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Windows 2008 Member Server Security Technical Implementation Guide
The Windows 2008 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements were developed from DoD consensus, as well as the Windows 2008 Security Guide and security templates published by Microsoft Corporation. Comments or proposed revisions to this document should be sent via e-mail to the following address: [email protected]
Vuln
Rule
Version
CCI
Severity
Title
Description
SV-29338r1_rule
2.005
CCI-000366
HIGH
Systems must be at supported service packs (SP) or releases levels.
Systems at unsupported service packs or releases will not receive security updates for new vulnerabilities and leaves them subject to exploitation. Systems must be maintained at a service pack level supported by the vendor with new security updates.HKSystem Administrator
SV-29591r1_rule
3.007
CCI-000366
LOW
The system allows shutdown from the logon dialog box.
Displaying the shutdown button may allow individuals to shut down a system anonymously. Only authenticated users should be allowed to shut down the system. Preventing display of this button in the logon dialog box, ensures that individuals who shut down the system are authorized and tracked in the systems Security event log.HKSystem Administrator
SV-29478r1_rule
2.008
CCI-000213
HIGH
Local volumes are not formatted using NTFS.
This is a category 1 finding because the ability to set access permissions and audit critical directories and files is only available by using the NTFS file system. The capability to assign access permissions to file objects is a DOD policy requirement.
The FAT file system only provides the capability to make files read-only and hidden. The capability to change these attributes is not restricted to any users. An unauthorized individual could boot the machine from a floppy disk and gain full and unrecorded access to file data.
trueSystem AdministratorInformation Assurance Officer
SV-29634r4_rule
3.011
CCI-000048
MEDIUM
The required legal notice must be configured to display before console logon.
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.System AdministratorInformation Assurance Officer
SV-28979r3_rule
3.013
CCI-000366
LOW
Caching of logon credentials must be limited.
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.HKSystem Administrator
SV-28983r1_rule
3.018
CCI-001090
HIGH
Anonymous shares are not restricted.
This is a Category 1 finding because it allows anonymous logon users (null session connections) to list all account names and enumerate all shared resources, thus providing a map of potential points to attack the system.trueIn a mixed Windows environment this setting may cause systems with down-level operating systems to fail to authenticate, may prevent their users from changing their passwords, and may cause problems with managing printers and spools.
In domains supporting Exchange 2003 servers and versions of Outlook earlier than Outlook 2003, the setting “Network access: Do not allow anonymous enumeration of SAM accounts and shares” should be set to “Disabled” on the Domain Controller Group Policy, to allow Outlook to anonymously query the global catalog service.Information Assurance OfficerSystem Administrator
SV-28987r1_rule
4.002
CCI-000044
MEDIUM
Number of allowed bad-logon attempts does not meet minimum requirements.
The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts should be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.HKSystem Administrator
SV-29639r2_rule
4.003
CCI-000044
MEDIUM
The reset period for the account lockout counter must be configured to 15 minutes or greater on Windows 2008.
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.HKSystem Administrator
SV-29643r2_rule
4.004
CCI-002238
MEDIUM
Windows 2008 account lockout duration must be configured to 15 minutes or greater.
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.HKSystem Administrator
SV-28991r1_rule
4.009
CCI-002235
HIGH
Unauthorized users are granted right to Act as part of the operating system.
This is a Category 1 finding because users and user groups that are assigned this right can bypass all security protective mechanisms that apply to all users, including administrators. Accounts with this right should have passwords with the maximum length and be kept in a locked container accessible only by the IAO and his designated backup.
Some applications require this right to function. Any exception needs to be documented with the IAO.trueRemoving application accounts from this right may cause the applications to stop functioning.Information Assurance OfficerSystem Administrator
SV-18393r4_rule
4.010-MS
CCI-000366
MEDIUM
User rights assignments must meet minimum requirements.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities not required by the normal user.trueSystem AdministratorInformation Assurance Officer
SV-29647r1_rule
4.011
CCI-000199
MEDIUM
Maximum password age does not meet minimum requirements.
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Further, scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.HKSystem Administrator
SV-28995r1_rule
4.012
CCI-000198
MEDIUM
Minimum password age does not meet minimum requirements.
Permitting passwords to be changed in immediate succession within the same day, allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.HKSystem Administrator
SV-29652r2_rule
4.014
CCI-000200
MEDIUM
The password history must be configured to 24 passwords remembered.
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change a password to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.HKSystem Administrator
SV-29657r1_rule
4.020
CCI-000804
MEDIUM
The built-in guest account is not disabled.
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned. This account is a member of the Everyone user group and has all the rights and permissions associated with that group, which could subsequently provide access to system resources to anonymous users.System Administrator
SV-29485r1_rule
4.021
CCI-000366
MEDIUM
The built-in guest account has not been renamed.
A system faces an increased vulnerability threat if the built-in guest account is not renamed or disabled. The built-in guest account is a known user account on all Windows systems, and as initially installed, does not require a password. This can allow access to system resources by unauthorized users. This account is a member of the group Everyone and has all the rights and permissions associated with that group and could provide access to system resources to unauthorized users.System Administrator
SV-28998r1_rule
4.022
CCI-000366
MEDIUM
The built-in administrator account has not been renamed.
The built-in administrator account is a well known account. Renaming the account to an unidentified name improves the protection of this account and the system.System Administrator
SV-29488r2_rule
5.002
CCI-001849
MEDIUM
Windows event log sizes must meet minimum requirements.
Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.System AdministratorInformation Assurance Officer
SV-29507r1_rule
2.006
CCI-002165
MEDIUM
ACLs for system files and directories do not conform to minimum requirements.
Failure to properly configure file and directory permissions (ACLs) allows the possibility of unauthorized and anonymous modification to the operating system and installed applications.If a manual check of a questionable ACL setting shows that it has been set to meet or is more restrictive than minimum requirements, then it will not be counted as a finding.trueSystem Administrator
SV-29001r2_rule
4.006
CCI-001133
LOW
Users must be forcibly disconnected when their logon hours expire.
Users must not be permitted to remain logged on to the network after they have exceeded their permitted logon hours. In many cases, this indicates that a user forgot to log off before leaving for the day. However, it may also indicate that a user is attempting unauthorized access at a time when the system may be less closely monitored. Forcibly disconnecting users when logon hours expire protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.HKSystem Administrator
SV-29004r2_rule
3.034
CCI-000197
MEDIUM
Unencrypted passwords must not be sent to third-party SMB Servers.
Some non-Microsoft SMB servers only support unencrypted (plain text) password authentication. Sending plain text passwords across the network, when authenticating to an SMB server, reduces the overall security of the environment. Check with the Vendor of the SMB server to see if there is a way to support encrypted password authentication.HKSystem Administrator
SV-29007r2_rule
3.040
CCI-000366
MEDIUM
Automatic logons must be disabled.
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.System Administrator
SV-29685r2_rule
3.028
CCI-000192
MEDIUM
The built-in Windows password complexity policy must be enabled.
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.System Administrator
SV-29010r1_rule
3.029
CCI-001812
LOW
Print driver installation privilege is not restricted to administrators.
By default, the print spooler allows any user to add and to delete printer drivers on the local system. This capability should be restricted to authorized personnel.trueInformation Assurance OfficerSystem Administrator
SV-29595r3_rule
3.030
CCI-002235
HIGH
Anonymous access to the registry must be restricted.
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.trueSystem AdministratorInformation Assurance Officer
SV-29013r1_rule
3.031
CCI-000366
HIGH
The Send download LanMan compatible password option is not set to Send NTLMv2 response only\refuse LM.
The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows. It is also used to authenticate logons to stand-alone computers that are running later versions.trueSetting this to the required setting may prevent authentication with older Operating Systems and break some applications.Information Assurance OfficerSystem Administrator
SV-29016r1_rule
3.032
CCI-000366
MEDIUM
Ctrl+Alt+Del security attention sequence is Disabled.
Disabling the Ctrl+Alt+Del security attention sequence can compromise system security. Because only Windows responds to the Ctrl+Alt+Del security sequence, you can be assured that any passwords you enter following that sequence are sent only to Windows. If you eliminate the sequence requirement, malicious programs can request and receive your Windows password. Disabling this sequence also suppresses a custom logon banner.HKSystem Administrator
SV-29599r4_rule
WINUR-000017-MS
CCI-000213
MEDIUM
The Deny access to this computer from the network user right on member servers must be configured to prevent access from highly privileged domain accounts and local administrator accounts on domain systems and unauthenticated access on all systems.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.
The "Deny access to this computer from the network" right defines the accounts that are prevented from logging on from the network.
In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
Local administrator accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks.
The Guests group must be assigned this right to prevent unauthenticated access.trueSystem Administrator
SV-28472r1_rule
3.047
CCI-000366
MEDIUM
The Smart Card removal option is set to take no action.
Determines what should happen when the smart card for a logged-on user is removed from the smart card reader.
The options are:
- No Action
- Lock Workstation
- Force LogofftrueHKSystem Administrator
SV-29027r1_rule
3.046
CCI-002418
MEDIUM
The Windows SMB server is not enabled to perform SMB packet signing when possible.
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to perform SMB packet signing.HKSystem Administrator
SV-29515r1_rule
3.043
CCI-002418
MEDIUM
Outgoing secure channel traffic is not encrypted when possible.
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic should be encrypted.If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding. HKSystem Administrator
SV-29518r1_rule
3.042
CCI-002418
MEDIUM
Outgoing secure channel traffic is not signed when possible.
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, all outgoing secure channel traffic should be signed.If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding.HKSystem Administrator
SV-29030r1_rule
3.044
CCI-000366
LOW
The computer account password is prevented from being reset.
As a part of Windows security, computer account passwords are changed automatically. Enabling this policy to disable automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. If this policy is disabled, a new password for the computer account will be generated every week.HKSystem Administrator
SV-29033r1_rule
3.045
CCI-002418
MEDIUM
The Windows SMB client is not enabled to perform SMB packet signing when possible.
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.HKSystem Administrator
SV-29217r1_rule
3.052
CCI-000366
MEDIUM
Ejection of removable NTFS media is not restricted to Administrators.
Removable hard drives can be formatted and ejected by others who are not members of the Administrators Group, if they are not properly configured. Formatting and ejecting removable NTFS media should only be done by administrators.HKSystem Administrator
SV-29220r1_rule
3.054
CCI-000366
LOW
Users are not warned in advance that their passwords will expire.
This setting configures the system to display a warning to users telling them how many days are left before their password expires. By giving the user advanced warning, the user has time to construct a sufficiently strong password.HKSystem Administrator
SV-29223r1_rule
3.055
CCI-000366
LOW
The default permissions of Global system objects are not increased.
Windows system maintains a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing non-admin users to read shared objects, but not modify shared objects that they did not create.HKSystem Administrator
SV-29226r2_rule
4.028
CCI-001133
LOW
The amount of idle time required before suspending a session must be properly set.
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 re-established. This protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.HKSystem Administrator
SV-29689r1_rule
3.057
CCI-000196
MEDIUM
Reversible password encryption is not disabled.
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy should never be enabled.System Administrator
SV-29526r1_rule
3.059
CCI-001764
HIGH
The system is configured to autoplay removable media.
Autoplay begins reading from a drive as soon as you insert media in the drive. As a result, the setup file of programs and the music on audio media starts immediately. By default, Autoplay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive), and on network drives. If you enable this policy, you can also disable Autoplay on all drives.HKHKSystem Administrator
SV-16933r1_rule
3.063
CCI-001090
HIGH
Unauthorized named pipes are accessible with anonymous credentials.
This is a Category 1 finding because the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. This setting controls which of these pipes anonymous users may access.System Administrator
SV-28589r1_rule
3.064
CCI-001090
HIGH
Unauthorized registry paths are remotely accessible.
This is a Category 1 finding because it could give unauthorized individuals access to the Registry.
It controls which registry paths are accessible from a remote computer.System Administrator
SV-29704r1_rule
3.065
CCI-001090
HIGH
Unauthorized shares can be accessed anonymously.
This is a Category 1 finding because the potential for gaining unauthorized system access. Any shares listed can be accessed by any network user. This could lead to the exposure or corruption of sensitive data. Enabling this setting is very dangerous.HKSystem Administrator
SV-29230r1_rule
3.068
CCI-001090
HIGH
Solicited Remote Assistance is allowed.
This setting controls whether or not solicited remote assistance is allowed from this computer. Solicited assistance is help that is specifically requested by the user. This is a Category 1 finding because it may allow unauthorized parties access to the resources on the computer.HKSystem Administrator
SV-29234r1_rule
4.036
CCI-000366
HIGH
The use of local accounts with blank passwords is not restricted to console logons only.
This is a Category 1 finding because no accounts with blank passwords should exist on a system. The password policy should prevent this from occurring. However, if a local account with a blank password does exist, enabling this setting will limit the account to local console logon only.HKSystem Administrator
SV-29239r1_rule
5.017
CCI-000381
MEDIUM
The user is allowed to launch Windows Messenger (MSN Messenger, .NET Messenger).
This setting prevents the Windows Messenger client from being run.
Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.trueSystem AdministratorInformation Assurance Officer
SV-29244r1_rule
5.018
CCI-000381
MEDIUM
Windows Messenger (MSN Messenger, .NET messenger) is run at system startup.
This setting prevents the automatic launch of Windows Messenger at user logon.
Instant Messaging clients must be in compliance of with the Instant Messaging STIG. Windows Messenger should not be active on Windows unless the instant messaging system is a Managed Enterprise Service for unclassified data for which the DAA has approved.trueSystem AdministratorInformation Assurance Officer
SV-29708r1_rule
3.069
CCI-000366
MEDIUM
The system can be removed from the docking station without logging on first.
This setting controls the ability to undock the system without having to log on. Since the removal of a computer should be controlled, users should have to log on before undocking the computer to ensure that they have the appropriate rights to undock the system. In addition to software security settings, physical security should be in place to prevent unauthorized removal of computers.HKSystem Administrator
SV-29247r1_rule
4.043
CCI-000366
LOW
The maximum age for machine account passwords is not set to requirements.
This setting controls the maximum password age that a machine account may have. This setting should be set to no more than 30 days, ensuring the machine changes its password monthly.HKSystem Administrator
SV-29251r1_rule
4.044
CCI-002418
MEDIUM
The system is not configured to require a strong session key.
This setting controls the required strength of a session key. Setting this value in a domain containing Windows NT or older operating systems will prevent those systems from authenticating. This setting can also prevent a system from being joined to a domain.HKInformation Assurance OfficerSystem Administrator
SV-29259r1_rule
3.070
CCI-002038
MEDIUM
The system is configured to permit storage of credentials or .NET Passports.
This setting controls the storage of authentication credentials or .NET passports on the local system. Such credentials should never be stored on the local machine as that may lead to account compromise.HKSystem Administrator
SV-29264r1_rule
3.071
CCI-000366
MEDIUM
The system is configured to give anonymous users Everyone rights.
This setting helps define the permissions that anonymous users have. If this setting is enabled then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users should not have these permissions or rights.HKInformation Assurance OfficerSystem Administrator
SV-29267r1_rule
3.072
CCI-001090
MEDIUM
The system is not configured to use the Classic security model.
Windows includes two network-sharing security models - Classic and Guest only. With the classic model, local accounts must be password protected; otherwise, anyone can use guest user accounts to access shared system resources.HKSystem Administrator
SV-29270r1_rule
3.073
CCI-000196
HIGH
The system is configured to store the LAN Manager hash of the password in the SAM.
This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed. The LAN Manager hash is a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords.HKSystem AdministratorInformation Assurance Officer
SV-29273r1_rule
3.075
CCI-000366
MEDIUM
The system is not configured to recommended LDAP client signing requirements.
This setting controls the signing requirements for LDAP clients. This setting should be set to Negotiate signing or Require signing depending on the environment and type of LDAP server in use.HKSystem Administrator
SV-29530r1_rule
3.076
CCI-000366
MEDIUM
The system is not configured to meet the minimum requirement for session security for NTLM SSP based Clients.
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.trueMicrosoft warns that setting these may prevent the client from communicating with legacy servers that do not support them.
“Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager authentication level” is set to permit NTLM or LM authentication.
Information Assurance OfficerSystem Administrator
SV-29533r1_rule
3.077
CCI-002450
MEDIUM
The system is not configured to use FIPS compliant Algorithms for Encryption, Hashing, and Signing.
This setting ensures that the system uses algorithms that are FIPS compliant for encryption, hashing, and signing. FIPS compliant algorithms meet specific standards established by the U.S. Government and should be the algorithms used for all OS encryption functions.Clients with this setting enabled will not be able to communicate via digitally encrypted or signed protocols with servers that do not support these algorithms. Both the Browser and Web Server must be configured to use TLS, or the browser will not be able to connect to a secure site.HKSystem Administrator
SV-29536r2_rule
3.078
CCI-000366
MEDIUM
The system must be configured to require case insensitivity for non-Windows subsystems.
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.HKSystem Administrator
SV-16938r1_rule
5.038
CCI-000054
MEDIUM
Terminal Services is not configured to limit users to one remote session (Terminal Server Role)
This setting limits users to one remote session. It is possible, if this setting is disabled, for users to establish multiple sessions.System AdministratorInformation Assurance Officer
SV-16953r2_rule
5.043
CCI-000068
MEDIUM
Terminal Services is not configured with the client connection encryption set to the required level.
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting “High Level” will ensure encryption of Terminal Services sessions in both directions.HKSystem Administrator
SV-29101r1_rule
5.044
CCI-000366
MEDIUM
Terminal Services is configured to use a common temporary folder for all sessions (Terminal Server Role).
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the use of per session temporary folders or of a communal temporary folder. If this setting is enabled, only one temporary folder is used for all terminal services sessions. If a communal temporary folder is used, it might be possible for users to access other users temporary folders.HKSystem Administrator
SV-29103r1_rule
5.045
CCI-000366
MEDIUM
Terminal Services is not configured to delete temporary folders (Terminal Server Role).
This setting, which is located under the Temporary Folders section of the Terminal Services configuration option, controls the deletion of the temporary folders when the session is terminated. Temporary folders should always be deleted after a session is over to prevent hard disk clutter and potential leakage of information.HKSystem Administrator
SV-29606r2_rule
3.080
CCI-000366
MEDIUM
The system is configured to prevent background refresh of Group Policy.
If this setting is enabled, then Group Policy settings are not refreshed while a user is currently logged on. This could lead to instances when a user does not have the latest changes to a policy applied and is therefore operating in an insecure context.HKSystem Administrator
SV-29283r1_rule
3.082
CCI-001090
MEDIUM
The system is configured to allow unsolicited remote assistance offers.
This setting controls whether unsolicited offers of help to this computer are allowed. The list of users allowed to offer remote assistance to this system is accessed by pressing the Helpers button.HKSystem Administrator
SV-29718r1_rule
3.088
CCI-000366
MEDIUM
The system is not configured to use Safe DLL Search Mode.
The default search behavior, when an application calls a function in a Dynamic Link Library (DLL), is to search the current directory followed by the directories contained in the systems path environment variable. An unauthorized DLL inserted into an applications working directory could allow malicious code to be run on the system. Creating the following registry key and setting the appropriate value forces the system to search the %Systemroot% for the DLL before searching the current directory or the rest of the path.HKSystem Administrator
SV-40097r2_rule
5.060
CCI-001812
MEDIUM
Media Player must be configured to prevent automatic checking for updates.
Uncontrolled system updates can introduce issues to a system. The automatic check for updates performed by Windows Media Player must be disabled to ensure a constant platform and to prevent the introduction of unknown\untested software on the system.HKSystem Administrator
SV-29357r1_rule
3.089
CCI-000366
MEDIUM
The system is not configured to meet the minimum requirement for session security for NTLM SSP based Servers.
Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.trueMicrosoft warns that setting these may prevent the server from communicating with legacy clients that do not support them.
“Require NTLMv2 session security” will prevent authentication, if the “Network security: LAN Manager authentication level” is set to permit NTLM or LM authentication.
System AdministratorInformation Assurance Officer
SV-29730r2_rule
3.092
CCI-000139
LOW
The system must generate an audit event when the audit log reaches a percentage of full threshold.
Audit records may be lost if the security log becomes full. When the audit log reaches a given percent full, an audit event is written to the security log. An event is recorded as a success audit under the category of System. This option may be especially useful if the audit logs are set to be cleared manually.System AdministratorInformation Assurance OfficerECRR-1
SV-29361r1_rule
3.094
CCI-000366
LOW
The system is configured to allow IP source routing.
Protects against IP source routing spoofing.HKSystem Administrator
SV-29364r1_rule
3.095
CCI-000366
LOW
The system is configured to redirect ICMP.
When disabled, forces ICMP to be routed via shortest path first.HKSystem Administrator
SV-29367r1_rule
3.104
CCI-002385
LOW
The system is configured to detect and configure default gateway addresses.
Enables or disables the Internet Router Discovery Protocol (IRDP) used to detect and configure Default Gateway addresses on the computer.HKSystem Administrator
SV-29610r1_rule
3.097
CCI-002385
LOW
The system is configured for a greater keep-alive time than recommended.
Controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact.HKSystem Administrator
SV-29370r2_rule
3.101
CCI-002385
LOW
The system must be configured to ignore NetBIOS name release requests except from WINS servers.
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.HKSystem Administrator
SV-29373r2_rule
5.098
CCI-002385
LOW
The system must limit how many times unacknowledged TCP data is retransmitted.
In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and no longer is able to respond to legitimate requests.
HKSystem Administrator
SV-29376r1_rule
5.102
CCI-000366
LOW
This check verifies that Windows is configured to have password protection take effect within a limited time frame when the screen saver becomes active.
Allowing more than several seconds makes the computer vulnerable to a potential attack from someone walking up to the console to attempt to log onto the system before the lock takes effect.An issue was identified where the Security Options files and analysis templates included the registry value for this setting as a Dword type however it should have been a String value. This has been reported to Microsoft and the Security Options files and analysis templates included with the checklists have been corrected as of the December 2008 release.HKSystem Administrator
SV-29732r1_rule
3.108
CCI-001090
HIGH
Unauthorized registry paths and sub-paths are remotely accessible.
The registry is a database for computer configuration information, much of which is sensitive. An attacker could use this to facilitate unauthorized activities. To reduce the risk of this happening, it is also lowered by the fact that the default ACLs assigned throughout the registry are fairly restrictive and they help to protect it from access by unauthorized users.
System Administrator
SV-29733r3_rule
3.109
CCI-000186
MEDIUM
Users must be required to enter a password to access private keys stored on the computer.
Configuring this setting so that users must provide a password (distinct from their domain password) every time they use a key makes it more difficult for an attacker to access locally stored user keys, even if the attacker takes control of the user's computer and determines their logon password.
HKSystem Administrator
SV-29734r1_rule
3.110
CCI-000381
LOW
Optional Subsystems are permitted to operate on the system.
The POSIX subsystem is an Institute of Electrical and Electronic Engineers (IEEE) standard that defines a set of operating system services. The POSIX Subsystem is required if the server supports applications that use that subsystem.
The subsystem introduces a security risk relating to processes that can potentially persist across logins. That is, if a user starts a process and then logs out, there is a potential that the next user who logs in to the system could access the previous users process. This is dangerous because the process started by the first user may retain that users system privileges; anything the second user does with that process will be performed with the privileges of the first user.
trueHKSystem Administrator
SV-29735r1_rule
3.111
CCI-000366
MEDIUM
Software certificate restriction policies are not enforced.
Software restriction policies help to protect users and computers from executing unauthorized code such as viruses and Trojans horses.
HKSystem Administrator
SV-16952r1_rule
5.103
CCI-001453
MEDIUM
The Terminal Server does not require secure RPC communication (Terminal Server Role).
Allowing unsecure RPC communication exposes the server to man in the middle attacks and data disclosure attacks. A man in the middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal sensitive information.
HKSystem Administrator
SV-29379r2_rule
3.112
CCI-000366
MEDIUM
Group Policy objects are not reprocessed if they have not changed.
Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again.
HKSystem Administrator
SV-29382r1_rule
3.113
CCI-002418
MEDIUM
Outgoing secure channel traffic is not encrypted or signed.
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.HKSystem Administrator
SV-29385r1_rule
3.114
CCI-002418
MEDIUM
The Windows Server SMB client is not enabled to always perform SMB packet signing.
If this policy is enabled, it causes the Windows Server Message Block (SMB) client to perform SMB packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.If the environment is a mixed one, with down-level OSs, or maintains trusts with down-level OSs, then this to the required setting could cause compatibility problems. HKSystem Administrator
SV-29392r1_rule
3.115
CCI-002418
MEDIUM
The Windows Server SMB server is not enabled to always perform SMB packet signing.
If this policy is enabled, it causes the Windows Server Message Block (SMB) server to always perform SMB packet signing.If the environment is a mixed one, with down-level OSs, or maintains trusts with down-level OSs, then configuring this to the required setting could cause compatibility problems. HKSystem Administrator
SV-29545r1_rule
3.116
CCI-001090
HIGH
Named Pipes and Shares can be accessed anonymously.
This is a Category 1 finding because of the potential for gaining unauthorized system access.
Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems.
When this setting is disabled, Network shares can be accessed by any network user. This could lead to the exposure or corruption of sensitive data.HKSystem Administrator
SV-29389r2_rule
4.013
CCI-000205
MEDIUM
For systems utilizing a logon ID as the individual identifier, passwords must be a minimum of 14 characters in length.
Information systems not protected with strong password schemes including passwords of minimum length provide the opportunity for anyone to crack the password thus gaining access to the system and causing the device, information, or the local network to be compromised or a denial of service. Strong passwords may invite users to write down the passwords. Ensure that all users store passwords in a secured location.HKSystem AdministratorInformation Assurance Officer
SV-16967r3_rule
4.008-MS
CCI-000172
MEDIUM
Auditing records must be configured as required.
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior.HKHKSystem AdministratorInformation Assurance Officer
SV-29400r1_rule
3.119
CCI-000366
LOW
The system is configured to allow the display of the last user name on the logon screen.
The user name of the last user to log onto a system will not be displayed. This eliminates half of the Userid/Password equation that an unauthorized person would need to log on.HKSystem Administrator
SV-29402r2_rule
3.123
CCI-001095
MEDIUM
Auditing Access of Global System Objects must be turned off.
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.HKSystem AdministratorECSC-1
SV-29404r1_rule
3.124
CCI-001095
MEDIUM
Audit of Backup and Restore Privileges is not turned off.
This policy setting stops the system from generating audit events for every file backed up or restored which could fill the Security log in Windows. HKSystem Administrator
SV-29550r1_rule
3.125
CCI-000169
MEDIUM
Audit policy using subcategories is enabled.
This policy setting allows administrators to enable the more precise auditing capabilities present in Windows Vista and later.System Administrator
SV-16835r1_rule
3.127
CCI-000366
LOW
IPSec Exemptions are limited.
This check verifies that Windows is configured to limit IPSec exemptions.System Administrator
SV-29551r1_rule
3.129
CCI-002038
MEDIUM
User Account Control - Built In Admin Approval Mode
This check verifies whether the built-in Administrator account runs in Admin Approval Mode.System Administrator
SV-14846r2_rule
3.130
CCI-001084
MEDIUM
User Account Control must, at minimum, prompt administrators for consent.
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.System Administrator
SV-28479r1_rule
3.131
CCI-002038
MEDIUM
User Account Control - Behavior of elevation prompt for standard users.
This check verifies that standard users are automatically denied when attempting to complete a task that requires raised privileges.System Administrator
SV-29552r1_rule
3.132
CCI-001084
MEDIUM
User Account Control - Detect Application Installations
This check verifies whether Windows responds to application installation requests by prompting for credentials.System Administrator
SV-29553r1_rule
3.134
CCI-001084
MEDIUM
User Account Control - Elevate UIAccess applications that are in secure locations
This check verifies whether Windows only allows applications installed in a secure location, such as the Program Files or the Windows\System32 folders, on the file system to run with elevated privileges.System Administrator
SV-29099r1_rule
3.137
CCI-002038
MEDIUM
User Account Control - Run all admins in Admin Approval Mode
This check verifies that UAC has not been disabled.System Administrator
SV-29554r1_rule
3.135
CCI-001084
MEDIUM
User Account Control - Switch to secure desktop
This check verifies that the elevation prompt is only used in secure desktop mode.System Administrator
SV-29555r1_rule
3.136
CCI-001084
MEDIUM
User Account Control - Non UAC Compliant Application Virtualization
This check verifies that non UAC compliant applications will run in virtualized file and registry entries allowing them to run.System Administrator
SV-29556r2_rule
5.132
CCI-001084
MEDIUM
Administrator accounts must not be enumerated during elevation.
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 enter a username and password to elevate a running application.System Administrator
SV-29406r1_rule
5.116
CCI-002038
MEDIUM
Terminal Services / Remote Desktop Service - Prevent password saving in the Remote Desktop Client
This check verifies that the system is configured to prevent Users from saving passwords in the Remote Desktop Client.System Administrator
SV-29198r1_rule
5.118
CCI-001090
MEDIUM
Terminal Services / Remote Desktop Services - Local drives prevented from sharing with Terminal Servers (Terminal Server Role).
This check verifies that the system is configured to prevent users from sharing the local drives on their client computers to Terminal Servers that they access.System Administrator
SV-29409r2_rule
5.123-MS
CCI-001967
MEDIUM
Unauthenticated RPC clients must be restricted from connecting to the RPC server.
Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.HKSystem Administrator
SV-29413r1_rule
5.125
CCI-000381
MEDIUM
File and Folder Publish to Web option unavailable.
This check verifies that the system is configured to make the options to publish to the web unavailable from File and Folder Tasks in Windows folders.HKSystem Administrator
SV-29416r1_rule
5.126
CCI-000381
MEDIUM
Web Publishing and online ordering wizards prevented from downloading list of providers.
This check verifies that the system is configured to prevent Windows from downloading a list of providers for the Web publishing and online ordering wizards.HKSystem Administrator
SV-29418r1_rule
5.127
CCI-000381
MEDIUM
Windows Messenger prevented from collecting anonymous information.
This check verifies that the system is configured to prevent Windows Messenger from collecting anonymous information about how the Windows Messenger software and service is used.HKSystem Administrator
SV-29420r1_rule
5.128
CCI-001812
MEDIUM
Search Companion prevented from automatically downloading content updates.
This check verifies that the system is configured to prevent Search Companion from automatically downloading content updates during local and Internet searches.HKSystem Administrator
SV-29422r1_rule
5.129
CCI-000381
MEDIUM
Prevent printing over HTTP.
This check verifies that the system is configured to prevent the client computer’s ability to print over HTTP, which allows the computer to print to printers on the intranet as well as the Internet.HKSystem Administrator
SV-29424r1_rule
5.130
CCI-000381
MEDIUM
Computer prevented from downloading print driver packages over HTTP.
This check verifies that the system is configured to prevent the computer from downloading print driver packages over HTTP.HKSystem Administrator
SV-29426r1_rule
5.131
CCI-001812
MEDIUM
Windows is prevented from using Windows Update to search for drivers.
This check verifies that the system is configured to prevent Windows from searching Windows Update for device drivers when no local drivers for a device are present.HKSystem Administrator
SV-29560r3_rule
5.140
CCI-000366
MEDIUM
The HBSS McAfee Agent must be installed.
The McAfee Agent is the client side distributed component of McAfee ePolicy Orchestrator (McAfee ePO) which provides a secure communication channel between the ePO server and managed point products.System Administrator
SV-29428r1_rule
5.202
CCI-000381
MEDIUM
Windows Peer to Peer Networking
This check verifies Microsoft Peer-to-Peer Networking Service is turned off.HKSystem Administrator
SV-29430r1_rule
5.203
CCI-000381
MEDIUM
Prohibit Network Bridge in Windows
This check verifies the Network Bridge can not be installed and configured. System Administrator
SV-21932r2_rule
5.214
CCI-000381
LOW
Event Viewer Events.asp links must be turned off.
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.
System Administrator
SV-29437r1_rule
5.216
CCI-000381
LOW
Internet Connection Wizard ISP Downloads
This check verifies that the Internet Connection Wizard cannot download a list of Internet Service Providers (ISPs) from Microsoft.HKSystem Administrator
SV-29439r1_rule
5.217
CCI-000381
MEDIUM
Disable Internet File Association Service
This check verifies that unhandled file associations will not use the Microsoft Web service to find an application.HKSystem Administrator
SV-29441r1_rule
5.218
CCI-000381
LOW
Windows Registration Wizard
This check verifies that the Windows Registration Wizard is blocked from online registration.HKSystem Administrator
SV-29614r1_rule
5.219
CCI-000381
LOW
Order Prints Online
This check verifies that the “Order Prints Online” task is not available in Windows Explorer.System Administrator
SV-29443r1_rule
5.220
CCI-000381
MEDIUM
Windows Movie Maker Codec Downloads
This check verifies that the codecs will not be automatically downloaded for Windows Movie Maker.HKSystem Administrator
SV-29445r1_rule
5.221
CCI-000381
MEDIUM
Windows Movie Maker Web Links
This check verifies that the links to web sites in Windows Movie Maker will not be available.HKSystem Administrator
SV-29447r1_rule
5.222
CCI-000381
MEDIUM
Windows Movie Maker Online Hosting
This check verifies that movies can not be sent to a video hosting provider on the web.HKSystem Administrator
SV-29449r2_rule
5.223-MS
CCI-000366
LOW
The classic logon screen must be required for user logons.
The classic logon screen requires users to enter a logon name and password to access a system. The simple logon screen or Welcome screen displays usernames for selection, providing part of the necessary logon information.System Administrator
SV-29451r2_rule
5.231
CCI-000366
MEDIUM
Attachments must be prevented from being downloaded from RSS feeds.
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.HKSystem Administrator
SV-29453r1_rule
5.240
CCI-000366
MEDIUM
Windows Explorer – Shell Protocol Protected Mode
This check verifies that the shell protocol is run in protected mode. (This allows applications to only open limited folders.)HKSystem Administrator
SV-29455r1_rule
5.241
CCI-000366
MEDIUM
Windows Installer – IE Security Prompt
This check verifies that users are notified if a web-based program attempts to install software. HKSystem Administrator
SV-29457r1_rule
5.242
CCI-001812
MEDIUM
Windows Installer – User Control
This check verifies that users are prevented from changing installation options.HKSystem Administrator
SV-29459r1_rule
5.243
CCI-001812
LOW
Windows Installer – Vendor Signed Updates
This check verifies that users are prevented applying vendor signed updates.HKSystem Administrator
SV-29461r1_rule
5.248
CCI-000366
LOW
Media Player – First Use Dialog Boxes
This check verifies that users are not presented with Privacy and Installation options on first use of Windows Media Player.System Administrator
SV-29561r1_rule
5.200
CCI-000381
MEDIUM
Network – Mapper I/O Driver
This check verifies that the Mapper I/O network protocol driver is disabled.System Administrator
SV-29562r1_rule
5.201
CCI-000381
MEDIUM
Network – Responder Driver
This check verifies that the Responder network protocol driver is disabled.System Administrator
SV-29759r1_rule
5.206
CCI-000381
MEDIUM
Network – Windows Connect Now Wireless Configuration
This check verifies that the configuration of wireless devices using Windows Connect Now is disabled.System Administrator
SV-29563r1_rule
5.207
CCI-000381
MEDIUM
Network – Windows Connect Now Wizards
This check verifies that access to the Windows Connect Now wizards is disabled.System Administrator
SV-29564r1_rule
5.211
CCI-001812
LOW
Driver Install – Device Driver Search Prompt
This check verifies that users will not be prompted to search Windows Updated for device drivers.System Administrator
SV-29565r1_rule
5.226
CCI-000366
LOW
Remote Assistance – Session Logging
This check verifies that Remote Assistance log files will be generated.System Administrator
SV-29566r1_rule
5.230
CCI-000366
MEDIUM
Online Assistance – Untrusted Content
This check verifies that untrusted content is not rendered for online assistance.System Administrator
SV-29567r1_rule
5.232
CCI-000381
MEDIUM
Search – Encrypted Files Indexing
This check verifies that encrypted files are not indexed.System Administrator
SV-29572r1_rule
5.234
CCI-000381
MEDIUM
Defender – SpyNet Reporting
This check verifies that SpyNet membership is disabled.System Administrator
SV-29576r2_rule
5.239
CCI-002385
LOW
Windows Explorer – Heap Termination
This check verifies that heap termination on corruption is disabled. This may prevent Windows Explorer from terminating immediately from certain legacy plug-in applications.System Administrator
SV-29578r1_rule
5.245
CCI-000381
LOW
Windows Mail – Communities
This check verifies that Windows Mail will not check newsgroups for Communities support.System Administrator
SV-29579r1_rule
5.246
CCI-000381
MEDIUM
Windows Mail – Disable Application
This check verifies that Windows Mail will be disabled.System Administrator
SV-29580r1_rule
5.247
CCI-000381
MEDIUM
Media DRM – Internet Access
This check verifies that Windows Media Digital Rights Management will be prevented from accessing the internet.System Administrator
SV-29465r2_rule
2.021
CCI-000366
MEDIUM
Software certificate installation files must be removed from Windows 2008.
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.HKSystem Administrator
SV-16934r1_rule
3.138
CCI-001084
MEDIUM
UAC - Allow UIAccess applications to prompt for elevation without using the secure desktop
This check verifies whether User Interface Accessibility programs can automatically disable the secure desktop for elevation prompts for a standard user.System Administrator
SV-16941r1_rule
5.074
CCI-002314
MEDIUM
Terminal Services – Prevent COM Port Redirection (Terminal Server Role).
This check verifies that the system is configured to prevent users from mapping local COM ports and redirecting data from the Terminal Server to local COM ports.System Administrator
SV-16942r1_rule
5.075
CCI-002314
MEDIUM
Terminal Services – Prevent LPT Port Redirection (Terminal Server Role).
This check verifies that the system is configured to prevent users from mapping local LPT ports and redirecting data from the Terminal Server to local LPT ports.System Administrator
SV-16943r1_rule
5.076
CCI-002314
MEDIUM
Terminal Services – Prevent Plug and Play Device Redirection (Terminal Server Role).
This check verifies that the system is configured to prevent users from redirecting Plug and Play devices to the Terminal Services session.System Administrator
This check verifies that the system is configured to ensure smart card devices can be redirected to the Terminal Services session.System Administrator
SV-16945r1_rule
5.078
CCI-002314
LOW
Terminal Services – Default Only Client Printer Redirection (Terminal Server Role).
This check verifies that the system is configured to allow only the default client printer to be redirected in the Terminal Services session.System Administrator
SV-16960r1_rule
3.140
CCI-001084
MEDIUM
UAC - Application Elevations
This check verifies that Windows elevates all applications, not just signed ones.System Administrator
SV-29581r1_rule
5.254
CCI-000381
MEDIUM
Windows Customer Experience Improvement Program is disabled.
This check verifies that the Windows Customer Experience Improvement Program is disabled so information is not passed to the vendor.System Administrator
SV-29585r1_rule
2.022
CCI-001764
HIGH
Disallow AutoPlay/Autorun from Autorun.inf
This registry key will prevent the autorun.inf from executing commands.System Administrator
SV-29589r1_rule
4.005
CCI-002235
HIGH
Unapproved Users have access to Debug programs.
This is a Category 1 finding as it provides access to the kernel with complete access to sensitive and critical operating system components.trueSystem AdministratorInformation Assurance Officer
SV-33308r3_rule
2.023
CCI-002235
HIGH
Standard user accounts must only have Read permissions to the Winlogon registry key.
Permissions on the Winlogon registry key must only allow privileged accounts to change registry values. If standard users have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system.
System Administrator
SV-34591r2_rule
3.014
CCI-000048
LOW
The Windows dialog box title for the legal banner must be configured.
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.System Administrator
SV-47113r1_rule
WINUR-000018-MS
CCI-000213
MEDIUM
The Deny log on as a batch job user right on member servers must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.
The "Deny log on as a batch job" right defines accounts that are prevented from logging on to the system as a batch job, such as Task Scheduler.
In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
The Guests group must be assigned to prevent unauthenticated access.System Administrator
SV-47123r1_rule
WINUR-000019-MS
CCI-000213
MEDIUM
The Deny log on as a service user right on member servers must be configured to prevent access from highly privileged domain accounts on domain systems. No other groups or accounts must be assigned this right.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.
The "Deny log on as a service" right defines accounts that are denied log on as a service.
In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
Incorrect configurations could prevent services from starting and result in a DoS.System Administrator
SV-47106r1_rule
WINUR-000020-MS
CCI-000213
MEDIUM
The Deny log on locally user right on member servers must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.
The "Deny log on locally" right defines accounts that are prevented from logging on interactively.
In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
The Guests group must be assigned this right to prevent unauthenticated access.System Administrator
SV-47142r3_rule
WINUR-000021-MS
CCI-000213
MEDIUM
The Deny log on through Terminal Services user right on member servers must be configured to prevent access from highly privileged domain accounts and local administrator accounts on domain systems and unauthenticated access on all systems.
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities.
The "Deny log on through Terminal Services" right defines the accounts that are prevented from logging on using Terminal Services.
In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
Local administrator accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks.
The Guests group must be assigned this right to prevent unauthenticated access.System Administrator
SV-83307r1_rule
WINSV-000100
CCI-000381
MEDIUM
The Fax service must be disabled if installed.
Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.
SV-83309r2_rule
WINSV-000101
CCI-000382
MEDIUM
The Microsoft FTP service must not be installed unless required.
Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.
SV-83311r1_rule
WINSV-000103
CCI-000381
MEDIUM
The Peer Networking Identity Manager service must be disabled if installed.
Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.
SV-83313r1_rule
WINSV-000104
CCI-000381
MEDIUM
The Simple TCP/IP Services service must be disabled if installed.
Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.
SV-83315r1_rule
WINSV-000105
CCI-000382
MEDIUM
The Telnet service must be disabled if installed.
Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.
SV-42594r6_rule
WINPK-000001
CCI-000185
MEDIUM
The DoD Root CA certificates must be installed in the Trusted Root Store.
To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root Certificate Authorities (CAs). The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.System Administrator
SV-42605r7_rule
WINPK-000003
CCI-000185
MEDIUM
The DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.System Administrator
SV-42617r2_rule
WINRG-000001
CCI-002235
HIGH
Standard user accounts must only have Read permissions to the Active Setup\Installed Components registry key.
Permissions on the Active Setup\Installed Components registry key must only allow privileged accounts to add or change registry values. If standard user accounts have this capability there is a potential for programs to run with elevated privileges when a privileged user logs on to the system. System Administrator
SV-46218r1_rule
WINCC-000001
CCI-001812
HIGH
The Windows Installer Always install with elevated privileges must be disabled.
Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.
SV-47846r2_rule
WINRG-000003-MS
CCI-001084
MEDIUM
Local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain systems.
A compromised local administrator account can provide means for an attacker to move laterally between domain systems.
With User Account Control enabled, filtering the privileged token for local administrator accounts will prevent the elevated privileges of these accounts from being used over the network.
SV-52394r4_rule
WINPK-000004
CCI-000185
MEDIUM
The US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
SV-58477r2_rule
WINGE-000200-MS
CCI-000366
LOW
A group must be defined on domain systems to include all local administrator accounts.
Several user rights on domain systems require that local administrator accounts be assigned to them. This is separate from the built-in Administrators group, which also contains domain administrative accounts/groups. Defining a consistent group name allows compliance to be more easily determined.
SV-88183r1_rule
WIN00-000170
CCI-000381
MEDIUM
The Server Message Block (SMB) v1 protocol must be disabled on the SMB server.
SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant.
Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
SV-88195r2_rule
WIN00-000180
CCI-000381
MEDIUM
The Server Message Block (SMB) v1 protocol must be disabled on the SMB client.
SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant.
Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
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