Vulnerability Discussion

The built-in web server is a nonessential service built into macOS and must be disabled.

NOTE: The built-in web server is disabled at startup by default with macOS.

Check

Verify the macOS system is configured to disable the built-in web server with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"org.apache.httpd" => disabled'

If the result is not "1", this is a finding.

Fix

Configure the macOS system to disable the built-in web server with the following command:

/bin/launchctl disable system/org.apache.httpd

The system may need to be restarted for the update to take effect.