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Check: WN11-00-000115

Microsoft Windows 11 STIG: WN11-00-000115 (in versions v2 r2 through v1 r1)

Title

The Telnet Client must not be installed on the system. (Cat II impact)

Discussion

The "Telnet Client" is not installed by default. Some protocols and services do not support required security features, such as encrypting passwords or traffic.

Check Content

Verify Telnet Client has not been installed. Navigate to the Windows\System32 directory. If the "telnet" application exists, this is a finding.

Fix Text

Uninstall "Telnet Client" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "Telnet Client".

Additional Identifiers

Rule ID: SV-253278r958480_rule

Vulnerability ID: V-253278

Group Title: SRG-OS-000096-GPOS-00050

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000382	Configure the system to prohibit or restrict the use of organization-defined prohibited or restricted functions, system ports, protocols, software, and/or services.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
CM-7	Least Functionality