The macOS system must be configured with the finger service disabled.

From Apple OS X 10.13 Security Technical Implementation Guide

Associated with: CCI-000366

SV-96399r1_rule The macOS system must be configured with the finger service disabled.

Vulnerability discussion

The "finger" service has had several security vulnerabilities in the past and is not a necessary service. It is disabled by default; enabling it would increase the attack surface of the system.

Check content

To check if the "finger" service is disabled, use the following command: /usr/bin/sudo /bin/launchctl print-disabled system | /usr/bin/grep com.apple.fingerd If the results do not show the following, this is a finding: "com.apple.fingerd" => true

Fix text

To disable the "finger" service, run the following command: /usr/bin/sudo /bin/launchctl disable system/com.apple.fingerd The system may need to be restarted for the update to take effect.

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