Apple iOS/iPadOS must not allow backup to remote systems (managed applications data stored in iCloud).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-97453	AIOS-13-004600	SV-106557r1_rule		Medium

Description
Storing data with a non-DoD cloud provider may leave the data vulnerable to breach. Disabling non-DoD cloud services mitigates this risk. SFR ID: FMT_MOF_EXT.1.2 #40

STIG	Date
Apple iOS/iPadOS 13 Security Technical Implementation Guide	2019-09-23

Details

Check Text ( C-96289r1_chk )
Review configuration settings to confirm "Allow managed apps to store data in iCloud" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review. In the Apple iOS/iPadOS management tool, verify "Allow managed apps to store data in iCloud" is unchecked. Alternatively, verify the text "allowManagedAppsCloudSync " appears in the configuration profile (.mobileconfig file). On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "Profiles & Device Management". 4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Managed apps cloud sync not allowed" is listed. If "Allow managed apps to store data in iCloud" is checked in the Apple iOS/iPadOS management tool, "allowManagedAppsCloudSync " appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Managed apps cloud sync not allowed", this is a finding.

Check Text ( C-96289r1_chk )

Review configuration settings to confirm "Allow managed apps to store data in iCloud" is disabled.

This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the Apple iOS/iPadOS management tool, verify "Allow managed apps to store data in iCloud" is unchecked.

Alternatively, verify the text "allowManagedAppsCloudSync " appears in the configuration profile (.mobileconfig file).

On the iPhone and iPad:
1. Open the Settings app.
2. Tap "General".
3. Tap "Profiles & Device Management".
4. Tap the Configuration Profile from the Apple iOS/iPadOS management tool containing the restrictions policy.
5. Tap "Restrictions".
6. Verify "Managed apps cloud sync not allowed" is listed.

If "Allow managed apps to store data in iCloud" is checked in the Apple iOS/iPadOS management tool, "allowManagedAppsCloudSync " appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Managed apps cloud sync not allowed", this is a finding.

Fix Text (F-103133r1_fix)
Install a configuration profile to prevent DoD applications from storing data in iCloud.