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WN25-CC-000500 Windows Server 2025 Windows Remote Management (WinRM) service must not use Basic authentication.

DISA STIG library V1R4
All changes in this version
first version loaded CAT I

Maps to MA-4 via CCI-000877

Title

Windows Server 2025 Windows Remote Management (WinRM) service must not use Basic authentication.

Control

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\Service\ Value Name: AllowBasic Type: REG_DWORD Value: 0x00000000 (0)

Discussion

Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.

Related controls

CCI-000877

Fix

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