add…” Select “Certificates”, click “Add” Select “Computer account”, click “Next” Select “Local computer: (the computer this console is running on)”, click “Finish” Click “Close” Click “OK” Expand “Certificates” and navigate to “Trusted Root Certification Authorities\Certificates” Search for “DoD Root CA 2” under “Issued To” in the center pane If there is no entry for “DoD Root CA 2” this is a finding. Select DoD Root CA 2 Right click and select “Open” Select the “Details” Tab Scroll to the bottom and select “Thumbprint Algorithm” Verify the Value is “sha1”, If the value for “Thumbprint Algorithm” is not “sha1” this is a finding. Next select “Thumbprint” If the value for the “Thumbprint” field is not “8C:94:1B:34:EA:1E:A6:ED:9A:E2:BC:54:CF:68:72:52:B4:C9:B5:61” this is a finding. The thumbprint referenced applies to NIPRNet, see PKE documentation for other networks.

Fix: F-48783r1_fix

Install the DoD Root CA 2 certificate. The InstallRoot tool is available on IASE at http://iase.disa.mil/pki-pke/function_pages/tools.html.

b
The DoD Interoperability Root CA 1 to DoD Root CA 2 cross certificate must be installed.
IA-5 - Medium - CCI-000185 - V-32274 - SV-42603r4_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WINPK-000003
Vuln IDs
  • V-32274
Rule IDs
  • SV-42603r4_rule
To ensure that users do not experience denial of service on NIPRNet when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CA 2, the DoD Interoperability Root CA 1 to DoD Root CA 2 cross certificate must be installed in the Untrusted Certificate Store. This requirement only applies to NIPRNet systems.System AdministratorIATS-2, IATS-1
Checks: C-49165r1_chk

Verify the DoD Root CA 2 certificate issued by DoD Interoperability Root CA 1 is installed on NIPRNet systems as an Untrusted Certificate using the Certificates MMC snap-in. Run “MMC” Select “File”, “Add/Remove Snap-in…” Click “Add…” Select “Certificates”, click “Add” Select “Computer account”, click “Next” Select “Local computer: (the computer this console is running on)”, click “Finish” Click “Close” Click “OK” Expand “Certificates” and navigate to “Untrusted Certificates\Certificates” Search in the right pane for “DoD Root CA 2” under “Issued To” with “DoD Interoperability Root CA 1” as “Issued By” If there is no entry for “DoD Root CA 2”, this is a finding. Select “DoD Root CA 2” Right click and select “Open” Select the “Details” Tab Scroll to the bottom and select “Thumbprint Algorithm” Verify the Value is “sha1”, If the value for “Thumbprint Algorithm” is not “sha1”, this is a finding. Next select “Thumbprint” If the value for the “Thumbprint” field is not “99:c4:94:ec:e4:fc:09:3e:ee:13:c4:d6:5b:1b:1e:01:b9:b5:d4:34”, this is a finding.

Fix: F-48591r1_fix

Install the DoD Interoperability Root CA 1 to DoD Root CA 2 cross certificate on NIPRNet systems only. The FBCA Cross-Certificate Remover tool is available on IASE at http://iase.disa.mil/pki-pke/function_pages/tools.html

c
Standard user accounts must only have Read permissions to the Active Setup\Installed Components registry key.
AC-6 - High - CCI-002235 - V-32282 - SV-42615r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WINRG-000001
Vuln IDs
  • V-32282
Rule IDs
  • SV-42615r1_rule
Permissions on the Active Setup\Installed Components registry key must only allow privileged accounts to add or change registry values. If standard user accounts have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system. System AdministratorECCD-1, ECCD-2
Checks: C-40783r2_chk

Navigate to the following registry key and review the assigned permissions: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components On 64-bit systems also review the permissions assigned to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components Verify that standard user accounts and groups only have Read permissions to this registry key. If any standard user accounts or groups have greater permissions this is a finding. The default permissions satisfy this requirement.

Fix: F-36207r3_fix

Ensure only Read permissions are assigned to standard user accounts and groups for the following registry keys. The default configuration satisfies this requirement. All systems HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components 64-bit systems HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components

c
The Windows Installer Always install with elevated privileges must be disabled.
CM-11 - High - CCI-001812 - V-34974 - SV-46216r1_rule
RMF Control
CM-11
Severity
High
CCI
CCI-001812
Version
WINCC-000001
Vuln IDs
  • V-34974
Rule IDs
  • SV-46216r1_rule
Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.ECLP-1
Checks: C-43426r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows\Installer\ Value Name: AlwaysInstallElevated Type: REG_DWORD Value: 0

Fix: F-39542r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Always install with elevated privileges" to "Disabled".

c
Policy must require that administrative user accounts not be used with applications that access the internet, such as web browsers, or with potential internet sources, such as email.
CM-6 - High - CCI-000366 - V-36451 - SV-47862r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
1.006-01
Vuln IDs
  • V-36451
Rule IDs
  • SV-47862r1_rule
Using applications that access the internet or have potential internet sources using administrative privileges exposes a system to compromise. If a flaw in an application is exploited while running as a privileged user, the entire system could be compromised. Web browsers and email are common attack vectors for introducing malicious code and must not be run with an administrative user account. Since administrative user accounts may generally change or work around technical restrictions for running a web browser or other applications, it is essential that policy requires administrative users not access the internet or use applications, such as email. The policy should define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices.ECSC-1
Checks: C-44692r2_chk

Determine if site policy prohibits the use of applications that access the internet, such as web browsers, or with potential internet sources, such as email, by administrative user accounts, except as necessary for local service administration. If it does not, this is a finding.

Fix: F-40989r2_fix

Establish a site policy to prohibit the use applications that access the internet, such as web browsers, or with potential internet sources, such as email, by administrative user accounts. Ensure the policy is enforced.

b
System BIOS or system controllers must have administrator accounts/passwords configured.
CM-6 - Medium - CCI-000366 - V-36663 - SV-54961r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WIN00-000011
Vuln IDs
  • V-36663
Rule IDs
  • SV-54961r1_rule
A system's BIOS or system controller handles the initial startup of a system, and its configuration must be protected from unauthorized modification. When the BIOS or system controller supports the creation of user accounts or passwords, such protections must be used and accounts/passwords only assigned to system administrators. Failure to protect BIOS or system controller settings could result in Denial of Service or compromise of the system resulting from unauthorized configuration changes.ECLP-1
Checks: C-48721r1_chk

Verify a supervisor or administrator password is set in the BIOS or system controller. If a password is not configured, this is a finding.

Fix: F-47842r1_fix

Access the system's BIOS or system controller. Configure a supervisor/administrator password.

c
The system must not use removable media as the boot loader.
CM-6 - High - CCI-000366 - V-36664 - SV-54987r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WIN00-000012
Vuln IDs
  • V-36664
Rule IDs
  • SV-54987r1_rule
Malicious users with removable boot media can gain access to a system configured to use removable media as the boot loader.ECSC-1
Checks: C-48727r1_chk

Verify whether the system BIOS or controller allows removable media for the boot loader. If it does, this is a finding.

Fix: F-47870r1_fix

Configure the system BIOS or controller to use a boot loader installed on fixed media.

b
The Enhanced Mitigation Experience Toolkit (EMET) Protection Profile for Popular Software must be implemented.
SI-16 - Medium - CCI-002824 - V-36704 - SV-50507r5_rule
RMF Control
SI-16
Severity
Medium
CCI
CCI-002824
Version
WINEM-000081
Vuln IDs
  • V-36704
Rule IDs
  • SV-50507r5_rule
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP) on the system and applications adding additional levels of protection.ECVP-1
Checks: C-49488r4_chk

This is applicable to unclassified systems, for other systems this is NA. Verify the "Popular Software" Protection Profile has been implemented. This implements mitigations to protect Internet Explorer, Office programs, and numerous third party applications. If the following registry subkeys do not exist, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\EMET\ The subkeys will include the following: 7z.exe 7zfm.exe 7zg.exe acrobat.exe acrord32.exe chrome.exe communicator.exe excel.exe firefox.exe foxit reader.exe googletalk.exe iexplore.exe infopath.exe itunes.exe java.exe javaw.exe javaws.exe lync.exe mirc.exe msaccess.exe mspup.exe ois.exe opera.exe outlook.exe photoshop.exe pidgen.exe plugin-container.exe powerpnt.exe pptview.exe quicktimeplayer.exe rar.exe realconverter.exe realplay.exe safari.exe skydrive.exe skype.exe thunderbird.exe unrar.exe visio.exe vlc.exe vpreview.exe winamp.exe windowslivewriter.exe winrar.exe winword.exe winzip32.exe winzip64.exe wlmail.exe wlxphotogallery.exe wmplayer.exe wordpad.exe Additional details of the implementation can be viewed with the following. Open a command prompt. Navigate to the EMET installation directory, typically \Program Files\EMET. Execute the following command - "EMET_Conf --list".

Fix: F-49712r3_fix

This is applicable to unclassified systems, for other systems this is NA. Open a command prompt. Navigate to the EMET installation directory, typically \Program Files\EMET. Execute the following command -'EMET_Conf --import "deployment\protection profiles\popular software.xml"' The Enhanced Mitigation Experience Toolkit must be installed on the system to make this setting available.

b
The Enhanced Mitigation Experience Toolkit (EMET) system-wide Data Execution Prevention (DEP) must be enabled and configured to at least Application Opt Out.
SI-16 - Medium - CCI-002824 - V-36705 - SV-50505r4_rule
RMF Control
SI-16
Severity
Medium
CCI
CCI-002824
Version
WINEM-000082
Vuln IDs
  • V-36705
Rule IDs
  • SV-50505r4_rule
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP) on the system and applications adding additional levels of protection.ECVP-1
Checks: C-46266r7_chk

This is applicable to unclassified systems, for other systems this is NA. Open EMET in Programs\Enhanced Mitigation Experience Toolkit. Verify under System Status that Data Execution Prevention (DEP) is configured to "Application Opt Out". Alternately verify in System Properties. Select "System" in Control Panel. Select the "Advanced" tab. Click "Settings" in the "Performance" section. Select the "Data Execution Prevention" tab. Verify "Turn on DEP for all programs and services except those I select:" is selected. If DEP is not configured as specified, this is a finding. Applications that do not function properly due to this setting, and are opted out, must be documented with the ISSO.

Fix: F-43653r7_fix

This is applicable to unclassified systems, for other systems this is NA. Open EMET in Programs\Enhanced Mitigation Experience Toolkit. Configure Data Execution Prevention (DEP) under System Status to "Application Opt Out". The Enhanced Mitigation Experience Toolkit must be installed on the system to make this setting available. Document applications that do not function properly due to this setting, and are opted out, with the ISSO. Alternately configure in System Properties. Select "System" in Control Panel. Select the "Advanced" tab. Click "Settings" in the "Performance" section. Select the "Data Execution Prevention" tab. Select "Turn on DEP for all programs and services except those I select:". Applications that are opted out are configured in the window below this selection.

c
The Enhanced Mitigation Experience Toolkit (EMET) V4.1 Update 1 or later must be installed on the system.
CM-6 - High - CCI-000366 - V-39137 - SV-50948r4_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WINGE-000100
Vuln IDs
  • V-39137
Rule IDs
  • SV-50948r4_rule
Attackers are constantly looking for vulnerabilities in systems and applications. The Enhanced Mitigation Experience Toolkit can enable several mechanisms, such as Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Structured Exception Handler Overwrite Protection (SEHOP) on the system and applications adding additional levels of protection.ECVP-1
Checks: C-59363r3_chk

This is applicable to unclassified systems, for other systems this is NA. Verify EMET V4.1 Update 1 or later is installed on the system. If EMET is not installed, or at the minimum required version, this is a finding. Microsoft support for EMET V4.x ends 9 June 2015. Organizations should plan to update to a supported version.

Fix: F-63851r3_fix

This is applicable to unclassified systems, for other systems this is NA. Install EMET V4.1 Update 1 or later on the system. EMET is available for download from Microsoft. Microsoft support for EMET V4.x ends 9 June 2015. Organizations should plan to update to a supported version.

b