Microsoft Windows Server 2025
Windows Server 2025 Windows Remote Management (WinRM) client must not allow unencrypted traffic
STIG ID: WN25-CC-000480 | SRG: SRG-OS-000393-GPOS-00173 | Severity: Medium | CCI: CCI-002890 | Vulnerability ID: V-278126
Description
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
Satisfies: SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174
Check
C-82656r1181082_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\Client\
Value Name: AllowUnencryptedTraffic
Type: REG_DWORD
Value: 0x00000000 (0)
Fix
F-82561r1181083_fix
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> Allow unencrypted traffic to "Disabled".