Title

The Deny log on locally user right on workstations must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems. (Cat II impact)

Discussion

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.

Check Content

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

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on locally" to include the following. Domain Systems Only: Enterprise Admins Group Domain Admins Group All Systems: Guests Group

Additional Identifiers

Rule ID: SV-47103r3_rule

Vulnerability ID: V-26485

Group Title: Deny log on locally

Expert Comments

CCIs tied to check.

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