STIG V-253383 | Unauthenticated RPC clients must be r...

Microsoft Windows 11

Unauthenticated RPC clients must be restricted from connecting to the RPC server

STIG ID: WN11-CC-000165 | SRG: SRG-OS-000379-GPOS-00164 | Severity: Medium | CCI: CCI-001967 | Vulnerability ID: V-253383

Description

Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.

Check

C-56836r829231_chk

If the following registry value does not exist or is not configured as specified, this is a finding:Registry Hive: HKEY_LOCAL_MACHINERegistry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Rpc\Value Name: RestrictRemoteClientsValue Type: REG_DWORDValue: 1

Fix

F-56786r829232_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Procedure Call >> "Restrict Unauthenticated RPC clients" to "Enabled" and "Authenticated".