STIG V-253417 | The Windows Remote Management (WinRM)...

Microsoft Windows 11

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

STIG ID: WN11-CC-000335 | SRG: SRG-OS-000393-GPOS-00173 | Severity: Medium | CCI: CCI-002890 | Vulnerability ID: V-253417

Description

Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.

Check

C-56870r829333_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\WinRM\Client\Value Name: AllowUnencryptedTrafficValue Type: REG_DWORDValue: 0

Fix

F-56820r829334_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Allow unencrypted traffic" to "Disabled".