Microsoft Windows Server 2025
Windows Server 2025 Windows Remote Management (WinRM) service must not use Basic authentication
STIG ID: WN25-CC-000500 | SRG: SRG-OS-000125-GPOS-00065 | Severity: High | CCI: CCI-000877 | Vulnerability ID: V-278128
Description
Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.
Check
C-82658r1181088_chk
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)
Fix
F-82563r1181089_fix
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> Allow Basic authentication to "Disabled".