The Screen Sharing feature allows remote users to view or control the desktop of the current user. A malicious user can take advantage of screen sharing to gain full access to the system remotely, either with stolen credentials or by guessing the username and password. Disabling Screen Sharing mitigates this risk.
Check
Verify the macOS system is configured to disable the Screen Sharing feature with the following command:
/usr/bin/sudo /bin/launchctl print-disabled system | /usr/bin/grep com.apple.screensharing
"com.apple.screensharing => disabled"
If "com.apple.screensharing" is not set to "disabled", this is a finding.
Fix
Configure the macOS system to disable the Screen Sharing service with the following command: