Microsoft Windows Server 2022

Windows Server 2022 must not have the Peer Name Resolution Protocol installed

STIG ID: WN22-00-000340 | SRG: SRG-OS-000095-GPOS-00049 | Severity: Medium | CCI: CCI-000381 | Vulnerability ID: V-254271

Description

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.

Check

C-57756r848627_chk

Open "PowerShell".Enter "Get-WindowsFeature | Where Name -eq PNRP".If "Installed State" is "Installed", this is a finding.An Installed State of "Available" or "Removed" is not a finding.

Fix

F-57707r848628_fix

Uninstall the "Peer Name Resolution Protocol" feature.Start "Server Manager".Select the server with the feature.Scroll down to "ROLES AND FEATURES" in the right pane.Select "Remove Roles and Features" from the drop-down "TASKS" list.Select the appropriate server on the "Server Selection" page and click "Next".Deselect "Peer Name Resolution Protocol" on the "Features" page.Click "Next" and "Remove" as prompted.