Title

The Deny log on through Remote Desktop Services user right on domain controllers must be configured to prevent unauthenticated access. (Cat II impact)

Discussion

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on through Remote Desktop Services" user right defines the accounts that are prevented from logging on using Remote Desktop Services. The Guests group must be assigned this right to prevent unauthenticated access.

Check Content

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 log on through Remote Desktop Services" user right, this is a finding: Guests Group

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on through Remote Desktop Services" to include the following: Guests Group

Additional Identifiers

Rule ID: SV-226385r794630_rule

Vulnerability ID: V-226385

Group Title: SRG-OS-000080-GPOS-00048

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.