Cyber Trackr - Free Compliance Library
Cyber Trackr
The Free Compliance Library

Windows Server 2012 / 2012 R2 Domain Controller Security Technical Implementation Guide

  • Version/Release: V2R5
  • Published: 2016-06-08
  • Expand All:
  • Severity:
  • Sort:
Compare

Select any two versions of this STIG to compare the individual requirements

View

Select any old version/release of this STIG to view the previous requirements

The Windows Server 2012 / 2012 R2 Domain Controller Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. Comments or proposed revisions to this document should be sent via e-mail to the following address: disa.stig_spt@mail.mil.
b
Server systems must be located in a controlled access area, accessible only to authorized personnel.
CM-6 - Medium - CCI-000366 - V-1070 - SV-52838r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-00-000001
Vuln IDs
  • V-1070
Rule IDs
  • SV-52838r1_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 is the first line of protection of any system.
Checks: C-47155r1_chk

Verify servers are located in controlled access areas that are accessible only to authorized personnel. If systems are not adequately protected, this is a finding.

Fix: F-45764r1_fix

Ensure servers are located in secure, access-controlled areas.

b
Shared user accounts must not be permitted on the system.
IA-2 - Medium - CCI-000764 - V-1072 - SV-52839r1_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
WN12-00-000012
Vuln IDs
  • V-1072
Rule IDs
  • SV-52839r1_rule
Shared accounts (accounts where two or more people log in with the same user identification) do not provide adequate identification and authentication. There is no way to provide for nonrepudiation or individual accountability for system access and resource usage.
Checks: C-47156r2_chk

Determine whether any shared accounts exist. If no shared accounts exist, this is NA. If shared accounts exist, this is a finding.

Fix: F-45765r1_fix

Remove any shared accounts from the system.

c
Systems must be maintained at a supported service pack level.
CM-6 - High - CCI-000366 - V-1073 - SV-53189r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-GE-000001
Vuln IDs
  • V-1073
Rule IDs
  • SV-53189r2_rule
Systems at unsupported service packs or releases will not receive security updates for new vulnerabilities, which leave them subject to exploitation. Systems must be maintained at a service pack level supported by the vendor with new security updates.
Checks: C-47495r1_chk

Run "winver.exe". If the "About Windows" dialog box does not display "Microsoft Windows Server Version 6.2 (Build 9200)" or greater, this is a finding. No preview versions will be used in a production environment. Unsupported Service Packs/Releases: Windows 2012 - any release candidates or versions prior to the initial release.

Fix: F-46115r1_fix

Update the system to a supported release or service pack level.

c
An approved DoD antivirus program must be installed and used.
CM-6 - High - CCI-000366 - V-1074 - SV-52103r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-GE-000002
Vuln IDs
  • V-1074
Rule IDs
  • SV-52103r2_rule
Virus scan 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 a virus scan program provides the ability to detect malicious code before extensive damage occurs.If another recognized antivirus product is installed, this would still be a finding; however, the severity may be reduced to a CAT III.
Checks: C-61993r1_chk

Verify a supported DoD antivirus product has been installed on the system. If McAfee VirusScan Enterprise 8.8 Patch 3 or later is not installed on the system, this is a finding.

Fix: F-66889r1_fix

Install McAfee VirusScan Enterprise 8.8 Patch 3 or later on the system.

a
The shutdown option must not be available from the logon dialog box.
CM-6 - Low - CCI-000366 - V-1075 - SV-52840r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000073
Vuln IDs
  • V-1075
Rule IDs
  • SV-52840r1_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 system's Security event log.
Checks: C-47157r2_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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ShutdownWithoutLogon Value Type: REG_DWORD Value: 0

Fix: F-45766r1_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-level information must be backed up in accordance with local recovery time and recovery point objectives.
CM-6 - Low - CCI-000366 - V-1076 - SV-52841r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-00-000014
Vuln IDs
  • V-1076
Rule IDs
  • SV-52841r2_rule
Operating system backup is a critical step in maintaining data assurance and availability. System-level information includes system-state information, operating system and application software, and licenses. Backups must be consistent with organizational recovery time and recovery point objectives.
Checks: C-58957r1_chk

Determine whether system-level information is backed up in accordance with local recovery time and recovery point objectives. If system-level information is not backed up in accordance with local recovery time and recovery point objectives, this is a finding.

Fix: F-63413r2_fix

Implement system-level information backups in accordance with local recovery time and recovery point objectives.

c
Local volumes must be formatted using NTFS.
AC-3 - High - CCI-000213 - V-1081 - SV-52843r2_rule
RMF Control
AC-3
Severity
High
CCI
CCI-000213
Version
WN12-GE-000005
Vuln IDs
  • V-1081
Rule IDs
  • SV-52843r2_rule
The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a system. To support this, volumes must be formatted using the NTFS file system.
Checks: C-47160r3_chk

Open the Computer Management Console. Expand the "Storage" object in the Tree window. Select the "Disk Management" object. If the file system column does not indicate "NTFS" as the file system for each local hard drive, this is a finding. Some hardware vendors create a small FAT partition to store troubleshooting and recovery data. No other files must be stored here. This must be documented with the ISSO.

Fix: F-45769r1_fix

Format all partitions/drives to use NTFS.

b
The required legal notice must be configured to display before console logon.
AC-8 - Medium - CCI-000048 - V-1089 - SV-52845r2_rule
RMF Control
AC-8
Severity
Medium
CCI
CCI-000048
Version
WN12-SO-000022
Vuln IDs
  • V-1089
Rule IDs
  • SV-52845r2_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Checks: C-47162r2_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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LegalNoticeText Value Type: REG_SZ Value: See message text below 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.

Fix: F-45771r2_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" to the following: 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.

a
Caching of logon credentials must be limited.
CM-6 - Low - CCI-000366 - V-1090 - SV-52846r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000024
Vuln IDs
  • V-1090
Rule IDs
  • SV-52846r2_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 being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well-protected, if a system is attacked, an unauthorized individual may isolate the password to a domain user account using a password-cracking program and gain access to the domain.
Checks: C-61743r2_chk

If the system is not a member of a domain, this is NA. 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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: CachedLogonsCount Value Type: REG_SZ Value: 4 (or less)

Fix: F-66507r2_fix

If the system is not a member of a domain, this is NA. 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 "4" logons or less.

c
Anonymous enumeration of shares must be restricted.
SC-4 - High - CCI-001090 - V-1093 - SV-52847r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000052
Vuln IDs
  • V-1093
Rule IDs
  • SV-52847r1_rule
Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can provide a map of potential points to attack the system.
Checks: C-47164r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: RestrictAnonymous Value Type: REG_DWORD Value: 1

Fix: F-45773r1_fix

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

b
The number of allowed bad logon attempts must meet minimum requirements.
AC-7 - Medium - CCI-000044 - V-1097 - SV-52848r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN12-AC-000002
Vuln IDs
  • V-1097
Rule IDs
  • SV-52848r1_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 must be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.
Checks: C-47165r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy. If the "Account lockout threshold" is "0" or more than "3" attempts, this is a finding.

Fix: F-45774r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy -> "Account lockout threshold" to "3" or less invalid logon attempts (excluding "0" which is unacceptable).

b
The period of time before the bad logon counter is reset must meet minimum requirements.
AC-7 - Medium - CCI-000044 - V-1098 - SV-52849r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN12-AC-000003
Vuln IDs
  • V-1098
Rule IDs
  • SV-52849r1_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that must pass after failed logon attempts before the counter is reset to 0. The smaller this value is, the less effective the account lockout feature will be in protecting the local system.
Checks: C-47166r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy. If the "Reset account lockout counter after" value is less than "60" minutes, this is a finding.

Fix: F-45775r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy -> "Reset account lockout counter after" to at least "60" minutes.

b
The lockout duration must be configured to require an administrator to unlock an account.
AC-7 - Medium - CCI-002238 - V-1099 - SV-52850r1_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-002238
Version
WN12-AC-000001
Vuln IDs
  • V-1099
Rule IDs
  • SV-52850r1_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that an account will remain locked after the specified number of failed logon attempts. A value of 0 will require an administrator to unlock the account.
Checks: C-47167r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy. If the "Account lockout duration" is not set to "0", requiring an administrator to unlock the account, this is a finding.

Fix: F-45776r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy -> "Account lockout duration" to "0" minutes, "Account is locked out until administrator unlocks it".

c
Unauthorized accounts must not have the Act as part of the operating system user right.
AC-6 - High - CCI-002235 - V-1102 - SV-52108r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-UR-000003
Vuln IDs
  • V-1102
Rule IDs
  • SV-52108r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Act as part of the operating system" user right can assume the identity of any user and gain access to resources that user is authorized to access. Any accounts with this right can take complete control of a system.If an application requires this user right, this can be downgraded to a CAT III if the following conditions are met: Vendor documentation must support the requirement for having the user right. The requirement must be documented with the ISSO. The application account must meet requirements for application account passwords, such as length (V-36661) and required changes frequency (V-36662).
Checks: C-46925r1_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment. If any accounts or groups (to include administrators), are granted the "Act as part of the operating system" user right, this is a finding.

Fix: F-45133r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Act as part of the operating system" to be defined but containing no entries (blank).

b
The maximum password age must meet requirements.
IA-5 - Medium - CCI-000199 - V-1104 - SV-52851r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN12-AC-000005
Vuln IDs
  • V-1104
Rule IDs
  • SV-52851r1_rule
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.
Checks: C-47168r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy. If the value for the "Maximum password age" is greater than "60" days, this is a finding. If the value is set to "0" (never expires), this is a finding.

Fix: F-45777r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Maximum password age" to "60" days or less (excluding "0" which is unacceptable).

b
The minimum password age must meet requirements.
IA-5 - Medium - CCI-000198 - V-1105 - SV-52852r1_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000198
Version
WN12-AC-000006
Vuln IDs
  • V-1105
Rule IDs
  • SV-52852r1_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.
Checks: C-47169r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy. If the value for the "Minimum password age" is set to "0" days ("Password can be changed immediately."), this is a finding.

Fix: F-45778r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Minimum password age" to at least "1" day.

b
The password history must be configured to 24 passwords remembered.
IA-5 - Medium - CCI-000200 - V-1107 - SV-52853r2_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000200
Version
WN12-AC-000004
Vuln IDs
  • V-1107
Rule IDs
  • SV-52853r2_rule
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.
Checks: C-69281r1_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for "Enforce password history" is less than "24" passwords remembered, this is a finding.

Fix: F-74885r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Enforce password history" to "24" passwords remembered.

a
Outdated or unused accounts must be removed from the system or disabled.
IA-4 - Low - CCI-000795 - V-1112 - SV-52854r3_rule
RMF Control
IA-4
Severity
Low
CCI
CCI-000795
Version
WN12-GE-000014
Vuln IDs
  • V-1112
Rule IDs
  • SV-52854r3_rule
Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disabled until needed.
Checks: C-69285r1_chk

Run "PowerShell". Member servers and standalone systems: Copy or enter the lines below to the PowerShell window and enter. (Entering twice may be required. Do not include the quotes at the beginning and end of the query.) "([ADSI]('WinNT://{0}' -f $env:COMPUTERNAME)).Children | Where { $_.SchemaClassName -eq 'user' } | ForEach { $user = ([ADSI]$_.Path) $lastLogin = $user.Properties.LastLogin.Value $enabled = ($user.Properties.UserFlags.Value -band 0x2) -ne 0x2 if ($lastLogin -eq $null) { $lastLogin = 'Never' } Write-Host $user.Name $lastLogin $enabled }" This will return a list of local accounts with the account name, last logon, and if the account is enabled (True/False). For example: User1 10/31/2015 5:49:56 AM True Domain Controllers: Enter the following command in PowerShell. "Search-ADAccount -AccountInactive -UsersOnly -TimeSpan 35.00:00:00" This will return accounts that have not been logged on to for 35 days, along with various attributes such as the Enabled status and LastLogonDate. Review the list of accounts returned by the above queries to determine the finding validity for each account reported. Exclude the following accounts: Built-in administrator account (Disabled, SID ending in 500) Built-in guest account (Disabled, SID ending in 501) Application accounts If any enabled accounts have not been logged on to within the past 35 days, this is a finding. Inactive accounts that have been reviewed and deemed to be required must be documented with the ISSO.

Fix: F-45780r1_fix

Regularly review accounts to determine if they are still active. Remove or disable accounts that have not been used in the last 35 days.

b
The built-in guest account must be disabled.
IA-8 - Medium - CCI-000804 - V-1113 - SV-52855r1_rule
RMF Control
IA-8
Severity
Medium
CCI
CCI-000804
Version
WN12-SO-000003
Vuln IDs
  • V-1113
Rule IDs
  • SV-52855r1_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.
Checks: C-47172r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. If the value for "Accounts: Guest account status" is not set to "Disabled", this is a finding.

Fix: F-45781r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Guest account status" to "Disabled".

b
The built-in guest account must be renamed.
CM-6 - Medium - CCI-000366 - V-1114 - SV-52856r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000006
Vuln IDs
  • V-1114
Rule IDs
  • SV-52856r1_rule
The built-in guest account is a well-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. Renaming this account to an unidentified name improves the protection of this account and the system.
Checks: C-47173r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. If the value for "Accounts: Rename guest account" is not set to a value other than "Guest", this is a finding.

Fix: F-45782r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Rename guest account" to a name other than "Guest".

b
The built-in administrator account must be renamed.
CM-6 - Medium - CCI-000366 - V-1115 - SV-52857r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000005
Vuln IDs
  • V-1115
Rule IDs
  • SV-52857r1_rule
The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.
Checks: C-47174r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. If the value for "Accounts: Rename administrator account" is not set to a value other than "Administrator", this is a finding.

Fix: F-45783r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Rename administrator account" to a name other than "Administrator".

b
The system must not boot into multiple operating systems (dual-boot).
CM-6 - Medium - CCI-000366 - V-1119 - SV-52858r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000010
Vuln IDs
  • V-1119
Rule IDs
  • SV-52858r1_rule
Allowing a system to boot into multiple operating systems (dual-booting) may allow security to be circumvented on a secure system.
Checks: C-47175r2_chk

Verify the local system boots directly into Windows. Open Control Panel. Select "System". Select the "Advanced System Settings" link. Select the "Advanced" tab. Click the "Startup and Recovery" Settings button. If the drop-down list box "Default operating system:" shows any operating system other than Windows Server 2012, this is a finding.

Fix: F-45784r1_fix

Ensure Windows Server 2012 is the only operating system installed for the system to boot into. Remove alternate operating systems.

b
FTP servers must be configured to prevent anonymous logons.
CM-6 - Medium - CCI-000366 - V-1120 - SV-52106r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000026
Vuln IDs
  • V-1120
Rule IDs
  • SV-52106r1_rule
The FTP (File Transfer Protocol) service allows remote users to access shared files and directories. Allowing anonymous FTP connections makes user auditing difficult. Using accounts that have administrator privileges to log on to FTP risks that the userid 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, this becomes a CAT I finding.
Checks: C-46923r1_chk

If FTP is not installed on the system, this is NA. Open a "Command Prompt". Attempt to log on as the user "anonymous" with the following commands: C:\>ftp localhost (Connected to "servername". 220 Microsoft FTP Service) User: anonymous (331 Anonymous access allowed, send identity (e-mail name) as password.) Password: password (230 User logged in.) ftp> If the command response indicates that an anonymous FTP login was permitted, this is a finding.

Fix: F-45131r1_fix

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

c
FTP servers must be configured to prevent access to the system drive.
CM-6 - High - CCI-000366 - V-1121 - SV-52212r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-GE-000027
Vuln IDs
  • V-1121
Rule IDs
  • SV-52212r1_rule
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.
Checks: C-46958r1_chk

If FTP is not installed on the system, this is NA. Open a "Command Prompt". Log on using an authenticated FTP account, and attempt to access the root of the boot drive with the following commands: X:\>ftp 127.0.0.1 (Connected to "servername". 220 "servername" 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 areas of the operating system such as Program Files and Windows directories, this is a finding.

Fix: F-45231r1_fix

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

c
Only administrators responsible for the domain controller must have Administrator rights on the system.
AC-6 - High - CCI-002235 - V-1127 - SV-51157r1_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-GE-000004-DC
Vuln IDs
  • V-1127
Rule IDs
  • SV-51157r1_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.
Checks: C-46589r1_chk

Review the 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-44315r1_fix

Configure the system to include only administrator groups or accounts that are responsible for the system in the 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-52859r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-00-000013
Vuln IDs
  • V-1128
Rule IDs
  • SV-52859r2_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 machines.
Checks: C-47176r2_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-45785r1_fix

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

a
Nonadministrative user accounts or groups must only have print permissions on printer shares.
AC-3 - Low - CCI-000213 - V-1135 - SV-52213r1_rule
RMF Control
AC-3
Severity
Low
CCI
CCI-000213
Version
WN12-GE-000012
Vuln IDs
  • V-1135
Rule IDs
  • SV-52213r1_rule
Windows shares are a means by which files, folders, printers, and other resources can be published for network users to access. Improper configuration can permit access to devices and data beyond a user's need.
Checks: C-46959r1_chk

Open "Devices and Printers" in Control Panel or through Search. If there are no printers configured, this is NA. For each configured printer: Right click on the printer. Select "Printer Properties". Select the "Sharing" tab. View whether "Share this printer" is checked. For any printers with "Share this printer" selected: Select the Security tab. If any standard user accounts or groups have permissions other than "Print", this is a finding. Standard users will typically be given "Print" permission through the Everyone group. "All APPLICATION PACKAGES" and "CREATOR OWNER" are not considered standard user accounts for this requirement.

Fix: F-45232r1_fix

Configure the permissions on shared printers to restrict standard users to only have Print permissions. This is typically given through the Everyone group by default.

a
Users must be forcibly disconnected when their logon hours expire.
SC-10 - Low - CCI-001133 - V-1136 - SV-52860r1_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
WN12-SO-000034
Vuln IDs
  • V-1136
Rule IDs
  • SV-52860r1_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.
Checks: C-47177r2_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: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: EnableForcedLogoff Value Type: REG_DWORD Value: 1

Fix: F-45786r1_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
Unencrypted passwords must not be sent to third-party SMB Servers.
IA-5 - Medium - CCI-000197 - V-1141 - SV-52861r2_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000197
Version
WN12-SO-000030
Vuln IDs
  • V-1141
Rule IDs
  • SV-52861r2_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.
Checks: C-47178r3_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: \SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: EnablePlainTextPassword Value Type: REG_DWORD Value: 0

Fix: F-45787r2_fix

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

b
Automatic logons must be disabled.
CM-6 - Medium - CCI-000366 - V-1145 - SV-52107r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000036
Vuln IDs
  • V-1145
Rule IDs
  • SV-52107r2_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 the DefaultName or DefaultDomainName in the same registry path contain an administrator account name and the DefaultPassword contains a value, this is a CAT I finding.
Checks: C-46924r1_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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: AutoAdminLogon Type: REG_SZ Value: 0

Fix: F-45132r1_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 (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b
The built-in Windows password complexity policy must be enabled.
IA-5 - Medium - CCI-000192 - V-1150 - SV-52863r2_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000192
Version
WN12-AC-000008
Vuln IDs
  • V-1150
Rule IDs
  • SV-52863r2_rule
The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy requires passwords to contain at least 3 of the 4 types of characters (numbers, upper- and lower-case letters, and special characters), as well as preventing the inclusion of user names or parts of.
Checks: C-66217r1_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for "Password must meet complexity requirements" is not set to "Enabled", this is a finding. Note: If an external password filter is in use that enforces all 4 character types and requires this setting be set to "Disabled", this would not be considered a finding. If this setting does not affect the use of an external password filter, it must be enabled for fallback purposes.

Fix: F-45789r2_fix

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

a
The print driver installation privilege must be restricted to administrators.
CM-11 - Low - CCI-001812 - V-1151 - SV-52214r2_rule
RMF Control
CM-11
Severity
Low
CCI
CCI-001812
Version
WN12-SO-000089
Vuln IDs
  • V-1151
Rule IDs
  • SV-52214r2_rule
Allowing users to install drivers can introduce malware or cause the instability of a system. Print driver installation should be restricted to administrators.
Checks: C-46960r2_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: \System\CurrentControlSet\Control\Print\Providers\LanMan Print Services\Servers\ Value Name: AddPrinterDrivers Value Type: REG_DWORD Value: 1

Fix: F-45233r2_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 must be restricted.
AC-6 - High - CCI-002235 - V-1152 - SV-52864r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-RG-000004
Vuln IDs
  • V-1152
Rule IDs
  • SV-52864r2_rule
The registry is integral to the function, security, and stability of the Windows system. Some processes may require anonymous access to the registry. This must be limited to properly protect the system.
Checks: C-66339r1_chk

Run "Regedit". Navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurePipeServers\Winreg\ If the key does not exist, this is a finding. Review the permissions. If the default permissions listed below have been changed, this is a finding. Administrators - Full Control Backup Operators - Read (This key only) LOCAL SERVICE - Read

Fix: F-71725r1_fix

Maintain the default permissions of the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurePipeServers\Winreg\ Administrators - Full Control Backup Operators - Read (This key only) LOCAL SERVICE - Read

c
The LanMan authentication level must be set to send NTLMv2 response only, and to refuse LM and NTLM.
CM-6 - High - CCI-000366 - V-1153 - SV-52865r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-SO-000067
Vuln IDs
  • V-1153
Rule IDs
  • SV-52865r1_rule
The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM, which is less secure, is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows or applications that still use it. It is also used to authenticate logons to stand-alone computers that are running later versions.
Checks: C-47182r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: LmCompatibilityLevel Value Type: REG_DWORD Value: 5

Fix: F-45791r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: LAN Manager authentication level" to "Send NTLMv2 response only. Refuse LM & NTLM".

b
The Ctrl+Alt+Del security attention sequence for logons must be enabled.
CM-6 - Medium - CCI-000366 - V-1154 - SV-52866r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000019
Vuln IDs
  • V-1154
Rule IDs
  • SV-52866r1_rule
Disabling the Ctrl+Alt+Del security attention sequence can compromise system security. Because only Windows responds to the Ctrl+Alt+Del security sequence, a user can be assured that any passwords entered following that sequence are sent only to Windows. If the sequence requirement is eliminated, malicious programs can request and receive a user's Windows password. Disabling this sequence also suppresses a custom logon banner.
Checks: C-47183r2_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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DisableCAD Value Type: REG_DWORD Value: 0

Fix: F-45792r1_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".

b
The Deny access to this computer from the network user right on domain controllers must be configured to prevent unauthenticated access.
AC-3 - Medium - CCI-000213 - V-1155 - SV-51144r1_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-000213
Version
WN12-UR-000017-DC
Vuln IDs
  • V-1155
Rule IDs
  • SV-51144r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny access to this computer from the network" user right defines the accounts that are prevented from logging on from the network. The Guests group must be assigned this right to prevent unauthenticated access.
Checks: C-46578r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment. If the following accounts or groups are not defined for the "Deny access to this computer from the network" user right, this is a finding: Guests Group

Fix: F-44301r2_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

b
The Smart Card removal option must be configured to Force Logoff or Lock Workstation.
CM-6 - Medium - CCI-000366 - V-1157 - SV-52867r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000027
Vuln IDs
  • V-1157
Rule IDs
  • SV-52867r2_rule
Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.
Checks: C-47184r3_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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: SCRemoveOption Value Type: REG_SZ Value: 1 (Lock Workstation) or 2 (Force Logoff) 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 must be documented with the ISSO.

Fix: F-45793r1_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 must be disabled.
CM-6 - Low - CCI-000366 - V-1158 - SV-52868r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000072
Vuln IDs
  • V-1158
Rule IDs
  • SV-52868r2_rule
The Recovery Console SET command allows environment variables to be set in the Recovery Console. This permits access to all drives and folders and the copying of files to removable media, which could expose sensitive information.
Checks: C-47185r3_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\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole\ Value Name: SetCommand Value Type: REG_DWORD Value: 0

Fix: F-45794r2_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 all folders" to "Disabled".

c
The Recovery Console option must be set to prevent automatic logon to the system.
CM-6 - High - CCI-000366 - V-1159 - SV-52869r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-SO-000071
Vuln IDs
  • V-1159
Rule IDs
  • SV-52869r2_rule
If this option is enabled, the Recovery Console does not require a password and automatically logs on to the system. This could allow unauthorized administrative access to the system.
Checks: C-47186r2_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\Microsoft\Windows NT\CurrentVersion\Setup\RecoveryConsole\ Value Name: SecurityLevel Value Type: REG_DWORD Value: 0

Fix: F-45795r1_fix

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

b
The Windows SMB server must perform SMB packet signing when possible.
SC-8 - Medium - CCI-002418 - V-1162 - SV-52870r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000033
Vuln IDs
  • V-1162
Rule IDs
  • SV-52870r2_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will negotiate SMB packet signing as requested by the client.
Checks: C-47187r2_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: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: EnableSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-45796r1_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 must be encrypted when possible.
SC-8 - Medium - CCI-002418 - V-1163 - SV-52871r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000013
Vuln IDs
  • V-1163
Rule IDs
  • SV-52871r2_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.If the value for Domain Member: Digitally encrypt or sign secure channel data (always) is set to Enabled, this would not be a finding.
Checks: C-47188r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SealSecureChannel Value Type: REG_DWORD Value: 1 If the value for "Domain Member: Digitally encrypt or sign secure channel data (always)" is set to "Enabled", this can be NA (see V-6831).

Fix: F-45797r1_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 must be signed when possible.
SC-8 - Medium - CCI-002418 - V-1164 - SV-52872r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000014
Vuln IDs
  • V-1164
Rule IDs
  • SV-52872r2_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, outgoing secure channel traffic will be signed.If the value for Domain Member: Digitally encrypt or sign secure channel data (always) is set to Enabled, this would not be a finding.
Checks: C-47189r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SignSecureChannel Value Type: REG_DWORD Value: 1 If the value for "Domain Member: Digitally encrypt or sign secure channel data (always)" is set to "Enabled", this can be NA (see V-6831).

Fix: F-45798r1_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 must not be prevented from being reset.
CM-6 - Low - CCI-000366 - V-1165 - SV-52873r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000015
Vuln IDs
  • V-1165
Rule IDs
  • SV-52873r1_rule
Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. A new password for the computer account will be generated every 30 days.
Checks: C-47190r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: DisablePasswordChange Value Type: REG_DWORD Value: 0

Fix: F-45799r1_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 must be enabled to perform SMB packet signing when possible.
SC-8 - Medium - CCI-002418 - V-1166 - SV-52874r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000029
Vuln IDs
  • V-1166
Rule IDs
  • SV-52874r2_rule
The server message block (SMB) protocol provides the basis for many network operations. If this policy is enabled, the SMB client will request packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.
Checks: C-47191r2_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: \System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: EnableSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-45800r1_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 be documented.
CM-6 - Medium - CCI-000366 - V-1168 - SV-52156r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-00-000009-01
Vuln IDs
  • V-1168
Rule IDs
  • SV-52156r2_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 backup and restore purposes. Visibility of members of the Backup Operators group must be maintained.
Checks: C-46951r2_chk

If no accounts are members of the Backup Operators group, this is NA. Any accounts that are members of the Backup Operators group, including application accounts, must be documented with the ISSO. If documentation of accounts that are members of the Backup Operators group is not maintained this is a finding.

Fix: F-45181r1_fix

Create the necessary documentation that identifies the members of the Backup Operators group.

b
Ejection of removable NTFS media must be restricted to Administrators.
CM-6 - Medium - CCI-000366 - V-1171 - SV-52875r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000011
Vuln IDs
  • V-1171
Rule IDs
  • SV-52875r1_rule
Removable hard drives, if they are not properly configured, can be formatted and ejected by users who are not members of the Administrators Group. Formatting and ejecting removable NTFS media must only be done by administrators.
Checks: C-47192r3_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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: AllocateDASD Value Type: REG_SZ Value: 0

Fix: F-45801r1_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 must be warned in advance of their passwords expiring.
CM-6 - Low - CCI-000366 - V-1172 - SV-52876r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000025
Vuln IDs
  • V-1172
Rule IDs
  • SV-52876r1_rule
Creating strong passwords that can be remembered by users requires some thought. By giving the user advance warning, the user has time to construct a sufficiently strong password. This setting configures the system to display a warning to users telling them how many days are left before their password expires.
Checks: C-47193r2_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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: PasswordExpiryWarning Value Type: REG_DWORD Value: 14 (or greater)

Fix: F-45802r1_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 must be increased.
CM-6 - Low - CCI-000366 - V-1173 - SV-52877r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000076
Vuln IDs
  • V-1173
Rule IDs
  • SV-52877r1_rule
Windows systems maintain 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 nonadministrative users to read shared objects, but not modify shared objects that they did not create.
Checks: C-47194r2_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: \System\CurrentControlSet\Control\Session Manager\ Value Name: ProtectionMode Value Type: REG_DWORD Value: 1

Fix: F-45803r1_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
The amount of idle time required before suspending a session must be properly set.
SC-10 - Low - CCI-001133 - V-1174 - SV-52878r3_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
WN12-SO-000031
Vuln IDs
  • V-1174
Rule IDs
  • SV-52878r3_rule
Open sessions can increase the avenues of attack on a system. This setting is used 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.
Checks: C-47195r3_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: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: autodisconnect Value Type: REG_DWORD Value: 0x0000000f (15) (or less)

Fix: F-45804r2_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 session" to "15" minutes or less.

c
Reversible password encryption must be disabled.
IA-5 - High - CCI-000196 - V-2372 - SV-52880r1_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000196
Version
WN12-AC-000009
Vuln IDs
  • V-2372
Rule IDs
  • SV-52880r1_rule
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy must never be enabled.
Checks: C-47197r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy. If the value for "Store password using reversible encryption" is not set to "Disabled", this is a finding.

Fix: F-45806r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Store password using reversible encryption" to "Disabled".

c
Autoplay must be disabled for all drives.
CM-7 - High - CCI-001764 - V-2374 - SV-52879r2_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN12-CC-000074
Vuln IDs
  • V-2374
Rule IDs
  • SV-52879r2_rule
Allowing Autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon media is inserted into the drive. As a result, the setup file of programs or music on audio media may start. By default, Autoplay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive) and on network drives. Enabling this policy disables Autoplay on all drives.
Checks: C-47196r2_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\Microsoft\Windows\CurrentVersion\policies\Explorer\ Value Name: NoDriveTypeAutoRun Type: REG_DWORD Value: 0x000000ff (255)

Fix: F-45805r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> AutoPlay Policies -> "Turn off AutoPlay" to "Enabled:All Drives".

b
Kerberos user logon restrictions must be enforced.
CM-6 - Medium - CCI-000366 - V-2376 - SV-51160r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-AC-000010-DC
Vuln IDs
  • V-2376
Rule IDs
  • SV-51160r2_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.ECSC-1
Checks: C-46590r1_chk

Verify the following is configured in the Default Domain Policy. Open "Group Policy Management". Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain). Right click on the "Default Domain Policy". Select Edit. Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Account Policies > Kerberos Policy. If the "Enforce user logon restrictions" is not set to "Enabled", this is a finding.

Fix: F-44317r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Enforce user logon restrictions" to "Enabled".

b
The Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.
CM-6 - Medium - CCI-000366 - V-2377 - SV-51162r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-AC-000011-DC
Vuln IDs
  • V-2377
Rule IDs
  • SV-51162r2_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.ECSC-1
Checks: C-46591r1_chk

Verify the following is configured in the Default Domain Policy. Open "Group Policy Management". Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain). Right click on the "Default Domain Policy". Select Edit. Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > 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-44319r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for service ticket" to a maximum of 600 minutes, but not 0 which equates to "Ticket doesn't expire".

b
The Kerberos user ticket lifetime must be limited to 10 hours or less.
CM-6 - Medium - CCI-000366 - V-2378 - SV-51164r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-AC-000012-DC
Vuln IDs
  • V-2378
Rule IDs
  • SV-51164r2_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.ECSC-1
Checks: C-46592r1_chk

Verify the following is configured in the Default Domain Policy. Open "Group Policy Management". Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain). Right click on the "Default Domain Policy". Select Edit. Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > 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-44321r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "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 user ticket renewal maximum lifetime must be limited to 7 days or less.
CM-6 - Medium - CCI-000366 - V-2379 - SV-51166r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-AC-000013-DC
Vuln IDs
  • V-2379
Rule IDs
  • SV-51166r2_rule
This setting determines the period of time (in days) during which a user's TGT may be renewed. This security configuration limits the amount of time an attacker has to crack the TGT and gain access.ECSC-1
Checks: C-46593r1_chk

Verify the following is configured in the Default Domain Policy. Open "Group Policy Management". Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain). Right click on the "Default Domain Policy". Select Edit. Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Account Policies > Kerberos Policy. If the "Maximum lifetime for user ticket renewal" is greater than 7 days, this is a finding.

Fix: F-44324r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for user ticket renewal" to a maximum of 7 days or less.

b
The computer clock synchronization tolerance must be limited to 5 minutes or less.
IA-2 - Medium - CCI-001941 - V-2380 - SV-51168r3_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-001941
Version
WN12-AC-000014-DC
Vuln IDs
  • V-2380
Rule IDs
  • SV-51168r3_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.
Checks: C-46594r1_chk

Verify the following is configured in the Default Domain Policy. Open "Group Policy Management". Navigate to "Group Policy Objects" in the Domain being reviewed (Forest > Domains > Domain). Right click on the "Default Domain Policy". Select Edit. Navigate to Computer Configuration > Policies > Windows Settings > Security Settings > Account Policies > Kerberos Policy. If the "Maximum tolerance for computer clock synchronization" is greater than 5 minutes, this is a finding.

Fix: F-44325r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum tolerance for computer clock synchronization" to a maximum of 5 minutes or less.

b
System files must be monitored for unauthorized changes.
CM-6 - Medium - CCI-000366 - V-2907 - SV-52215r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000017
Vuln IDs
  • V-2907
Rule IDs
  • SV-52215r2_rule
Monitoring system files for changes against a baseline on a regular basis may help detect the possible introduction of malicious code on a system.DCSL-1
Checks: C-46961r1_chk

Determine whether the site monitors system files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on servers for unauthorized changes against a baseline on a weekly basis. If system files are not monitored for unauthorized changes, this is a finding. 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-45234r1_fix

Monitor system files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on servers for unauthorized changes against a baseline on a weekly basis. This can be done with the use of various monitoring tools.

b
File shares must limit access to data on a system.
SC-4 - Medium - CCI-001090 - V-3245 - SV-52881r2_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN12-GE-000018
Vuln IDs
  • V-3245
Rule IDs
  • SV-52881r2_rule
Shares on a system provide network access. To prevent exposing sensitive information, where shares are necessary, permissions must be reconfigured to give the minimum access to those accounts that require it.System created shares should be excluded from the check.
Checks: C-47198r3_chk

Open "Computer Management". Navigate to "Shared Folders" under "System Tools". Select the "Shares" object. Right click any non-system-created shares (the system will prompt when Properties is selected for system-created shares). Select Properties. Select the Share Permissions tab. Verify the necessity of any shares found. If the file shares have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding. Select the Security tab. If the NTFS permissions have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding.

Fix: F-45807r2_fix

If a share is required on a system, configure the share and NTFS permissions to limit access to the specific groups or accounts that require it. Remove any unnecessary nonsystem-created shares.

b
Servers must have a host-based Intrusion Detection System.
CM-6 - Medium - CCI-000366 - V-3289 - SV-52105r3_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000022
Vuln IDs
  • V-3289
Rule IDs
  • SV-52105r3_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 CAT III, if there is an active JIDS or firewall protecting the network.
Checks: C-46922r3_chk

Determine whether there is a host-based Intrusion Detection System on each server. 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. 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 ISSO. If a host-based Intrusion Detection System is not installed on the system, this is a finding.

Fix: F-45130r1_fix

Install a host-based Intrusion Detection System on each server.

c
Anonymous SID/Name translation must not be allowed.
CM-6 - High - CCI-000366 - V-3337 - SV-52882r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-SO-000050
Vuln IDs
  • V-3337
Rule IDs
  • SV-52882r1_rule
Allowing anonymous SID/Name translation can provide sensitive information for accessing a system. Only authorized users must be able to perform such translations.
Checks: C-47199r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. If the value for "Network access: Allow anonymous SID/Name translation" is not set to "Disabled", this is a finding.

Fix: F-45808r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Allow anonymous SID/Name translation" to "Disabled".

c
Named pipes that can be accessed anonymously must be configured with limited values on domain controllers.
SC-4 - High - CCI-001090 - V-3338 - SV-51138r2_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000055-DC
Vuln IDs
  • V-3338
Rule IDs
  • SV-51138r2_rule
Named pipes that can be accessed anonymously provide 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.
Checks: C-46804r2_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: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: NullSessionPipes Value Type: REG_MULTI_SZ Value: netlogon, samr, lsarpc The default configuration of systems promoted to domain controllers may include a blank entry in the first line prior to "netlogon", "samr", and "lsarpc". This will appear in the registry as a blank entry when viewing the registry key summary; however the value data for "NullSessionPipes" will contain the default entries. Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation must contain supporting information from the vendor's instructions.

Fix: F-44648r1_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" to only include "netlogon, samr, lsarpc".

c
Unauthorized remotely accessible registry paths must not be configured.
SC-4 - High - CCI-001090 - V-3339 - SV-52883r2_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000056
Vuln IDs
  • V-3339
Rule IDs
  • SV-52883r2_rule
The registry is integral to the function, security, and stability of the Windows system. Some processes may require remote access to the registry. This setting controls which registry paths are accessible from a remote computer. These registry paths must be limited, as they could give unauthorized individuals access to the registry.
Checks: C-47200r3_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: \System\CurrentControlSet\Control\SecurePipeServers\Winreg\AllowedExactPaths\ Value Name: Machine Value Type: REG_MULTI_SZ Value: see below System\CurrentControlSet\Control\ProductOptions System\CurrentControlSet\Control\Server Applications Software\Microsoft\Windows NT\CurrentVersion Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation must contain supporting information from the vendor's instructions.

Fix: F-45809r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Remotely accessible registry paths" with the following entries: System\CurrentControlSet\Control\ProductOptions System\CurrentControlSet\Control\Server Applications Software\Microsoft\Windows NT\CurrentVersion

c
Network shares that can be accessed anonymously must not be allowed.
SC-4 - High - CCI-001090 - V-3340 - SV-52884r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000059
Vuln IDs
  • V-3340
Rule IDs
  • SV-52884r1_rule
Anonymous access to network shares provides the potential for gaining unauthorized system access by network users. This could lead to the exposure or corruption of sensitive data.
Checks: C-47201r2_chk

If the following registry value does not exist, this is not a finding: If the following registry value does exist and is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: NullSessionShares Value Type: REG_MULTI_SZ Value: (Blank)

Fix: F-45810r1_fix

Ensure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Shares that can be accessed anonymously" contains no entries (blank).

c
Solicited Remote Assistance must not be allowed.
SC-4 - High - CCI-001090 - V-3343 - SV-52885r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-CC-000059
Vuln IDs
  • V-3343
Rule IDs
  • SV-52885r1_rule
Remote assistance allows another user to view or take control of the local session of a user. Solicited assistance is help that is specifically requested by the local user. This may allow unauthorized parties access to the resources on the computer.
Checks: C-47202r2_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\Windows NT\Terminal Services\ Value Name: fAllowToGetHelp Type: REG_DWORD Value: 0

Fix: F-45811r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Configure Solicited Remote Assistance" to "Disabled".

c
Local accounts with blank passwords must be restricted to prevent access from the network.
CM-6 - High - CCI-000366 - V-3344 - SV-52886r1_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-SO-000004
Vuln IDs
  • V-3344
Rule IDs
  • SV-52886r1_rule
An account without a password can allow unauthorized access to a system as only the username would be required. Password policies should prevent accounts with blank passwords from existing on a system. However, if a local account with a blank password did exist, enabling this setting will prevent network access, limiting the account to local console logon only.
Checks: C-47203r3_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: \System\CurrentControlSet\Control\Lsa\ Value Name: LimitBlankPasswordUse Value Type: REG_DWORD Value: 1

Fix: F-45812r1_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".

a
The maximum age for machine account passwords must be set to requirements.
CM-6 - Low - CCI-000366 - V-3373 - SV-52887r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000016
Vuln IDs
  • V-3373
Rule IDs
  • SV-52887r1_rule
Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This setting must be set to no more than 30 days, ensuring the machine changes its password monthly.
Checks: C-47204r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: MaximumPasswordAge Value Type: REG_DWORD Value: 30 (or less, but not 0)

Fix: F-45813r1_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 (excluding "0" which is unacceptable).

b
The system must be configured to require a strong session key.
SC-8 - Medium - CCI-002418 - V-3374 - SV-52888r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000017
Vuln IDs
  • V-3374
Rule IDs
  • SV-52888r2_rule
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
Checks: C-47205r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireStrongKey Value Type: REG_DWORD Value: 1 This setting may prevent a system from being joined to a domain if not configured consistently between systems.

Fix: F-45814r1_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
The system must be configured to prevent the storage of passwords and credentials.
IA-11 - Medium - CCI-002038 - V-3376 - SV-52889r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-SO-000053
Vuln IDs
  • V-3376
Rule IDs
  • SV-52889r1_rule
This setting controls the storage of passwords and credentials for network authentication on the local system. Such credentials must not be stored on the local machine, as that may lead to account compromise.
Checks: C-47206r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: DisableDomainCreds Value Type: REG_DWORD Value: 1

Fix: F-45815r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Do not allow storage of passwords and credentials for network authentication" to "Enabled".

b
The system must be configured to prevent anonymous users from having the same rights as the Everyone group.
CM-6 - Medium - CCI-000366 - V-3377 - SV-52890r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000054
Vuln IDs
  • V-3377
Rule IDs
  • SV-52890r1_rule
Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.
Checks: C-47207r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: EveryoneIncludesAnonymous Value Type: REG_DWORD Value: 0

Fix: F-45816r1_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 must be configured to use the Classic security model.
SC-4 - Medium - CCI-001090 - V-3378 - SV-52891r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN12-SO-000060
Vuln IDs
  • V-3378
Rule IDs
  • SV-52891r1_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.
Checks: C-47208r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: ForceGuest Value Type: REG_DWORD Value: 0

Fix: F-45817r1_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 must be configured to prevent the storage of the LAN Manager hash of passwords.
IA-5 - High - CCI-000196 - V-3379 - SV-52892r2_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000196
Version
WN12-SO-000065
Vuln IDs
  • V-3379
Rule IDs
  • SV-52892r2_rule
The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords. 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.
Checks: C-47209r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: NoLMHash Value Type: REG_DWORD Value: 1

Fix: F-45818r1_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 must be configured to force users to log off when their allowed logon hours expire.
SC-10 - Medium - CCI-001133 - V-3380 - SV-52893r1_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
WN12-SO-000066
Vuln IDs
  • V-3380
Rule IDs
  • SV-52893r1_rule
Limiting logon hours can help protect data by only allowing access during specified times. 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, this must be enforced.
Checks: C-47210r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. If the value for "Network security: Force logoff when logon hours expire" is not set to "Enabled", this is a finding.

Fix: F-45819r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Force logoff when logon hours expire" to "Enabled".

b
The system must be configured to the required LDAP client signing level.
CM-6 - Medium - CCI-000366 - V-3381 - SV-52894r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000068
Vuln IDs
  • V-3381
Rule IDs
  • SV-52894r1_rule
This setting controls the signing requirements for LDAP clients. This setting must be set to Negotiate signing or Require signing, depending on the environment and type of LDAP server in use.
Checks: C-47211r2_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: \System\CurrentControlSet\Services\LDAP\ Value Name: LDAPClientIntegrity Value Type: REG_DWORD Value: 1

Fix: F-45820r1_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 must be configured to meet the minimum session security requirement for NTLM SSP-based clients.
CM-6 - Medium - CCI-000366 - V-3382 - SV-52895r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000069
Vuln IDs
  • V-3382
Rule IDs
  • SV-52895r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.
Checks: C-47212r2_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: \System\CurrentControlSet\Control\Lsa\MSV1_0\ Value Name: NTLMMinClientSec Value Type: REG_DWORD Value: 0x20080000 (537395200)

Fix: F-45821r1_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" and "Require 128-bit encryption" (all options selected).

b
The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.
SC-13 - Medium - CCI-002450 - V-3383 - SV-52896r1_rule
RMF Control
SC-13
Severity
Medium
CCI
CCI-002450
Version
WN12-SO-000074
Vuln IDs
  • V-3383
Rule IDs
  • SV-52896r1_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 must 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.
Checks: C-47213r2_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: \System\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\ Value Name: Enabled 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-45822r1_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 must be configured to require case insensitivity for non-Windows subsystems.
CM-6 - Medium - CCI-000366 - V-3385 - SV-52897r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000075
Vuln IDs
  • V-3385
Rule IDs
  • SV-52897r1_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 must be restricted. To prevent this from happening, case insensitivity restrictions must be required.
Checks: C-47214r2_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: \System\CurrentControlSet\Control\Session Manager\Kernel\ Value Name: ObCaseInsensitive Value Type: REG_DWORD Value: 1

Fix: F-45823r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "System objects: Require case insensitivity for non-Windows subsystems" to "Enabled".

b
Remote Desktop Services must limit users to one remote session.
AC-10 - Medium - CCI-000054 - V-3449 - SV-52216r2_rule
RMF Control
AC-10
Severity
Medium
CCI
CCI-000054
Version
WN12-CC-000131
Vuln IDs
  • V-3449
Rule IDs
  • SV-52216r2_rule
Allowing multiple Remote Desktop Services sessions could consume resources. There is also potential to make a secondary connection to a system with compromised credentials.ECLO-1, ECLO-2
Checks: C-46962r1_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\Windows NT\Terminal Services\ Value Name: fSingleSessionPerUser Type: REG_DWORD Value: 1

Fix: F-45235r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Connections -> "Restrict Remote Desktop Services users to a single Remote Desktop Services Session" to "Enabled".

b
Remote Desktop Services must always prompt a client for passwords upon connection.
IA-11 - Medium - CCI-002038 - V-3453 - SV-52898r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-CC-000099
Vuln IDs
  • V-3453
Rule IDs
  • SV-52898r1_rule
This setting controls the ability of users to supply passwords automatically as part of their remote desktop connection. Disabling this setting would allow anyone to use the stored credentials in a connection item to connect to the terminal server.
Checks: C-47215r2_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\Windows NT\Terminal Services\ Value Name: fPromptForPassword Type: REG_DWORD Value: 1

Fix: F-45824r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Always prompt for password upon connection" to "Enabled".

b
Remote Desktop Services must be configured with the client connection encryption set to the required level.
AC-17 - Medium - CCI-000068 - V-3454 - SV-52899r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000068
Version
WN12-CC-000100
Vuln IDs
  • V-3454
Rule IDs
  • SV-52899r2_rule
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions.
Checks: C-47216r2_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\Windows NT\Terminal Services\ Value Name: MinEncryptionLevel Type: REG_DWORD Value: 3

Fix: F-45825r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Set client connection encryption level" to "Enabled" and "High Level".

b
Remote Desktop Services must be configured to use session-specific temporary folders.
CM-6 - Medium - CCI-000366 - V-3455 - SV-52900r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000104
Vuln IDs
  • V-3455
Rule IDs
  • SV-52900r1_rule
If a communal temporary folder is used for remote desktop sessions, it might be possible for users to access other users' temporary folders. If this setting is enabled, only one temporary folder is used for all remote desktop sessions. Per session temporary folders must be established.
Checks: C-47217r2_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\Windows NT\Terminal Services\ Value Name: PerSessionTempDir Type: REG_DWORD Value: 1

Fix: F-45826r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Temporary Folders -> "Do not use temporary folders per session" to "Disabled".

b
Remote Desktop Services must delete temporary folders when a session is terminated.
CM-6 - Medium - CCI-000366 - V-3456 - SV-52901r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000103
Vuln IDs
  • V-3456
Rule IDs
  • SV-52901r1_rule
Remote desktop session temporary folders must always be deleted after a session is over to prevent hard disk clutter and potential leakage of information. This setting controls the deletion of the temporary folders when the session is terminated.
Checks: C-47218r3_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\Windows NT\Terminal Services\ Value Name: DeleteTempDirsOnExit Type: REG_DWORD Value: 1

Fix: F-45827r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Temporary Folders -> "Do not delete temp folder upon exit" to "Disabled".

b
Remote Desktop Services must be configured to set a time limit for disconnected sessions.
SC-10 - Medium - CCI-001133 - V-3457 - SV-52902r2_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
WN12-CC-000102
Vuln IDs
  • V-3457
Rule IDs
  • SV-52902r2_rule
This setting controls how long a session will remain open if it is unexpectedly terminated. Such sessions use system resources and must be terminated as soon as possible.
Checks: C-47219r2_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\Windows NT\Terminal Services\ Value Name: MaxDisconnectionTime Type: REG_DWORD Value: 0x0000ea60 (60000)

Fix: F-45828r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Session Time Limits -> "Set time limit for disconnected sessions" to "Enabled", and "End a disconnected session" to "1 minute".

b
Remote Desktop Services must be configured to disconnect an idle session after the specified time period.
SC-10 - Medium - CCI-001133 - V-3458 - SV-52903r2_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
WN12-CC-000101
Vuln IDs
  • V-3458
Rule IDs
  • SV-52903r2_rule
This setting controls how long a session may be idle before it is automatically disconnected from the server. Users must disconnect if they plan on being away from their terminals for extended periods of time. Idle sessions must be disconnected after 15 minutes.
Checks: C-47220r2_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 Registry Path: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MaxIdleTime Type: REG_DWORD Value: 0x000dbba0 (900000) or less but not 0

Fix: F-45829r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Session Time Limits -> "Set time limit for active but idle Remote Desktop Services sessions" to "Enabled", and the "Idle session limit" to 15 minutes or less, excluding "0", which equates to "Never".

b
Group Policies must be refreshed in the background if the user is logged on.
CM-6 - Medium - CCI-000366 - V-3469 - SV-52906r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000029
Vuln IDs
  • V-3469
Rule IDs
  • SV-52906r1_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.
Checks: C-47221r2_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 exists but is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\system\ Value Name: DisableBkGndGroupPolicy Type: REG_DWORD Value: 0

Fix: F-45832r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy -> "Turn off background refresh of Group Policy" to "Disabled".

b
The system must be configured to prevent unsolicited remote assistance offers.
SC-4 - Medium - CCI-001090 - V-3470 - SV-52917r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN12-CC-000058
Vuln IDs
  • V-3470
Rule IDs
  • SV-52917r1_rule
Remote assistance allows another user to view or take control of the local session of a user. Unsolicited remote assistance is help that is offered by the remote user. This may allow unauthorized parties access to the resources on the computer.
Checks: C-47222r2_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\Windows NT\Terminal Services\ Value Name: fAllowUnsolicited Type: REG_DWORD Value: 0

Fix: F-45843r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Configure Offer Remote Assistance" to "Disabled".

a
If the time service is configured, it must use an authorized time server.
AU-8 - Low - CCI-001891 - V-3472 - SV-52919r2_rule
RMF Control
AU-8
Severity
Low
CCI
CCI-001891
Version
WN12-CC-000069
Vuln IDs
  • V-3472
Rule IDs
  • SV-52919r2_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 must 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 must synchronize with a secure, authorized time source.
Checks: C-47224r3_chk

Review the following registry values: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \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" If the following, this is a finding: "Type" has a value of "NTP" or "Allsync" AND the "NTPServer" value is set to "time.windows.com" or other unauthorized server. If the following, this not 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 it would not be a finding unless this is changed.

Fix: F-45845r1_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 must be configured to use Safe DLL Search Mode.
CM-6 - Medium - CCI-000366 - V-3479 - SV-52920r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000045
Vuln IDs
  • V-3479
Rule IDs
  • SV-52920r1_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 system's path environment variable. An unauthorized DLL, inserted into an application's working directory, could allow malicious code to be run on the system. Setting this policy value forces the system to search the %Systemroot% for the DLL before searching the current directory or the rest of the path.
Checks: C-47225r2_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: \System\CurrentControlSet\Control\Session Manager\ Value Name: SafeDllSearchMode Value Type: REG_DWORD Value: 1

Fix: F-45846r2_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". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b
Windows Media Player must be configured to prevent automatic checking for updates.
CM-11 - Medium - CCI-001812 - V-3480 - SV-53130r1_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN12-CC-000122
Vuln IDs
  • V-3480
Rule IDs
  • SV-53130r1_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.
Checks: C-47436r1_chk

Windows Media Player is not installed by default. If it is not installed, this is NA. 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\WindowsMediaPlayer\ Value Name: DisableAutoupdate Type: REG_DWORD Value: 1

Fix: F-46056r1_fix

If Windows Media Player is installed, configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> "Prevent Automatic Updates" to "Enabled".

b
Media Player must be configured to prevent automatic Codec downloads.
CM-11 - Medium - CCI-001812 - V-3481 - SV-52921r1_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN12-UC-000013
Vuln IDs
  • V-3481
Rule IDs
  • SV-52921r1_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.
Checks: C-47226r2_chk

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

Fix: F-45847r1_fix

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

b
Necessary services must be documented to maintain a baseline to determine if additional, unnecessary services have been added to a system.
CM-7 - Medium - CCI-000381 - V-3487 - SV-52218r2_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-GE-000021
Vuln IDs
  • V-3487
Rule IDs
  • SV-52218r2_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.
Checks: C-46963r2_chk

Required services will vary between organizations, and on the role of the individual system. Organizations will develop their own list of services which will be documented and justified with the ISSO. The site's list will be provided for any security review. Services common to multiple systems can be addressed in one document. Exceptions for individual systems should be identified separately by system. Individual services specifically required to be disabled per the STIG are identified in separate requirements. If the site has not documented the services required for their system(s), this is a finding. The following can be used to view the services on a system: Run "Services.msc". Services for Windows Server 2012 roles are managed automatically, adding those necessary for a particular role. The following lists the default services for a baseline installation as a reference. This can be used as a basis for documenting the services necessary. Default Installation Name - Startup Type Application Experience - Manual (Trigger Start) Application Identity - Manual (Trigger Start) Application Information - Manual Application Layer Gateway Service - Manual Application Management - Manual Background Intelligent Transfer Service - Automatic (Delayed Start) Background Tasks Infrastructure Service - Automatic Base Filtering Engine - Automatic Certificate Propagation - Manual CNG Key Isolation - Manual (Trigger Start) COM+ Event System - Automatic COM+ System Application - Manual Computer Browser - Disabled Credential Manager - Manual Cryptographic Services - Automatic DCOM Server Process Launcher - Automatic Device Association Service - Manual (Trigger Start) Device Install Service - Manual (Trigger Start) Device Setup Manager - Manual (Trigger Start) DHCP Client - Automatic Diagnostic Policy Service - Automatic (Delayed Start) Diagnostic Service Host - Manual Diagnostic System Host - Manual Distributed Link Tracking Client - Automatic Distributed Transaction Coordinator - Automatic (Delayed Start) DNS Client - Automatic (Trigger Start) Encrypting File System (EFS) - Manual (Trigger Start) Extensible Authentication Protocol - Manual Function Discovery Provider Host - Manual Function Discovery Resource Publication - Manual Group Policy Client - Automatic (Trigger Start) Health Key and Certificate Management - Manual Human Interface Device Access - Manual (Trigger Start) Hyper-V Data Exchange Service - Manual (Trigger Start) Hyper-V Guest Shutdown Service - Manual (Trigger Start) Hyper-V Heartbeat Service - Manual (Trigger Start) Hyper-V Remote Desktop Virtualization Service - Manual (Trigger Start) Hyper-V Time Synchronization Service - Manual (Trigger Start) Hyper-V Volume Shadow Copy Requestor - Manual (Trigger Start) IKE and AuthIP IPsec Keying Modules - Manual (Trigger Start) Interactive Services Detection - Manual Internet Connection Sharing (ICS) - Disabled IP Helper - Automatic IPsec Policy Agent - Manual (Trigger Start) KDC Proxy Server service (KPS) - Manual KtmRm for Distributed Transaction Coordinator - Manual (Trigger Start) Link-Layer Topology Discovery Mapper - Manual Local Session Manager - Automatic Microsoft iSCSI Initiator Service - Manual Microsoft Software Shadow Copy Provider - Manual Multimedia Class Scheduler - Manual Net.Tcp Port Sharing Service - Disabled Netlogon - Manual Network Access Protection Agent - Manual Network Connections - Manual Network Connectivity Assistant - Manual (Trigger Start) Network List Service - Manual Network Location Awareness - Automatic Network Store Interface Service - Automatic Optimize drives - Manual Performance Counter DLL Host - Manual Performance Logs & Alerts - Manual Plug and Play - Manual Portable Device Enumerator Service - Manual (Trigger Start) Power - Automatic Print Spooler - Automatic Printer Extensions and Notifications - Manual Problem Reports and Solutions Control Panel Support - Manual Remote Access Auto Connection Manager - Manual Remote Access Connection Manager - Manual Remote Desktop Configuration - Manual Remote Desktop Services - Manual Remote Desktop Services UserMode Port Redirector - Manual Remote Procedure Call (RPC) - Automatic Remote Procedure Call (RPC) Locator - Manual Remote Registry - Automatic (Trigger Start) Resultant Set of Policy Provider - Manual Routing and Remote Access - Disabled RPC Endpoint Mapper - Automatic Secondary Logon - Manual Secure Socket Tunneling Protocol Service - Manual Security Accounts Manager - Automatic Server - Automatic Shell Hardware Detection - Automatic Smart Card - Disabled Smart Card Removal Policy - Manual SNMP Trap - Manual Software Protection - Automatic (Delayed Start, Trigger Start) Special Administration Console Helper - Manual Spot Verifier - Manual (Trigger Start) SSDP Discovery - Disabled Superfetch - Manual System Event Notification Service - Automatic Task Scheduler - Automatic TCP/IP NetBIOS Helper - Automatic (Trigger Start) Telephony - Manual Themes - Automatic Thread Ordering Server - Manual UPnP Device Host - Disabled User Access Logging Service - Automatic (Delayed Start) User Profile Service - Automatic Virtual Disk - Manual Volume Shadow Copy - Manual Windows All-User Install Agent - Manual (Trigger Start) Windows Audio - Manual Windows Audio Endpoint Builder - Manual Windows Color System - Manual Windows Driver Foundation - User-mode Driver Framework - Manual (Trigger Start) Windows Error Reporting Service - Manual (Trigger Start) Windows Event Collector - Manual Windows Event Log - Automatic Windows Firewall - Automatic Windows Font Cache Service - Automatic Windows Installer - Manual Windows Licensing Monitoring Service - Automatic Windows Management Instrumentation - Automatic Windows Modules Installer - Manual Windows Remote Management (WS-Management) - Automatic Windows Store Service (WSService) - Manual (Trigger Start) Windows Time - Manual (Trigger Start) Windows Update - Manual WinHTTP Web Proxy Auto-Discovery Service - Manual Wired AutoConfig - Manual WMI Performance Adapter - Manual Workstation - Automatic

Fix: F-45237r1_fix

Document the services required for the system to operate. Remove or disable any services that are not required.

b
The system must be configured to meet the minimum session security requirement for NTLM SSP-based servers.
CM-6 - Medium - CCI-000366 - V-3666 - SV-52922r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000070
Vuln IDs
  • V-3666
Rule IDs
  • SV-52922r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.
Checks: C-47227r2_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: \System\CurrentControlSet\Control\Lsa\MSV1_0\ Value Name: NTLMMinServerSec Value Type: REG_DWORD Value: 0x20080000 (537395200)

Fix: F-45848r1_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" and "Require 128-bit encryption" (all options selected).

a
The system must generate an audit event when the audit log reaches a percentage of full threshold.
AU-5 - Low - CCI-000139 - V-4108 - SV-52923r2_rule
RMF Control
AU-5
Severity
Low
CCI
CCI-000139
Version
WN12-SO-000049
Vuln IDs
  • V-4108
Rule IDs
  • SV-52923r2_rule
When the audit log reaches a given percent full, an audit event is written to the security log. It is recorded as a successful audit event under the category of System. This option may be especially useful if the audit logs are set to be cleared manually.
Checks: C-47228r2_chk

If the system is configured to write to an audit server, or is configured to automatically archive full logs, this is NA. 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: \System\CurrentControlSet\Services\Eventlog\Security\ Value Name: WarningLevel Value Type: REG_DWORD Value: 90 (or less)

Fix: F-45849r2_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. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be configured to prevent IP source routing.
CM-6 - Low - CCI-000366 - V-4110 - SV-52924r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000038
Vuln IDs
  • V-4110
Rule IDs
  • SV-52924r1_rule
Configuring the system to disable IP source routing protects against spoofing.
Checks: C-47229r2_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: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: DisableIPSourceRouting Value Type: REG_DWORD Value: 2

Fix: F-45850r2_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". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be configured to prevent Internet Control Message Protocol (ICMP) redirects from overriding Open Shortest Path First (OSPF) generated routes.
CM-6 - Low - CCI-000366 - V-4111 - SV-52925r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000039
Vuln IDs
  • V-4111
Rule IDs
  • SV-52925r1_rule
Allowing ICMP redirect of routes can lead to traffic not being routed properly. When disabled, this forces ICMP to be routed via shortest path first.
Checks: C-47230r2_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: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: EnableICMPRedirect Value Type: REG_DWORD Value: 0

Fix: F-45851r2_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". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be configured to disable the Internet Router Discovery Protocol (IRDP).
SC-5 - Low - CCI-002385 - V-4112 - SV-52926r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN12-SO-000044
Vuln IDs
  • V-4112
Rule IDs
  • SV-52926r1_rule
The Internet Router Discovery Protocol (IRDP) is used to detect and configure default gateway addresses on the computer. If a router is impersonated on a network, traffic could be routed through the compromised system.
Checks: C-47231r2_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: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: PerformRouterDiscovery Value Type: REG_DWORD Value: 0

Fix: F-45852r2_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". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be configured to limit how often keep-alive packets are sent.
SC-5 - Low - CCI-002385 - V-4113 - SV-52927r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN12-SO-000041
Vuln IDs
  • V-4113
Rule IDs
  • SV-52927r1_rule
This setting controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact. A higher value could allow an attacker to cause a denial of service with numerous connections.
Checks: C-47232r2_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: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: KeepAliveTime Value Type: REG_DWORD Value: 300000 (or less)

Fix: F-45853r2_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. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be configured to ignore NetBIOS name release requests except from WINS servers.
SC-5 - Low - CCI-002385 - V-4116 - SV-52928r2_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN12-SO-000043
Vuln IDs
  • V-4116
Rule IDs
  • SV-52928r2_rule
Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the servers WINS resolution capability.
Checks: C-47233r3_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: \SYSTEM\CurrentControlSet\Services\Netbt\Parameters\ Value Name: NoNameReleaseOnDemand Value Type: REG_DWORD Value: 1

Fix: F-45854r3_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "MSS: (NoNameReleaseOnDemand) Allow the computer to ignore NetBIOS name release requests except from WINS servers" to "Enabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b
Domain controllers must require LDAP access signing.
SC-8 - Medium - CCI-002418 - V-4407 - SV-51140r3_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000090-DC
Vuln IDs
  • V-4407
Rule IDs
  • SV-51140r3_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 could 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.
Checks: C-46574r2_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: \System\CurrentControlSet\Services\NTDS\Parameters\ Value Name: LDAPServerIntegrity Value Type: REG_DWORD Value: 2

Fix: F-44297r1_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
Domain controllers must be configured to allow reset of machine account passwords.
CM-6 - Low - CCI-000366 - V-4408 - SV-51141r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000091-DC
Vuln IDs
  • V-4408
Rule IDs
  • SV-51141r2_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.ECSC-1
Checks: C-46575r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RefusePasswordChange Value Type: REG_DWORD Value: 0

Fix: F-44298r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain controller: Refuse machine account password changes" to "Disabled".

a
The system must limit how many times unacknowledged TCP data is retransmitted.
SC-5 - Low - CCI-002385 - V-4438 - SV-52929r2_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN12-SO-000048
Vuln IDs
  • V-4438
Rule IDs
  • SV-52929r2_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 is no longer able to respond to legitimate requests.
Checks: C-47234r3_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: \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: TcpMaxDataRetransmissions Value Type: REG_DWORD Value: 3 (or less)

Fix: F-45855r3_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 default)" to "3" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a
The system must be 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-52930r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000046
Vuln IDs
  • V-4442
Rule IDs
  • SV-52930r1_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 on to the system before the lock takes effect.
Checks: C-47235r2_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\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: ScreenSaverGracePeriod Value Type: REG_SZ Value: 5 (or less)

Fix: F-45856r2_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. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

c
Unauthorized remotely accessible registry paths and sub-paths must not be configured.
SC-4 - High - CCI-001090 - V-4443 - SV-52931r2_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000057
Vuln IDs
  • V-4443
Rule IDs
  • SV-52931r2_rule
The registry is integral to the function, security, and stability of the Windows system. Some processes may require remote access to the registry. This setting controls which registry paths and sub-paths are accessible from a remote computer. These registry paths must be limited, as they could give unauthorized individuals access to the registry.
Checks: C-47236r3_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: \System\CurrentControlSet\Control\SecurePipeServers\Winreg\AllowedPaths\ Value Name: Machine Value Type: REG_MULTI_SZ Value: see below 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 Legitimate applications may add entries to this registry value. If an application requires these entries to function properly and is documented with the ISSO, this would not be a finding. Documentation must contain supporting information from the vendor's instructions.

Fix: F-45857r2_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" with the following entries: 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

a
Optional Subsystems must not be permitted to operate on the system.
CM-7 - Low - CCI-000381 - V-4445 - SV-52219r2_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN12-SO-000088
Vuln IDs
  • V-4445
Rule IDs
  • SV-52219r2_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, and anything the second user does with that process will be performed with the privileges of the first user.HKECSC-1
Checks: C-46964r1_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: \System\CurrentControlSet\Control\Session Manager\Subsystems\ Value Name: Optional Value Type: REG_MULTI_SZ Value: (Blank)

Fix: F-45238r1_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 must be enforced.
CM-6 - Medium - CCI-000366 - V-4446 - SV-52221r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000087
Vuln IDs
  • V-4446
Rule IDs
  • SV-52221r2_rule
Software restriction policies help to protect users and computers from executing unauthorized code such as viruses and Trojans horses. This setting must be enabled to enforce certificate rules in software restriction policies.HKECSC-1
Checks: C-46965r1_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\Windows\Safer\CodeIdentifiers\ Value Name: AuthenticodeEnabled Value Type: REG_DWORD Value: 1

Fix: F-45239r1_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 Remote Desktop Session Host must require secure RPC communications.
AC-17 - Medium - CCI-001453 - V-4447 - SV-52932r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-001453
Version
WN12-CC-000130
Vuln IDs
  • V-4447
Rule IDs
  • SV-52932r2_rule
Allowing unsecure RPC communication exposes the system 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.
Checks: C-47237r2_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\Windows NT\Terminal Services\ Value Name: fEncryptRPCTraffic Type: REG_DWORD Value: 1

Fix: F-45858r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Require secure RPC communication" to "Enabled".

b
Group Policy objects must be reprocessed even if they have not changed.
CM-6 - Medium - CCI-000366 - V-4448 - SV-52933r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000028
Vuln IDs
  • V-4448
Rule IDs
  • SV-52933r1_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.
Checks: C-47238r3_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\Windows\Group Policy\{35378EAC-683F-11D2-A89A-00C04FBBCFA2}\ Value Name: NoGPOListChanges Type: REG_DWORD Value: 0

Fix: F-45859r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy -> "Configure registry policy processing" to "Enabled" and select the option "Process even if the Group Policy objects have not changed".

b
Outgoing secure channel traffic must be encrypted or signed.
SC-8 - Medium - CCI-002418 - V-6831 - SV-52934r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000012
Vuln IDs
  • V-6831
Rule IDs
  • SV-52934r2_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.
Checks: C-47239r2_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: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireSignOrSeal Value Type: REG_DWORD Value: 1

Fix: F-45860r1_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 SMB client must be configured to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-6832 - SV-52935r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000028
Vuln IDs
  • V-6832
Rule IDs
  • SV-52935r2_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB client will only communicate with an SMB server that performs SMB packet signing.
Checks: C-47240r2_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: \System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-45861r1_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 SMB server must be configured to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-6833 - SV-52936r2_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN12-SO-000032
Vuln IDs
  • V-6833
Rule IDs
  • SV-52936r2_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will only communicate with an SMB client that performs SMB packet signing.
Checks: C-47241r2_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: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-45862r1_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
Anonymous access to Named Pipes and Shares must be restricted.
SC-4 - High - CCI-001090 - V-6834 - SV-52937r1_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN12-SO-000058
Vuln IDs
  • V-6834
Rule IDs
  • SV-52937r1_rule
Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in "Network access: Named Pipes that can be accessed anonymously" and "Network access: Shares that can be accessed anonymously", both of which must be blank under other requirements.
Checks: C-47242r2_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: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RestrictNullSessAccess Value Type: REG_DWORD Value: 1

Fix: F-45863r1_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
Passwords must, at a minimum, be 14 characters.
IA-5 - Medium - CCI-000205 - V-6836 - SV-52938r2_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000205
Version
WN12-AC-000007
Vuln IDs
  • V-6836
Rule IDs
  • SV-52938r2_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 compromising the device, information, or the local network.
Checks: C-47243r2_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy. If the value for the "Minimum password length," is less than "14" characters, this is a finding.

Fix: F-45864r1_fix

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

b
System mechanisms must be implemented to enforce automatic expiration of passwords.
IA-5 - Medium - CCI-000199 - V-6840 - SV-52939r3_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN12-GE-000016
Vuln IDs
  • V-6840
Rule IDs
  • SV-52939r3_rule
Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered or cracked.
Checks: C-47245r4_chk

Run the DUMPSEC utility. Select "Dump Users as Table" from the "Report" menu. Select the following fields, and click "Add" for each entry: UserName SID PswdExpires AcctDisabled Groups If any accounts have "No" in the "PswdExpires" column, this is a finding. The following are exempt from this requirement: Application Accounts Domain accounts requiring smart card (CAC/PIV) The following PowerShell command may be used on domain controllers to list accounts with the Password Never Expires flag: Search-ADAccount -PasswordNeverExpires -UsersOnly

Fix: F-45865r2_fix

Configure all passwords to expire. Ensure "Password never expires" is not checked on any accounts. Document any exceptions with the ISSO.

c
Accounts must require passwords.
IA-2 - High - CCI-000764 - V-7002 - SV-52940r1_rule
RMF Control
IA-2
Severity
High
CCI
CCI-000764
Version
WN12-GE-000015
Vuln IDs
  • V-7002
Rule IDs
  • SV-52940r1_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. Accounts on a system must require passwords.
Checks: C-47246r2_chk

Verify all accounts require passwords. Run the DUMPSEC utility. Select "Dump Users as Table" from the "Report" menu. Select the following fields, and click "Add" for each entry: UserName SID PswdRequired AcctDisabled Groups If any accounts have "No" in the "PswdRequired" column, this is a finding. Some built-in or application-generated accounts (e.g., Guest, IWAM_, IUSR, etc.) may 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".

Fix: F-45866r2_fix

Ensure all accounts are configured 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
Active Directory data files must have proper access control permissions.
AC-6 - High - CCI-002235 - V-8316 - SV-51175r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-AD-000001-DC
Vuln IDs
  • V-8316
Rule IDs
  • SV-51175r2_rule
Improper access permissions for directory data related files could allow unauthorized users to read, modify, or delete directory data or audit trails.ECAN-1, ECCD-1, ECCD-2
Checks: C-46601r1_chk

Verify the permissions on the content of the NTDS directory. Open the registry editor (regedit). Navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NTDS\Parameters. Note the directory locations in the values for: Database log files path DSA Database file By default they will be \Windows\NTDS. If the locations are different, the following will need to be run for each. Open an elevated command prompt (Win+x, Command Prompt (Admin)). Navigate to the NTDS directory (\Windows\NTDS by default). Run "icacls *.*". If the permissions on each file are not as follows, this is a finding. NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) (I) - permission inherited from parent container (F) - full access File Explorer should not be used to attempt to view permissions of the NTDS folder. Accessing the folder through File Explorer will change the permissions on the folder.

Fix: F-44332r1_fix

Ensure the permissions on NTDS database and log files are maintained as follows. NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) (I) - permission inherited from parent container (F) - full access

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-51180r2_rule
RMF Control
SC-2
Severity
Medium
CCI
CCI-001082
Version
WN12-AD-000006-DC
Vuln IDs
  • V-8317
Rule IDs
  • SV-51180r2_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.DCSP-1
Checks: C-46606r1_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-44337r1_fix

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

b
Time synchronization must be enabled on the domain controller.
AU-8 - Medium - CCI-001891 - V-8322 - SV-51181r2_rule
RMF Control
AU-8
Severity
Medium
CCI
CCI-001891
Version
WN12-AD-000007-DC
Vuln IDs
  • V-8322
Rule IDs
  • SV-51181r2_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.ECTM-1, ECTM-2
Checks: C-46607r2_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-44338r1_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-51182r3_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-AD-000008-DC
Vuln IDs
  • V-8324
Rule IDs
  • SV-51182r3_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.ECTM-1, ECTM-2
Checks: C-48703r2_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-47824r1_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-51183r2_rule
RMF Control
SC-2
Severity
Medium
CCI
CCI-001082
Version
WN12-AD-000009-DC
Vuln IDs
  • V-8326
Rule IDs
  • SV-51183r2_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.DCSP-1
Checks: C-46609r1_chk

Review the roles and services the domain controller is running. 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. Installed roles can be displayed by viewing Server Roles in the Add (or Remove) Roles and Features wizard. (Cancel before any changes are made.) Determine if any additional server roles are installed. A basic domain controller set up will include the following: -Active Directory Domain Services -DNS Server -File and Storage Services If any roles not requiring installation on a domain controller are installed, 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-44340r1_fix

Remove additional roles or 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-51184r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-AD-000010-DC
Vuln IDs
  • V-8327
Rule IDs
  • SV-51184r2_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.ECTM-1, ECTM-2
Checks: C-46610r1_chk

Run "services.msc" to display the Services console. Verify the Startup Type for the following Windows services: - Active Directory Domain Services - DFS Replication - DNS Client - DNS server - Group Policy Client - Intersite Messaging - Kerberos Key Distribution Center - NetLogon - 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-44341r1_fix

Ensure the following services that are critical for directory server operation are configured for automatic startup. - Active Directory Domain Services - DFS Replication - DNS Client - DNS server - Group Policy Client - Intersite Messaging - Kerberos Key Distribution Center - NetLogon - Windows Time (not required if another time synchronization tool is implemented to start automatically)

a
The system must be configured to prevent the display of the last username on the logon screen.
CM-6 - Low - CCI-000366 - V-11806 - SV-52941r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000018
Vuln IDs
  • V-11806
Rule IDs
  • SV-52941r1_rule
Displaying the username of the last logged on user provides half of the userid/password equation that an unauthorized person would need to gain access. The username of the last user to log on to a system must not be displayed.
Checks: C-47247r2_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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DontDisplayLastUserName Value Type: REG_DWORD Value: 1

Fix: F-45867r1_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-51150r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-UR-000043-DC
Vuln IDs
  • V-12780
Rule IDs
  • SV-51150r2_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.ECAN-1, ECCD-1, ECCD-2, ECLP-1
Checks: C-46584r1_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-44307r1_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
Passwords for the built-in Administrator account must be changed at least annually or when a member of the administrative team leaves the organization.
CM-6 - Medium - CCI-000366 - V-14225 - SV-52942r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-00-000007
Vuln IDs
  • V-14225
Rule IDs
  • SV-52942r2_rule
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the password. Passwords for the built-in Administrator account must be changed at least annually or when any member of the administrative team leaves the organization.
Checks: C-47248r2_chk

Determine if any system administrators have left the organization within the last year. Run the DUMPSEC utility. Select "Dump Users as Table" from the "Report" menu. Select the following fields, and click "Add" for each entry: UserName SID PwsdLastSetTime If the built-in Administrator account has a date older than one year in the "PwsdLastSetTime" column, this is a finding. If any system administrators has left the organization within the last year and the "PwsdLastSetTime" field reflects the built-in Administrator account password was not changed at that time, this is a finding.

Fix: F-45868r1_fix

Change the built-in Administrator account password at least annually or whenever an administrator leaves the organization.

b
Auditing the Access of Global System Objects must be turned off.
SC-5 - Medium - CCI-001095 - V-14228 - SV-53129r1_rule
RMF Control
SC-5
Severity
Medium
CCI
CCI-001095
Version
WN12-SO-000007
Vuln IDs
  • V-14228
Rule IDs
  • SV-53129r1_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. This setting prevents the system from setting up a default system access control list for certain system objects, which could create a very large number of security events, filling the security log in Windows and making it difficult to identify actual issues.
Checks: C-47435r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: AuditBaseObjects Value Type: REG_DWORD Value: 0

Fix: F-46055r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Audit the access of global system objects" to "Disabled".

b
Auditing of Backup and Restore Privileges must be turned off.
SC-5 - Medium - CCI-001095 - V-14229 - SV-52943r1_rule
RMF Control
SC-5
Severity
Medium
CCI
CCI-001095
Version
WN12-SO-000008
Vuln IDs
  • V-14229
Rule IDs
  • SV-52943r1_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. This setting prevents the system from generating audit events for every file backed up or restored, which could fill the security log in Windows, making it difficult to identify actual issues.
Checks: C-47249r3_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: \System\CurrentControlSet\Control\Lsa\ Value Name: FullPrivilegeAuditing Value Type: REG_BINARY Value: 0

Fix: F-45869r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Audit the use of Backup and Restore privilege" to "Disabled".

b
Audit policy using subcategories must be enabled.
AU-12 - Medium - CCI-000169 - V-14230 - SV-52944r1_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000169
Version
WN12-SO-000009
Vuln IDs
  • V-14230
Rule IDs
  • SV-52944r1_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. This setting allows administrators to enable more precise auditing capabilities.
Checks: C-47250r2_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: \System\CurrentControlSet\Control\Lsa\ Value Name: SCENoApplyLegacyAuditPolicy Value Type: REG_DWORD Value: 1

Fix: F-45870r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" to "Enabled".

a
IPSec Exemptions must be limited.
CM-6 - Low - CCI-000366 - V-14232 - SV-52945r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-SO-000042
Vuln IDs
  • V-14232
Rule IDs
  • SV-52945r1_rule
IPSec exemption filters allow specific traffic that may be needed by the system for such things as Kerberos authentication. This setting configures Windows for specific IPSec exemptions.
Checks: C-47251r2_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: \System\CurrentControlSet\Services\IPSEC\ Value Name: NoDefaultExempt Value Type: REG_DWORD Value: 3

Fix: F-45871r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (NoDefaultExempt) Configure IPSec exemptions for various types of network traffic" to "Only ISAKMP is exempt (recommended for Windows Server 2003)". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b
User Account Control approval mode for the built-in Administrator must be enabled.
IA-11 - Medium - CCI-002038 - V-14234 - SV-52946r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-SO-000077
Vuln IDs
  • V-14234
Rule IDs
  • SV-52946r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the built-in Administrator account so that it runs in Admin Approval Mode.
Checks: C-47252r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: FilterAdministratorToken Value Type: REG_DWORD Value: 1

Fix: F-45872r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Admin Approval Mode for the Built-in Administrator account" to "Enabled".

b
User Account Control must, at minimum, prompt administrators for consent.
SC-3 - Medium - CCI-001084 - V-14235 - SV-52947r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000078
Vuln IDs
  • V-14235
Rule IDs
  • SV-52947r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the elevation requirements for logged on administrators to complete a task that requires raised privileges.
Checks: C-47253r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ConsentPromptBehaviorAdmin Value Type: REG_DWORD Value: 4 (Prompt for consent) 3 (Prompt for credentials) 2 (Prompt for consent on the secure desktop) 1 (Prompt for credentials on the secure desktop)

Fix: F-45873r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode" to "Prompt for consent". More secure options for this setting would also be acceptable (e.g., Prompt for credentials, Prompt for consent (or credentials) on the secure desktop).

b
User Account Control must automatically deny standard user requests for elevation.
IA-11 - Medium - CCI-002038 - V-14236 - SV-52948r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-SO-000079
Vuln IDs
  • V-14236
Rule IDs
  • SV-52948r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting controls the behavior of elevation when requested by a standard user account.
Checks: C-47254r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ConsentPromptBehaviorUser Value Type: REG_DWORD Value: 0

Fix: F-45874r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Behavior of the elevation prompt for standard users" to "Automatically deny elevation requests".

b
User Account Control must be configured to detect application installations and prompt for elevation.
SC-3 - Medium - CCI-001084 - V-14237 - SV-52949r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000080
Vuln IDs
  • V-14237
Rule IDs
  • SV-52949r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting requires Windows to respond to application installation requests by prompting for credentials.
Checks: C-47255r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: EnableInstallerDetection Value Type: REG_DWORD Value: 1

Fix: F-45875r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Detect application installations and prompt for elevation" to "Enabled".

b
User Account Control must only elevate UIAccess applications that are installed in secure locations.
SC-3 - Medium - CCI-001084 - V-14239 - SV-52950r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000082
Vuln IDs
  • V-14239
Rule IDs
  • SV-52950r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures Windows to only allow applications installed in a secure location on the file system, such as the Program Files or the Windows\System32 folders, to run with elevated privileges.
Checks: C-47256r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: EnableSecureUIAPaths Value Type: REG_DWORD Value: 1

Fix: F-45876r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Only elevate UIAccess applications that are installed in secure locations" to "Enabled".

b
User Account Control must run all administrators in Admin Approval Mode, enabling UAC.
IA-11 - Medium - CCI-002038 - V-14240 - SV-52951r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-SO-000083
Vuln IDs
  • V-14240
Rule IDs
  • SV-52951r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting enables UAC.
Checks: C-47257r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: EnableLUA Value Type: REG_DWORD Value: 1

Fix: F-45877r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Run all administrators in Admin Approval Mode" to "Enabled".

b
User Account Control must switch to the secure desktop when prompting for elevation.
SC-3 - Medium - CCI-001084 - V-14241 - SV-52952r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000084
Vuln IDs
  • V-14241
Rule IDs
  • SV-52952r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting ensures that the elevation prompt is only used in secure desktop mode.
Checks: C-47258r2_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: PromptOnSecureDesktop Value Type: REG_DWORD Value: 1

Fix: F-45878r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Switch to the secure desktop when prompting for elevation" to "Enabled".

b
User Account Control must virtualize file and registry write failures to per-user locations.
SC-3 - Medium - CCI-001084 - V-14242 - SV-52953r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000085
Vuln IDs
  • V-14242
Rule IDs
  • SV-52953r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures non-UAC-compliant applications to run in virtualized file and registry entries in per-user locations, allowing them to run.
Checks: C-47259r1_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: EnableVirtualization Value Type: REG_DWORD Value: 1

Fix: F-45879r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Virtualize file and registry write failures to per-user locations" to "Enabled".

b
The system must require username and password to elevate a running application.
SC-3 - Medium - CCI-001084 - V-14243 - SV-52955r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-CC-000077
Vuln IDs
  • V-14243
Rule IDs
  • SV-52955r1_rule
Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This setting configures the system to always require users to type in a username and password to elevate a running application.
Checks: C-47261r3_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\Microsoft\Windows\CurrentVersion\Policies\CredUI\ Value Name: EnumerateAdministrators Type: REG_DWORD Value: 0

Fix: F-45881r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Credential User Interface -> "Enumerate administrator accounts on elevation" to "Disabled".

b
Passwords must not be saved in the Remote Desktop Client.
IA-11 - Medium - CCI-002038 - V-14247 - SV-52958r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-CC-000096
Vuln IDs
  • V-14247
Rule IDs
  • SV-52958r1_rule
Saving passwords in the Remote Desktop Client could allow an unauthorized user to establish a remote desktop session to another system. The system must be configured to prevent users from saving passwords in the Remote Desktop Client.
Checks: C-47264r2_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\Windows NT\Terminal Services\ Value Name: DisablePasswordSaving Type: REG_DWORD Value: 1

Fix: F-45884r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Connection Client -> "Do not allow passwords to be saved" to "Enabled".

b
Local drives must be prevented from sharing with Remote Desktop Session Hosts. (Remote Desktop Services Role).
SC-4 - Medium - CCI-001090 - V-14249 - SV-52959r1_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN12-CC-000098
Vuln IDs
  • V-14249
Rule IDs
  • SV-52959r1_rule
Preventing users from sharing the local drives on their client computers to Remote Session Hosts that they access helps reduce possible exposure of sensitive data.
Checks: C-47265r2_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\Windows NT\Terminal Services\ Value Name: fDisableCdm Type: REG_DWORD Value: 1

Fix: F-45885r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow drive redirection" to "Enabled".

b
Printing over HTTP must be prevented.
CM-7 - Medium - CCI-000381 - V-14259 - SV-52997r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000039
Vuln IDs
  • V-14259
Rule IDs
  • SV-52997r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the client computer from printing over HTTP, which allows the computer to print to printers on the intranet as well as the Internet.
Checks: C-47304r2_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\Windows NT\Printers\ Value Name: DisableHTTPPrinting Type: REG_DWORD Value: 1

Fix: F-45924r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off printing over HTTP" to "Enabled".

b
Downloading print driver packages over HTTP must be prevented.
CM-7 - Medium - CCI-000381 - V-14260 - SV-52998r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000032
Vuln IDs
  • V-14260
Rule IDs
  • SV-52998r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the computer from downloading print driver packages over HTTP.
Checks: C-47305r2_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\Windows NT\Printers\ Value Name: DisableWebPnPDownload Type: REG_DWORD Value: 1

Fix: F-45925r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off downloading of print drivers over HTTP" to "Enabled".

b
Windows must be prevented from using Windows Update to search for drivers.
CM-11 - Medium - CCI-001812 - V-14261 - SV-53000r1_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN12-CC-000047
Vuln IDs
  • V-14261
Rule IDs
  • SV-53000r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents Windows from searching Windows Update for device drivers when no local drivers for a device are present.
Checks: C-47307r2_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\Windows\DriverSearching\ Value Name: DontSearchWindowsUpdate Type: REG_DWORD Value: 1

Fix: F-45927r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Windows Update device driver searching" to "Enabled".

b
Zone information must be preserved when saving attachments.
CM-6 - Medium - CCI-000366 - V-14268 - SV-53002r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-UC-000009
Vuln IDs
  • V-14268
Rule IDs
  • SV-53002r1_rule
Preserving zone of origin (internet, intranet, local, restricted) information on file attachments allows Windows to determine risk.
Checks: C-47309r2_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: SaveZoneInformation Type: REG_DWORD Value: 2

Fix: F-45929r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> "Do not preserve zone information in file attachments" to "Disabled".

b
Mechanisms for removing zone information from file attachments must be hidden.
CM-6 - Medium - CCI-000366 - V-14269 - SV-53004r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-UC-000010
Vuln IDs
  • V-14269
Rule IDs
  • SV-53004r1_rule
Preserving zone of origin (internet, intranet, local, restricted) information on file attachments allows Windows to determine risk. This setting prevents users from manually removing zone information from saved file attachments.
Checks: C-47311r2_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: HideZoneInfoOnProperties Type: REG_DWORD Value: 1

Fix: F-45931r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> "Hide mechanisms to remove zone information" to "Enabled".

b
The system must notify antivirus when file attachments are opened.
CM-6 - Medium - CCI-000366 - V-14270 - SV-53006r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-UC-000011
Vuln IDs
  • V-14270
Rule IDs
  • SV-53006r1_rule
Attaching malicious files is a known avenue of attack. This setting configures the system to notify antivirus programs when a user opens a file attachment.
Checks: C-47313r2_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: ScanWithAntiVirus Type: REG_DWORD Value: 3

Fix: F-45933r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> "Notify antivirus programs when opening attachments" to "Enabled".

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-51185r3_rule
RMF Control
SC-13
Severity
Medium
CCI
CCI-002450
Version
WN12-AD-000011-DC
Vuln IDs
  • V-14783
Rule IDs
  • SV-51185r3_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.
Checks: C-46611r1_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-44342r1_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-51186r2_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-AD-000012-DC
Vuln IDs
  • V-14797
Rule IDs
  • SV-51186r2_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.ECAN-1, ECCD-1, ECCD-2
Checks: C-46612r2_chk

At this time, this is a finding for all Windows domain controllers for sensitive or classified levels as Windows Active Directory Domain Services (AD DS) does not provide a method to restrict anonymous access to the root DSE on domain controllers. The following can be used to verify anonymous access is allowed. Open a command prompt (not elevated). Run "ldp.exe". From the Connection menu, select Bind. Clear the User, Password, and Domain fields. Select Simple bind for the Bind type, Click OK. RootDSE attributes should display, such as various namingContexts. Confirmation of anonymous access will be displayed at the end: res = ldap_simple_bind_s Authenticated as: 'NT AUTHORITY\ANONYMOUS LOGON'

Fix: F-44343r1_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-51187r2_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN12-AD-000013-DC
Vuln IDs
  • V-14798
Rule IDs
  • SV-51187r2_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.ECAN-1, ECCD-1, ECCD-2
Checks: C-46613r3_chk

Verify anonymous access is not allowed to the AD domain naming context. Open a command prompt (not elevated). Run "ldp.exe". From the Connection menu, select Bind. Clear the User, Password, and Domain fields. Select Simple bind for the Bind type, Click OK. Confirmation of anonymous access will be displayed at the end: res = ldap_simple_bind_s Authenticated as: 'NT AUTHORITY\ANONYMOUS LOGON' From the Browse menu, select Search. In the Search dialog, enter the DN of the domain naming context (generally something like "dc=disaost,dc=mil") in the Base DN field. Clear the Attributes field and select Run. Error messages should display related to bind and user not authenticated. If attribute data is displayed, anonymous access is enabled to the domain naming context and this is a finding.

Fix: F-44344r2_fix

Configure directory data (outside the root DSE) of a non-public directory to prevent anonymous access. For AD, there are multiple configuration items that could enable anonymous access. 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). The dsHeuristics option is used. This is addressed in check V-8555 in the AD Forest STIG.

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-51190r2_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000185
Version
WN12-PK-000006-DC
Vuln IDs
  • V-14820
Rule IDs
  • SV-51190r2_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, this is a CAT II finding.IAKM-1, IAKM-2, IATS-1, IATS-2
Checks: C-46616r2_chk

Verify the source of the domain controller's server certificate. Run "mmc". Select "Add/Remove Snap-in" from the File menu. Select "Certificates" in the left pane and click the "Add &gt;" button. Select "Computer Account", click "Next". Select the appropriate option for "Select the computer you want this snap-in to manage.", click "Finish". 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-44347r3_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-51188r2_rule
RMF Control
SC-10
Severity
Low
CCI
CCI-001133
Version
WN12-AD-000014-DC
Vuln IDs
  • V-14831
Rule IDs
  • SV-51188r2_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.
Checks: C-46614r2_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-44345r1_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
Active directory user accounts, including administrators, must be configured to require the use of a Common Access Card (CAC), PIV-compliant hardware token, or Alternate Logon Token (ALT) for user authentication.
IA-2 - Medium - CCI-000765 - V-15488 - SV-51192r4_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000765
Version
WN12-PK-000008-DC
Vuln IDs
  • V-15488
Rule IDs
  • SV-51192r4_rule
Smart cards such as the Common Access Card (CAC) support a two-factor authentication technique. This provides a higher level of trust in the asserted identity than use of the username and password for authentication.
Checks: C-66223r3_chk

Verify active directory user accounts, including administrators, have "Smart card is required for interactive logon" selected. Run "PowerShell". Enter the following: "Get-ADUser -Filter {(Enabled -eq $True) -and (SmartcardLogonRequired -eq $False)} | FT Name" ("DistinguishedName" may be substituted for "Name" for more detailed output.) If any user accounts are listed, this is a finding. Alternately: To view sample accounts in "Active Directory Users and Computers" (Available from various menus or run "dsa.msc"): Select the Organizational Unit (OU) where the User accounts are located. (By default this is the Users node; however, accounts may be under other organization-defined OUs.) Right click the sample User account and select "Properties". Select the "Account" tab. If any User accounts do not have "Smart card is required for interactive logon" checked in the "Account Options" area, this is a finding.

Fix: F-71587r2_fix

Configure all user accounts, including administrator accounts, in Active Directory to enable the option "Smart card is required for interactive logon". Run "Active Directory Users and Computers" (Available from various menus or run "dsa.msc"): Select the Organizational Unit (OU) where the user accounts are located. (By default this is the Users node; however, accounts may be under other organization-defined OUs.) Right click the user account and select "Properties". Select the "Account" tab. Check "Smart card is required for interactive logon" in the "Account Options" area.

b
The HBSS McAfee Agent must be installed.
CM-6 - Medium - CCI-000366 - V-15505 - SV-53010r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000019
Vuln IDs
  • V-15505
Rule IDs
  • SV-53010r1_rule
Checks: C-47316r2_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. Also verify that the Service "McAfee Framework Service" is running. If either of these conditions does not exist, this is a finding.

Fix: F-45937r1_fix

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

b
Windows Peer-to-Peer networking services must be turned off.
CM-7 - Medium - CCI-000381 - V-15666 - SV-53012r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000003
Vuln IDs
  • V-15666
Rule IDs
  • SV-53012r1_rule
Peer-to-Peer applications can allow unauthorized access to a system and exposure of sensitive data. This setting will turn off the Microsoft Peer-to-Peer Networking Service.
Checks: C-47319r2_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\Peernet\ Value Name: Disabled Type: REG_DWORD Value: 1

Fix: F-45939r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Microsoft Peer-to-Peer Networking Services -> "Turn off Microsoft Peer-to-Peer Networking Services" to "Enabled".

b
Network Bridges must be prohibited in Windows.
CM-7 - Medium - CCI-000381 - V-15667 - SV-53014r2_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000004
Vuln IDs
  • V-15667
Rule IDs
  • SV-53014r2_rule
A Network Bridge can connect two or more network segments, allowing unauthorized access or exposure of sensitive data. This setting prevents a Network Bridge from being installed and configured.
Checks: C-47321r2_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\Windows\Network Connections\ Value Name: NC_AllowNetBridge_NLA Type: REG_DWORD Value: 0

Fix: F-45941r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Prohibit installation and configuration of Network Bridge on your DNS domain network" to "Enabled".

a
Event Viewer Events.asp links must be turned off.
CM-7 - Low - CCI-000381 - V-15672 - SV-53017r1_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN12-CC-000033
Vuln IDs
  • V-15672
Rule IDs
  • SV-53017r1_rule
Viewing events is a function of administrators, who must not access the internet with privileged accounts. This setting will disable Events.asp hyperlinks in Event Viewer to prevent links to the internet from within events.
Checks: C-47324r2_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\EventViewer\ Value Name: MicrosoftEventVwrDisableLinks Type: REG_DWORD Value: 1

Fix: F-45944r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Event Viewer "Events.asp" links" to "Enabled".

b
The Internet File Association service must be turned off.
CM-7 - Medium - CCI-000381 - V-15674 - SV-53021r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000038
Vuln IDs
  • V-15674
Rule IDs
  • SV-53021r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents unhandled file associations from using the Microsoft Web service to find an application.
Checks: C-47327r2_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\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: NoInternetOpenWith Type: REG_DWORD Value: 1

Fix: F-45947r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Internet File Association service" to "Enabled".

b
Attachments must be prevented from being downloaded from RSS feeds.
CM-6 - Medium - CCI-000366 - V-15682 - SV-53040r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000105
Vuln IDs
  • V-15682
Rule IDs
  • SV-53040r1_rule
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.
Checks: C-47346r2_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\Internet Explorer\Feeds\ Value Name: DisableEnclosureDownload Type: REG_DWORD Value: 1

Fix: F-45966r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> RSS Feeds -> "Prevent downloading of enclosures" to "Enabled".

b
File Explorer shell protocol must run in protected mode.
CM-6 - Medium - CCI-000366 - V-15683 - SV-53045r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000091
Vuln IDs
  • V-15683
Rule IDs
  • SV-53045r1_rule
The shell protocol will limit the set of folders applications can open when run in protected mode. Restricting files an application can open to a limited set of folders increases the security of Windows.
Checks: C-47350r2_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\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: PreXPSP2ShellProtocolBehavior Type: REG_DWORD Value: 0

Fix: F-45971r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Turn off shell protocol protected mode" to "Disabled".

b
Users must be notified if a web-based program attempts to install software.
CM-6 - Medium - CCI-000366 - V-15684 - SV-53056r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-CC-000117
Vuln IDs
  • V-15684
Rule IDs
  • SV-53056r2_rule
Users must be aware of attempted program installations. This setting ensures users are notified if a web-based program attempts to install software.
Checks: C-47359r2_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\Windows\Installer\ Value Name: SafeForScripting Type: REG_DWORD Value: 0

Fix: F-45982r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Prevent Internet Explorer security prompt for Windows Installer scripts" to "Disabled".

b
Users must be prevented from changing installation options.
CM-11 - Medium - CCI-001812 - V-15685 - SV-53061r1_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN12-CC-000115
Vuln IDs
  • V-15685
Rule IDs
  • SV-53061r1_rule
Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.
Checks: C-47366r2_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\Windows\Installer\ Value Name: EnableUserControl Type: REG_DWORD Value: 0

Fix: F-45986r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Allow user control over installs" to "Disabled".

a
Nonadministrators must be prevented from applying vendor-signed updates.
CM-11 - Low - CCI-001812 - V-15686 - SV-53065r1_rule
RMF Control
CM-11
Severity
Low
CCI
CCI-001812
Version
WN12-CC-000118
Vuln IDs
  • V-15686
Rule IDs
  • SV-53065r1_rule
Uncontrolled system updates can introduce issues to a system. This setting will prevent users from applying vendor-signed updates (though they may be from a trusted source).
Checks: C-47371r2_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\Windows\Installer\ Value Name: DisableLUAPatching Type: REG_DWORD Value: 1

Fix: F-45991r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Prohibit non-administrators from applying vendor signed updates" to "Enabled".

a
Users must not be presented with Privacy and Installation options on first use of Windows Media Player.
CM-6 - Low - CCI-000366 - V-15687 - SV-53069r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-CC-000121
Vuln IDs
  • V-15687
Rule IDs
  • SV-53069r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents users from being presented with Privacy and Installation options on first use of Windows Media Player, which could enable some communication with the vendor.
Checks: C-47374r2_chk

Windows Media Player is not installed by default. If it is not installed, this is NA. 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\WindowsMediaPlayer\ Value Name: GroupPrivacyAcceptance Type: REG_DWORD Value: 1

Fix: F-45995r1_fix

If Windows Media Player is installed, configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> "Do Not Show First Use Dialog Boxes" to "Enabled".

b
The Mapper I/O network protocol (LLTDIO) driver must be disabled.
CM-7 - Medium - CCI-000381 - V-15696 - SV-53072r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000001
Vuln IDs
  • V-15696
Rule IDs
  • SV-53072r1_rule
The Mapper I/O network protocol (LLTDIO) driver allows the discovery of the connected network and allows various options to be enabled. Disabling this helps protect the system from potentially discovering and connecting to unauthorized devices.
Checks: C-47378r2_chk

If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\LLTD\ Value Name: AllowLLTDIOOndomain Value Name: AllowLLTDIOOnPublicNet Value Name: EnableLLTDIO Value Name: ProhibitLLTDIOOnPrivateNet Type: REG_DWORD Value: 0

Fix: F-45998r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Mapper I/O (LLTDIO) driver" to "Disabled".

b
The Responder network protocol driver must be disabled.
CM-7 - Medium - CCI-000381 - V-15697 - SV-53081r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000002
Vuln IDs
  • V-15697
Rule IDs
  • SV-53081r1_rule
The Responder network protocol driver allows a computer to be discovered and located on a network. Disabling this helps protect the system from potentially being discovered and connected to by unauthorized devices.
Checks: C-47387r2_chk

If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\LLTD\ Value Name: AllowRspndrOndomain Value Name: AllowRspndrOnPublicNet Value Name: EnableRspndr Value Name: ProhibitRspndrOnPrivateNet Type: REG_DWORD Value: 0

Fix: F-46007r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Responder (RSPNDR) driver" to "Disabled".

b
The configuration of wireless devices using Windows Connect Now must be disabled.
CM-7 - Medium - CCI-000381 - V-15698 - SV-53085r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000012
Vuln IDs
  • V-15698
Rule IDs
  • SV-53085r1_rule
Windows Connect Now allows the discovery and configuration of devices over wireless. Wireless devices must be managed. If a rogue device is connected to a system, there is potential for sensitive information to be compromised.
Checks: C-47391r2_chk

If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\WCN\Registrars\ Value Name: DisableFlashConfigRegistrar Value Name: DisableInBand802DOT11Registrar Value Name: DisableUPnPRegistrar Value Name: DisableWPDRegistrar Value Name: EnableRegistrars Type: REG_DWORD Value: 0

Fix: F-46011r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Windows Connect Now -> "Configuration of wireless settings using Windows Connect Now" to "Disabled".

b
The Windows Connect Now wizards must be disabled.
CM-7 - Medium - CCI-000381 - V-15699 - SV-53089r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000013
Vuln IDs
  • V-15699
Rule IDs
  • SV-53089r1_rule
Windows Connect Now provides wizards for tasks such as "Set up a wireless router or access point" and must not be available to users. Functions such as these may allow unauthorized connections to a system and the potential for sensitive information to be compromised.
Checks: C-47395r2_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\Windows\WCN\UI\ Value Name: DisableWcnUi Type: REG_DWORD Value: 1

Fix: F-46015r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Windows Connect Now -> "Prohibit access of the Windows Connect Now wizards" to "Enabled".

b
Remote access to the Plug and Play interface must be disabled for device installation.
CM-7 - Medium - CCI-000381 - V-15700 - SV-53094r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000019
Vuln IDs
  • V-15700
Rule IDs
  • SV-53094r1_rule
Remote access to the Plug and Play interface could potentially allow connections by unauthorized devices. This setting configures remote access to the Plug and Play interface and must be disabled.
Checks: C-47400r2_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\Windows\DeviceInstall\Settings\ Value Name: AllowRemoteRPC Type: REG_DWORD Value: 0

Fix: F-46020r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Allow remote access to the Plug and Play interface" to "Disabled".

a
A system restore point must be created when a new device driver is installed.
CM-6 - Low - CCI-000366 - V-15701 - SV-53099r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-CC-000021
Vuln IDs
  • V-15701
Rule IDs
  • SV-53099r1_rule
A system restore point allows a rollback if an issue is encountered when a new device driver is installed.
Checks: C-47405r2_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\Windows\DeviceInstall\Settings\ Value Name: DisableSystemRestore Type: REG_DWORD Value: 0

Fix: F-46025r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Prevent creation of a system restore point during device activity that would normally prompt creation of a restore point" to "Disabled".

a
An Error Report must not be sent when a generic device driver is installed.
CM-7 - Low - CCI-000381 - V-15702 - SV-53105r1_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN12-CC-000020
Vuln IDs
  • V-15702
Rule IDs
  • SV-53105r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents an error report from being sent when a generic device driver is installed.
Checks: C-47410r2_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\Windows\DeviceInstall\Settings\ Value Name: DisableSendGenericDriverNotFoundToWER Type: REG_DWORD Value: 1

Fix: F-46030r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Do not send a Windows error report when a generic driver is installed on a device" to "Enabled".

a
Users must not be prompted to search Windows Update for device drivers.
CM-11 - Low - CCI-001812 - V-15703 - SV-53115r1_rule
RMF Control
CM-11
Severity
Low
CCI
CCI-001812
Version
WN12-CC-000026
Vuln IDs
  • V-15703
Rule IDs
  • SV-53115r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents users from being prompted to search Windows Update for device drivers.
Checks: C-47421r2_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\Windows\DriverSearching\ Value Name: DontPromptForWindowsUpdate Type: REG_DWORD Value: 1

Fix: F-46041r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Driver Installation -> "Turn off Windows Update device driver search prompt" to "Enabled".

a
Errors in handwriting recognition on tablet PCs must not be reported to Microsoft.
CM-7 - Low - CCI-000381 - V-15704 - SV-53116r1_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN12-CC-000035
Vuln IDs
  • V-15704
Rule IDs
  • SV-53116r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents errors in handwriting recognition on tablet PCs from being reported to Microsoft.
Checks: C-47422r2_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\Windows\HandwritingErrorReports\ Value Name: PreventHandwritingErrorReports Type: REG_DWORD Value: 1

Fix: F-46042r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off handwriting recognition error reporting" to "Enabled".

b
Users must be prompted to authenticate on resume from sleep (on battery).
IA-11 - Medium - CCI-002038 - V-15705 - SV-53131r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-CC-000054
Vuln IDs
  • V-15705
Rule IDs
  • SV-53131r1_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (on battery).
Checks: C-47437r1_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\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\ Value Name: DCSettingIndex Type: REG_DWORD Value: 1

Fix: F-46057r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Power Management -> Sleep Settings -> "Require a password when a computer wakes (on battery)" to "Enabled".

b
The user must be prompted to authenticate on resume from sleep (plugged in).
IA-11 - Medium - CCI-002038 - V-15706 - SV-53132r1_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN12-CC-000055
Vuln IDs
  • V-15706
Rule IDs
  • SV-53132r1_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (plugged in).
Checks: C-47438r1_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\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\ Value Name: ACSettingIndex Type: REG_DWORD Value: 1

Fix: F-46058r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Power Management -> Sleep Settings -> "Require a password when a computer wakes (plugged in)" to "Enabled".

a
Remote Assistance log files must be generated.
CM-6 - Low - CCI-000366 - V-15707 - SV-53133r1_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-CC-000062
Vuln IDs
  • V-15707
Rule IDs
  • SV-53133r1_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. This setting will turn on session logging for Remote Assistance connections.
Checks: C-47439r1_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\Windows NT\Terminal Services\ Value Name: LoggingEnabled Type: REG_DWORD Value: 1

Fix: F-46059r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Turn on session logging" to "Enabled".

b
Microsoft Active Protection Service membership must be disabled.
CM-7 - Medium - CCI-000381 - V-15713 - SV-53134r2_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000111
Vuln IDs
  • V-15713
Rule IDs
  • SV-53134r2_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this feature will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting disables Microsoft Active Protection Service membership and reporting.
Checks: C-47440r4_chk

If the following registry value exists and is set to "1" (Basic) or "2" (Advanced), this is a finding: If the registry value does not exist, this is not a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows Defender\SpyNet\ Value Name: SpyNetReporting Type: REG_DWORD Value: 1 or 2 = a Finding

Fix: F-62313r2_fix

Windows 2012 R2: Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender -> MAPS -> "Join Microsoft MAPS" to "Disabled". Windows 2012: Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender -> "Configure Microsoft Active Protection Service Reporting" to "Disabled".

b
The system must be configured to save Error Reporting events and messages to the system event log.
SI-11 - Medium - CCI-001312 - V-15714 - SV-53135r2_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001312
Version
WN12-ER-000003
Vuln IDs
  • V-15714
Rule IDs
  • SV-53135r2_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. This setting ensures that Error Reporting events will be saved in the system event log.ECSC-1
Checks: C-47441r3_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\Windows\Windows Error Reporting\ Value Name: LoggingDisabled Type: REG_DWORD Value: 0

Fix: F-46061r3_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Error Reporting -> "Disable logging" to "Disabled".

b
The system must be configured to generate error reports.
SI-11 - Medium - CCI-001312 - V-15715 - SV-71721r1_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001312
Version
WN12-ER-000002
Vuln IDs
  • V-15715
Rule IDs
  • SV-71721r1_rule
Enabling Windows Error Reporting generates information useful to system administrators and forensics analysts for diagnosing system problems and investigating intrusions. If Windows Error Reporting is turned off, valuable system diagnostic and vulnerability information may be lost.ECSC-1
Checks: C-58139r1_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\Windows\Windows Error Reporting\ Value Name: Disabled Type: REG_DWORD Value: 0

Fix: F-62501r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Error Reporting -> "Disable Windows Error Reporting" to "Disabled".

b
The system must be configured to allow a local or DOD-wide collector to request additional error reporting diagnostic data to be sent.
SI-11 - Medium - CCI-001312 - V-15717 - SV-53136r2_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001312
Version
WN12-ER-000004
Vuln IDs
  • V-15717
Rule IDs
  • SV-53136r2_rule
Sending additional error reporting data provides valuable system diagnostic and vulnerability information that would otherwise not be generated nor collected. This setting controls whether additional data in support of error reports can be sent to a local or DOD-wide reporting site.ECSC-1
Checks: C-58153r1_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\Windows\Windows Error Reporting\ Value Name: DontSendAdditionalData Type: REG_DWORD Value: 0

Fix: F-62513r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Error Reporting -> "Do not send additional data" to "Disabled".

a
Turning off File Explorer heap termination on corruption must be disabled.
SC-5 - Low - CCI-002385 - V-15718 - SV-53137r1_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN12-CC-000090
Vuln IDs
  • V-15718
Rule IDs
  • SV-53137r1_rule
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.
Checks: C-47443r1_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\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Type: REG_DWORD Value: 0

Fix: F-46063r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Turn off heap termination on corruption" to "Disabled".

a
Users must be notified if the logon server was inaccessible and cached credentials were used.
CM-6 - Low - CCI-000366 - V-15719 - SV-53138r3_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN12-CC-000119
Vuln IDs
  • V-15719
Rule IDs
  • SV-53138r3_rule
Notifying a user whether cached credentials were used may make them aware of connection issues.
Checks: C-61745r2_chk

If the system is not a member of a domain, this is NA. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ReportControllerMissing Type: REG_DWORD Value: 1

Fix: F-66509r2_fix

If the system is not a member of a domain, this is NA. Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Logon Options >> "Report when logon server was not available during user logon" to "Enabled".

b
Windows Media Digital Rights Management (DRM) must be prevented from accessing the Internet.
CM-7 - Medium - CCI-000381 - V-15722 - SV-53139r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000120
Vuln IDs
  • V-15722
Rule IDs
  • SV-53139r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This check verifies that Windows Media DRM will be prevented from accessing the Internet.
Checks: C-47445r1_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\WMDRM\ Value Name: DisableOnline Type: REG_DWORD Value: 1

Fix: F-46065r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Digital Rights Management -> "Prevent Windows Media DRM Internet Access" to "Enabled".

b
Users must be prevented from sharing files in their profiles.
CM-6 - Medium - CCI-000366 - V-15727 - SV-53140r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-UC-000012
Vuln IDs
  • V-15727
Rule IDs
  • SV-53140r2_rule
Allowing users to share files in their profiles may provide unauthorized access or result in the exposure of sensitive data.
Checks: C-47446r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: NoInPlaceSharing Type: REG_DWORD Value: 1

Fix: F-46066r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Network Sharing -> "Prevent users from sharing files within their profile" to "Enabled".

b
Software certificate installation files must be removed from a system.
CM-6 - Medium - CCI-000366 - V-15823 - SV-53141r2_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-GE-000020
Vuln IDs
  • V-15823
Rule IDs
  • SV-53141r2_rule
Use of software certificates and their accompanying installation files for end users to access resources is less secure than the use of hardware-based certificates.
Checks: C-47447r2_chk

Search all drives for *.p12 and *.pfx files. If any files with these extensions exist, this is a finding. 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 of noncertificate installation files from systems is not required. These must be documented with the ISSO.

Fix: F-46067r1_fix

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

b
UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.
SC-3 - Medium - CCI-001084 - V-15991 - SV-52223r2_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000086
Vuln IDs
  • V-15991
Rule IDs
  • SV-52223r2_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting prevents User Interface Accessibility programs from disabling the secure desktop for elevation prompts.ECCD-1, ECCD-2
Checks: C-46966r1_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: EnableUIADesktopToggle Value Type: REG_DWORD Value: 0

Fix: F-45241r1_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop" to "Disabled".

b
Users must be prevented from mapping local COM ports and redirecting data from the Remote Desktop Session Host to local COM ports. (Remote Desktop Services Role).
AC-17 - Medium - CCI-002314 - V-15997 - SV-52224r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-002314
Version
WN12-CC-000132
Vuln IDs
  • V-15997
Rule IDs
  • SV-52224r2_rule
Preventing the redirection of Remote Desktop session data to a client computer's COM ports helps reduce possible exposure of sensitive data.ECSC-1
Checks: C-46967r1_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\Windows NT\Terminal Services\ Value Name: fDisableCcm Type: REG_DWORD Value: 1

Fix: F-45242r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow COM port redirection" to "Enabled".

b
Users must be prevented from mapping local LPT ports and redirecting data from the Remote Desktop Session Host to local LPT ports. (Remote Desktop Services Role).
AC-17 - Medium - CCI-002314 - V-15998 - SV-52226r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-002314
Version
WN12-CC-000133
Vuln IDs
  • V-15998
Rule IDs
  • SV-52226r2_rule
Preventing the redirection of Remote Desktop session data to a client computer's LPT ports helps reduce possible exposure of sensitive data.ECSC-1
Checks: C-46968r1_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\Windows NT\Terminal Services\ Value Name: fDisableLPT Type: REG_DWORD Value: 1

Fix: F-45244r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow LPT port redirection" to "Enabled".

b
Users must be prevented from redirecting Plug and Play devices to the Remote Desktop Session Host. (Remote Desktop Services Role).
AC-17 - Medium - CCI-002314 - V-15999 - SV-52229r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-002314
Version
WN12-CC-000135
Vuln IDs
  • V-15999
Rule IDs
  • SV-52229r2_rule
Preventing the redirection of Plug and Play devices in Remote Desktop sessions helps reduce possible exposure of sensitive data.ECSC-1
Checks: C-46969r1_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\Windows NT\Terminal Services\ Value Name: fDisablePNPRedir Type: REG_DWORD Value: 1

Fix: F-45246r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow supported Plug and Play device redirection" to "Enabled".

b
The system must be configured to ensure smart card devices can be redirected to the Remote Desktop session. (Remote Desktop Services Role).
AC-17 - Medium - CCI-002314 - V-16000 - SV-52230r2_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-002314
Version
WN12-CC-000134
Vuln IDs
  • V-16000
Rule IDs
  • SV-52230r2_rule
Enabling the redirection of smart card devices allows their use within Remote Desktop sessions.ECSC-1
Checks: C-46970r1_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\Windows NT\Terminal Services\ Value Name: fEnableSmartCard Type: REG_DWORD Value: 1

Fix: F-45247r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow smart card device redirection" to "Disabled".

a
The system must be configured to remove the Disconnect option from the Shut Down dialog box on the Remote Desktop Client. (Remote Desktop Services Role).
AC-17 - Low - CCI-002314 - V-16005 - SV-52232r2_rule
RMF Control
AC-17
Severity
Low
CCI
CCI-002314
Version
WN12-CC-000137
Vuln IDs
  • V-16005
Rule IDs
  • SV-52232r2_rule
Removing the Disconnect option from the Shut Down dialog box for Remote Desktop sessions helps prevent disconnected but active sessions from continuing to run and using resources.ECSC-1
Checks: C-46971r2_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\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: NoDisconnect Type: REG_DWORD Value: 1

Fix: F-45248r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Remote Session Environment -> "Remove "Disconnect" option from Shut Down dialog" to "Enabled".

b
Windows must elevate all applications in User Account Control, not just signed ones.
SC-3 - Medium - CCI-001084 - V-16008 - SV-53142r1_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN12-SO-000081
Vuln IDs
  • V-16008
Rule IDs
  • SV-53142r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures whether Windows elevates all applications, or only signed ones.
Checks: C-47448r1_chk

UAC requirements are NA on Server Core installations. 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\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: ValidateAdminCodeSignatures Value Type: REG_DWORD Value: 0

Fix: F-46068r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Only elevate executables that are signed and validated" to "Disabled".

b
The Windows Customer Experience Improvement Program must be disabled.
CM-7 - Medium - CCI-000381 - V-16020 - SV-53143r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-CC-000045
Vuln IDs
  • V-16020
Rule IDs
  • SV-53143r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting ensures the Windows Customer Experience Improvement Program is disabled so information is not passed to the vendor.
Checks: C-47449r1_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\SQMClient\Windows\ Value Name: CEIPEnable Type: REG_DWORD Value: 0

Fix: F-46069r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication Settings -> "Turn off Windows Customer Experience Improvement Program" to "Enabled".

b
The Windows Help Experience Improvement Program must be disabled.
CM-7 - Medium - CCI-000381 - V-16021 - SV-53144r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-UC-000007
Vuln IDs
  • V-16021
Rule IDs
  • SV-53144r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting ensures the Windows Help Experience Improvement Program is disabled to prevent information from being passed to the vendor.
Checks: C-47450r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Policies\Microsoft\Assistance\Client\1.0\ Value Name: NoImplicitFeedback Type: REG_DWORD Value: 1

Fix: F-46070r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication Settings -> "Turn off Help Experience Improvement Program" to "Enabled".

b
Windows Help Ratings feedback must be turned off.
CM-7 - Medium - CCI-000381 - V-16048 - SV-53145r1_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN12-UC-000008
Vuln IDs
  • V-16048
Rule IDs
  • SV-53145r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting ensures users cannot provide ratings feedback to Microsoft for Help content.
Checks: C-47451r1_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Policies\Microsoft\Assistance\Client\1.0\ Value Name: NoExplicitFeedback Type: REG_DWORD Value: 1

Fix: F-46071r1_fix

Configure the policy value for User Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication Settings -> "Turn off Help Ratings" to "Enabled".

c
Unauthorized accounts must not have the Debug programs user right.
AC-6 - High - CCI-002235 - V-18010 - SV-52115r2_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN12-UR-000016
Vuln IDs
  • V-18010
Rule IDs
  • SV-52115r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Debug programs" user right can attach a debugger to any process or to the kernel, providing complete access to sensitive and critical operating system components. This right is given to Administrators in the default configuration.If an application requires this user right, this can be downgraded to a CAT III if the following conditions are met: Vendor documentation must support the requirement for having the user right. The requirement must be documented with the ISSO. The application account must meet requirements for application account passwords, such as length (V-36661) and required changes frequency (V-36662).
Checks: C-46932r1_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 other than the following are granted the "Debug programs" user right, this is a finding: Administrators

Fix: F-45140r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Debug programs" to only include the following accounts or groups: Administrators

b
The service principal name (SPN) target name validation level must be turned off.
CM-6 - Medium - CCI-000366 - V-21950 - SV-53175r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000035
Vuln IDs
  • V-21950
Rule IDs
  • SV-53175r1_rule
If a service principle name (SPN) is provided by the client, it is validated against the server's list of SPNs. Implementation may disrupt file and print sharing capabilities.
Checks: C-47481r1_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: \System\CurrentControlSet\Services\LanmanServer\Parameters\ Value Name: SmbServerNameHardeningLevel Type: REG_DWORD Value: 0

Fix: F-46101r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Server SPN target name validation level" to "Off".

b
Services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity vs. authenticating anonymously.
IA-3 - Medium - CCI-000778 - V-21951 - SV-53176r1_rule
RMF Control
IA-3
Severity
Medium
CCI
CCI-000778
Version
WN12-SO-000061
Vuln IDs
  • V-21951
Rule IDs
  • SV-53176r1_rule
Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously vs. using the computer identity.
Checks: C-47482r1_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: \System\CurrentControlSet\Control\LSA\ Value Name: UseMachineId Type: REG_DWORD Value: 1

Fix: F-46102r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow Local System to use computer identity for NTLM" to "Enabled".

b
NTLM must be prevented from falling back to a Null session.
CM-6 - Medium - CCI-000366 - V-21952 - SV-53177r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000062
Vuln IDs
  • V-21952
Rule IDs
  • SV-53177r1_rule
NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.
Checks: C-47483r1_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: \System\CurrentControlSet\Control\LSA\MSV1_0\ Value Name: allownullsessionfallback Type: REG_DWORD Value: 0

Fix: F-46103r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow LocalSystem NULL session fallback" to "Disabled".

b
PKU2U authentication using online identities must be prevented.
CM-6 - Medium - CCI-000366 - V-21953 - SV-53178r1_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN12-SO-000063
Vuln IDs
  • V-21953
Rule IDs
  • SV-53178r1_rule
PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined systems. Authentication will be centrally managed with Windows user accounts.
Checks: C-47484r1_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: \System\CurrentControlSet\Control\LSA\pku2u\ Value Name: AllowOnlineID Type: REG_DWORD Value: 0

Fix: F-46104r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow PKU2U authentication requests to this computer to use online identities" to "Disabled".

b
The use of DES encryption suites must not be allowed for Kerberos encryption.
IA-7 - Medium - CCI-000803 - V-21954 - SV-53179r2_rule
RMF Control
IA-7
Severity
Medium
CCI
CCI-000803
Version
WN12-SO-000064
Vuln IDs
  • V-21954
Rule IDs
  • SV-53179r2_rule
Certain encryption types are no longer considered secure. By default, Windows 2012/R2 does not use the DES encryption suites. If the configuration of allowed Kerberos encryption suites is needed, the DES encryption suites must not be included.
Checks: C-61749r2_chk

Verify whether the registry key below exists. If it does not exist or the value is "0", this is not a finding. If the registry key exists and contains a value other than "0", continue below. The values are determined by the selection of encryption suites in the policy Computer Configuration &gt;&gt; Windows Settings &gt;&gt; Security Settings &gt;&gt; Local Policies &gt;&gt; Security Options &gt;&gt; "Network Security: Configure encryption types allowed for Kerberos". Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Kerberos\Parameters\ Value Name: SupportedEncryptionTypes Type: REG_DWORD Due to the number of possible combinations that may include the DES encryption types, it is not possible to include all acceptable values as viewed directly in the registry. If the registry key does exist, the value must be converted to binary to determine configuration of specific bits. This will determine whether this is a finding. Note the value for the registry key. For example, when all suites, including the DES suites are selected, the value will be "0x7fffffff (2147483647)". Open the Windows calculator (Run/Search for "calc"). Select "View", then "Programmer". Select "Dword" and either "Hex" or "Dec". Enter the appropriate form of the value found for the registry key (e.g., Hex - enter 0x7fffffff, Dec - enter 2147483647) Select "Bin". The returned value may vary in length, up to 32 characters. If the either of 2 right most characters are "1", this is a finding. If the both of 2 right most characters are "0", this is not a finding.

Fix: F-66513r3_fix

The default system configuration does not use DES encryption for Kerberos and supports this requirement. If Kerberos encryption types must be configured, ensure the following are not selected: DES_CBC_CRC DES_CBC_MD5 If the policy for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Configure encryption types allowed for Kerberos" is configured, only the following selections are allowed: RC4_HMAC_MD5 AES128_HMAC_SHA1 AES256_HMAC_SHA1 Future encryption types