Finding ID | Version | Rule ID | IA Controls | Severity |
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V-26486 | WINUR-000021 | SV-47136r2_rule | ECLP-1 | Medium |
Description |
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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. If Terminal Services is not used by the organization, the Everyone group must be assigned this right to prevent all access. 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. |
STIG | Date |
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Windows Vista Security Technical Implementation Guide | 2014-04-07 |
Check Text ( None ) |
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None |
Fix Text (F-49969r1_fix) |
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Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on through Terminal Services" to include the following. If Terminal Services is not used by the organization, assign the Everyone group this right to prevent all access. If TS is used by the organization, assign the following groups. Domain Systems Only: Enterprise Admins group Domain Admins group *All Local Administrator Accounts using the DenyNetworkAccess group - see V-45589 All Systems: Guests group The related automated benchmarks will verify the group "DenyNetworkAccess" has been assigned this right on domain systems, and that it contains all local accounts that are also members of the Administrators group. Use of other methods may result in false positives requiring manual validation. *Note: Do not use the built-in Administrators group. This group must contain the appropriate accounts/groups responsible for administering the system. |