The macOS system must allow only applications downloaded from the App Store to run.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-225194	AOSX-15-002060	SV-225194r485636_rule		Medium

Description
Gatekeeper settings must be configured correctly to only allow the system to run applications downloaded from the Mac App Store or applications signed with a valid Apple Developer ID code. Administrator users will still have the option to override these settings on a per-app basis. Gatekeeper is a security feature that ensures that applications must be digitally signed by an Apple-issued certificate in order to run. Digital signatures allow the macOS host to verify that the application has not been modified by a malicious third party.

Description

Gatekeeper settings must be configured correctly to only allow the system to run applications downloaded from the Mac App Store or applications signed with a valid Apple Developer ID code. Administrator users will still have the option to override these settings on a per-app basis. Gatekeeper is a security feature that ensures that applications must be digitally signed by an Apple-issued certificate in order to run. Digital signatures allow the macOS host to verify that the application has not been modified by a malicious third party.

STIG	Date
Apple OS X 10.15 (Catalina) Security Technical Implementation Guide	2020-08-13

Details

Check Text ( C-26893r467750_chk )
To verify only applications downloaded from the App Store are allowed to run, type the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType \| /usr/bin/grep -E '(EnableAssessment \| AllowIdentifiedDevelopers)' If the return is null or is not the following, this is a finding: AllowIdentifiedDevelopers = 1; EnableAssessment = 1;

Fix Text (F-26881r467751_fix)
This setting is enforced using the "RestrictionsPolicy" configuration profile.