The macOS system must be configured to disable Apple File (AFP) Sharing.

From Apple OS X 10.13 Security Technical Implementation Guide

Associated with: CCI-000381

SV-96223r1_rule The macOS system must be configured to disable Apple File (AFP) Sharing.

Vulnerability discussion

File Sharing is non-essential and must be disabled. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.

Check content

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

Fix text

To disable the Apple File (AFP) Sharing service, run the following command: /usr/bin/sudo /bin/launchctl disable system/com.apple.AppleFileServer The system may need to be restarted for the update to take effect.

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