Windows Server 2025 Windows Remote Management (WinRM) client must not use Digest authentication.

Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks. Disallowing Digest authentication will reduce this potential.

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: AllowDigest

Type: REG_DWORD Value: 0x00000000 (0)

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> Disallow Digest authentication to "Enabled".