Apple iOS/iPadOS must not allow backup to remote systems (enterprise books).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-97455	AIOS-13-004700	SV-106559r1_rule		Medium

Description
Enterprise books may contain DoD-sensitive information. When Enterprise books are vulnerable to attacks on the backup systems and media when backed up. Disabling the backup capability mitigates this risk. Books which are lost, accidentally deleted, or corrupted for any reason, can be easily retrieved from the original source. 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-96291r1_chk )
Review configuration settings to confirm "Allow backup of enterprise books" 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 backup of enterprise books" is unchecked. Alternatively, verify the text "allowEnterpriseBookBackup " 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 "Backing up enterprise books not allowed" is listed. If "Allow backup of enterprise books" is checked in the Apple iOS/iPadOS management tool, "allowEnterpriseBookBackup " appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Backing up enterprise books not allowed", this is a finding.

Check Text ( C-96291r1_chk )

Review configuration settings to confirm "Allow backup of enterprise books" 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 backup of enterprise books" is unchecked.

Alternatively, verify the text "allowEnterpriseBookBackup " 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 "Backing up enterprise books not allowed" is listed.

If "Allow backup of enterprise books" is checked in the Apple iOS/iPadOS management tool, "allowEnterpriseBookBackup " appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Backing up enterprise books not allowed", this is a finding.

Fix Text (F-103135r1_fix)
Install a configuration profile to prevent backup of enterprise books that could contain DoD-sensitive information.