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18.10.90.2.3 Ensure 'Allow unencrypted traffic' is set to 'Disabled'

Information

This policy setting allows you to manage whether the Windows Remote Management (WinRM) service sends and receives unencrypted messages over the network.

The recommended state for this setting is: Disabled.

Encrypting WinRM network traffic reduces the risk of a threat actor viewing or modifying WinRM messages as they transit the network.

Solution

To establish the recommended configuration via GP, set the following UI path to Disabled :

Computer Configuration\Policies\Administrative Templates\Windows Components\Windows Remote Management (WinRM)\WinRM Service\Allow unencrypted traffic

Note: This Group Policy path is provided by the Group Policy template WindowsRemoteManagement.admx/adml that is included with all versions of the Microsoft Windows Administrative Templates.

Impact:

None - this is the default behavior.

See Also

https://workbench.cisecurity.org/benchmarks/28052

Item Details

Category: ACCESS CONTROL, IDENTIFICATION AND AUTHENTICATION, SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|AC-17(2), 800-53|IA-5, 800-53|IA-5(1), 800-53|SC-8, 800-53|SC-8(1), CSCv7|14.4

Plugin: Windows

Control ID: 9de21a8fb68aa641e240aa703b67ff60d4b74299deba90bed6c1addc18f1625f