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

STIG ID: WN10-CC-000330  |  SRG: SRG-OS-000125-GPOS-00065 |  Severity: high |  CCI: CCI-000877 |  Vulnerability Id: V-220862 | 

Vulnerability Discussion

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

Check

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

Fix

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