Title

Windows Server 2019 Deny access to this computer from the network 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 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.

Check Content

This applies to domain controllers. A separate version applies to other systems. 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 For server core installations, run the following command: Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt Review the text file. If the following SIDs are not defined for the "SeDenyNetworkLogonRight" user right, this is a finding. S-1-5-32-546 (Guests)

Fix Text

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

Additional Identifiers

Rule ID: SV-205667r569188_rule

Vulnerability ID: V-205667

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.