The Windows Remote Management (WinRM) client must not use Basic authentication.

STIG ID: WN11-CC-000330 |  SRG: SRG-OS-000125-GPOS-00065 |  Severity: high |  CCI:  | Vulnerability Id: V-253416

Vulnerability Discussion

Basic authentication uses plain text passwords that could be used to compromise a system.

Check

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Allow Basic authentication" to "Disabled".

Fix

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: AllowBasic

Value Type: REG_DWORD
Value: 0