The Telnet service must be disabled if installed.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Associated with IA controls: ECSC-1

Associated with: CCI-000382

SV-52240r2_rule The Telnet service must be disabled if installed.

Vulnerability discussion

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.

Check content

Verify the Telnet (tlntsvr) service is not installed or is disabled. Run "Services.msc". If the following is installed and not disabled, this is a finding: Telnet (tlntsvr)

Fix text

Remove or disable the Telnet (tlntsvr) service.

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