Windows Server 2019 Add workstations to domain user right must only be assigned to the Administrators group on domain controllers.

Documentable No

Rule ID SV-205744r958726_rule

CCI References

CCI-002235

Discussion

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Add workstations to domain" right may add computers to a domain. This could result in unapproved or incorrectly configured systems being added to a domain.

Check Procedure

This applies to domain controllers. It is NA for 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 any accounts or groups other than the following are granted the "Add workstations to domain" right, this is a finding.

- Administrators

For server core installations, run the following command:

Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt

Review the text file.

If any SIDs other than the following are granted the "SeMachineAccountPrivilege" user right, this is a finding.

S-1-5-32-544 (Administrators)

Fix Action

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Add workstations to domain" to include only the following accounts or groups:

- Administrators