The macOS system must disable the Screen Sharing feature.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-209601	AOSX-14-002050	SV-209601r610285_rule		Medium

Description
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.

STIG	Date
Apple OS X 10.14 (Mojave) Security Technical Implementation Guide	2021-11-19

Details

Check Text ( C-9852r282285_chk )
To check if the Screen Sharing service is disabled, use the following command: /usr/bin/sudo /bin/launchctl print-disabled system | /usr/bin/grep com.apple.screensharing If the results do not show the following, this is a finding: "com.apple.screensharing" => true

Fix Text (F-9852r282286_fix)
To disable the Screen Sharing service, run the following command: /usr/bin/sudo /bin/launchctl disable system/com.apple.screensharing The system may need to be restarted for the update to take effect.