Windows Server 2019 Windows Remote Management (WinRM) service must not allow unencrypted traffic.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-205817 | WN19-CC-000510 | SV-205817r958848_rule | CCI-002890 | 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. Satisfies: SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174 | ||||
| STIG | Date | |||
| Microsoft Windows Server 2019 Security Technical Implementation Guide | 2025-05-23 | |||
Details
Check Text (C-205817r958848_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: 0x00000000 (0)
Fix Text (F-6082r355814_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> "Allow unencrypted traffic" to "Disabled".