Microsoft Windows Server 2019
Windows Server 2019 Deny log on locally user right on domain controllers must be configured to prevent unauthenticated access
Description
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities.The "Deny log on locally" user right defines accounts that are prevented from logging on interactively.The Guests group must be assigned this right to prevent unauthenticated access.
Check
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 log on locally" user right, this is a finding:- Guests GroupFor server core installations, run the following command:Secedit /Export /Areas User_Rights /cfg c:\path\filename.txtReview the text file.If the following SID(s) are not defined for the "SeDenyInteractiveLogonRight" user right, this is a finding:S-1-5-32-546 (Guests)
Fix
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on locally" to include the following:- Guests Group