The OS X system must be configured to disable the system preference pane for iCloud.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-76053	AOSX-12-000520	SV-90741r1_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. The system preference panel's iCloud and Internet Accounts must be disabled. Satisfies: SRG-OS-000095-GPOS-00049, SRG-OS-000370-GPOS-00155

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. The system preference panel's iCloud and Internet Accounts must be disabled. Satisfies: SRG-OS-000095-GPOS-00049, SRG-OS-000370-GPOS-00155

STIG	Date
Apple OS X 10.12 Security Technical Implementation Guide	2018-04-09

Details

Check Text ( C-75737r1_chk )
To check if the system has the correct setting in the configuration profile to disable access to the iCloud preference pane, run the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType \| /usr/bin/grep -A 5 'DisabledPreferencePanes' If nothing is returned, this is a finding. To check if iCloud has been disabled, run the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType \| /usr/bin/grep com.apple.preferences.icloud If nothing is returned, this is a finding.

Check Text ( C-75737r1_chk )

To check if the system has the correct setting in the configuration profile to disable access to the iCloud preference pane, run the following command:

/usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep -A 5 'DisabledPreferencePanes'

If nothing is returned, this is a finding.

To check if iCloud has been disabled, run the following command:

/usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep com.apple.preferences.icloud

If nothing is returned, this is a finding.

Fix Text (F-82691r1_fix)
This setting is enforced using the "Restrictions Policy" configuration profile.