The macOS system must disable the Screen Sharing feature.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-257213	APPL-13-002050	SV-257213r905272_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 macOS 13 (Ventura) Security Technical Implementation Guide	2023-08-28

Details

Check Text ( C-60898r905270_chk )
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 Text (F-60839r905271_fix)
Configure the macOS system to disable the Screen Sharing service with 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.