STIGQter: STIG Summary: Microsoft Windows Server 2022 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

Windows Server 2022 must restrict unauthenticated Remote Procedure Call (RPC) clients from connecting to the RPC server on domain-joined member servers and standalone or nondomain-joined systems.

DISA Rule

SV-254431r971545_rule

Vulnerability Number

V-254431

Group Title

SRG-OS-000379-GPOS-00164

Rule Version

WN22-MS-000040

Severity

CAT II

CCI(s)

• CCI-001967 - Authenticate organization-defined devices and/or types of devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.

Weight

10

Fix Recommendation

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

Check Contents

This applies to member servers and standalone or nondomain-joined systems, it is NA for domain controllers.

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Rpc\

Value Name: RestrictRemoteClients

Type: REG_DWORD
Value: 0x00000001 (1)

Vulnerability Number

V-254431

Documentable

False

Rule Version

WN22-MS-000040

Severity Override Guidance

This applies to member servers and standalone or nondomain-joined systems, it is NA for domain controllers.

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Rpc\

Value Name: RestrictRemoteClients

Type: REG_DWORD
Value: 0x00000001 (1)

Check Content Reference

M

Target Key

5485