Title

Windows Server 2019 Windows Remote Management (WinRM) client must not use Digest authentication. (Cat II impact)

Discussion

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.

Check Content

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)

Fix Text

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

Additional Identifiers

Rule ID: SV-205712r958510_rule

Vulnerability ID: V-205712

Group Title: SRG-OS-000125-GPOS-00065

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.