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The Windows Remote Management (WinRM) service must not allow unencrypted traffic.


Overview

Finding ID Version Rule ID IA Controls Severity
V-225400 WN12-CC-000127 SV-225400r569185_rule Medium
Description
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
STIG Date
Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide 2022-03-01

Details

Check Text ( C-27099r471542_chk )
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\WinRM\Service\

Value Name: AllowUnencryptedTraffic

Type: REG_DWORD
Value: 0
Fix Text (F-27087r471543_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Service -> "Allow unencrypted traffic" to "Disabled".