STIGQter: STIG Summary: Microsoft Windows Server 2016 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

The Telnet Client must not be installed.

DISA Rule

SV-224854r569186_rule

Vulnerability Number

V-224854

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

WN16-00-000390

Severity

CAT II

CCI(s)

• CCI-000382 - The organization configures the information system to prohibit or restrict the use of organization-defined functions, ports, protocols, and/or services.

Weight

10

Fix Recommendation

Uninstall the "Telnet Client" feature.

Start "Server Manager".

Select the server with the feature.

Scroll down to "ROLES AND FEATURES" in the right pane.

Select "Remove Roles and Features" from the drop-down "TASKS" list.

Select the appropriate server on the "Server Selection" page and click "Next".

Deselect "Telnet Client" on the "Features" page.

Click "Next" and "Remove" as prompted.

Check Contents

Open "PowerShell".

Enter "Get-WindowsFeature | Where Name -eq Telnet-Client".

If "Installed State" is "Installed", this is a finding.

An Installed State of "Available" or "Removed" is not a finding.

Vulnerability Number

V-224854

Documentable

False

Rule Version

WN16-00-000390

Severity Override Guidance

Open "PowerShell".

Enter "Get-WindowsFeature | Where Name -eq Telnet-Client".

If "Installed State" is "Installed", this is a finding.

An Installed State of "Available" or "Removed" is not a finding.

Check Content Reference

M

Target Key

4205

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