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


Overview

Finding ID Version Rule ID IA Controls Severity
V-224961 WN16-CC-000530 SV-224961r569186_rule High
Description
Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.
STIG Date
Microsoft Windows Server 2016 Security Technical Implementation Guide 2021-09-29

Details

Check Text ( C-26652r465785_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 Text (F-26640r465786_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> "Allow Basic authentication" to "Disabled".