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Windows Server 2019 Windows Remote Management (WinRM) client must not allow unencrypted traffic.


Overview

Finding ID Version Rule ID IA Controls Severity
V-205816 WN19-CC-000480 SV-205816r569188_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. Satisfies: SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174
STIG Date
Microsoft Windows Server 2019 Security Technical Implementation Guide 2021-08-18

Details

Check Text ( C-6081r355810_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 Text (F-6081r355811_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Allow unencrypted traffic" to "Disabled".