STIGQter: STIG Summary: Microsoft Windows Server 2025 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

Windows Server 2025 Remote Desktop Services must require secure Remote Procedure Call (RPC) communications.

DISA Rule

SV-278115r1181051_rule

Vulnerability Number

V-278115

Group Title

SRG-OS-000033-GPOS-00014

Rule Version

WN25-CC-000370

Severity

CAT II

CCI(s)

• CCI-000068 - Implement cryptographic mechanisms to protect the confidentiality of remote access sessions.
• CCI-001453 - Implement cryptographic mechanisms to protect the integrity of remote access sessions.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> Require secure RPC communication to "Enabled".

Check Contents

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\Terminal Services\

Value Name: fEncryptRPCTraffic

Type: REG_DWORD
Value: 0x00000001 (1)

Vulnerability Number

V-278115

Documentable

False

Rule Version

WN25-CC-000370

Severity Override Guidance

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\Terminal Services\

Value Name: fEncryptRPCTraffic

Type: REG_DWORD
Value: 0x00000001 (1)

Check Content Reference

M

Target Key

5719