The macOS system must be configured to disable Remote Apple Events.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-230806	APPL-11-002022	SV-230806r599842_rule		Medium

Description
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include but are not limited to games, software packages, tools, and demonstration software not related to requirements or providing a wide array of functionality not required for every mission but that cannot be disabled. Remote Apple Events must be disabled.

Description

It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include but are not limited to games, software packages, tools, and demonstration software not related to requirements or providing a wide array of functionality not required for every mission but that cannot be disabled. Remote Apple Events must be disabled.

STIG	Date
Apple macOS 11 (Big Sur) Security Technical Implementation Guide	2021-11-19

Details

Check Text ( C-33751r607305_chk )
To check if Remote Apple Events is disabled, use the following command: /bin/launchctl print-disabled system \| /usr/bin/grep com.apple.AEServer If the results do not show the following, this is a finding. "com.apple.AEServer" => true

Fix Text (F-33724r607306_fix)
To disable Remote Apple Events, run the following command: /usr/bin/sudo /bin/launchctl disable system/com.apple.AEServer The system may need to be restarted for the update to take effect.