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V-73593

CAT I (High)

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

Rule ID

SV-88257r1_rule

STIG

Windows Server 2016 Security Technical Implementation Guide

Version

V1R10

CCIs

CCI-000877

Discussion

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

Check Content

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

Type: REG_DWORD
Value: 0x00000000 (0)

Fix Text

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