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Check: AIOS-11-011200

Apple iOS 11 STIG: AIOS-11-011200 (in versions v1 r4 through v1 r1)

Title

Apple iOS must not allow backup to remote systems (enterprise books). (Cat III impact)

Discussion

Enterprise books may contain DoD-sensitive information. When enterprise books are backed up, they are vulnerable to attacks on the backup systems and media. Disabling the backup capability mitigates this risk. If such books are lost, accidentally deleted, or corrupted for any reason, they can be easily retrieved from the original source. SFR ID: FMT_SMF_EXT.1.1 #40

Check Content

Review configuration settings to confirm "Allow backup of enterprise books" is disabled. This check procedure is performed on both the Apple iOS management tool and the Apple iOS device. 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 management tool, verify "Allow backup of enterprise books" is unchecked. Alternatively, verify the text "<key>allowEnterpriseBookBackup</key> <false/>" appears in the configuration profile (.mobileconfig file). On the Apple iOS device: 1. Open the Settings app. 2. Tap "General". 3. Tap "Profiles & Device Management". 4. Tap the Configuration Profile from the Apple iOS 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 management tool, "<key>allowEnterpriseBookBackup</key> <true/>" appears in the configuration profile, or the restrictions policy on the Apple iOS device from the Apple iOS management tool does not list "Backing up enterprise books not allowed", this is a finding.

Fix Text

Install a configuration profile to prevent backup of enterprise books that could contain DoD-sensitive information.

Additional Identifiers

Rule ID: SV-93117r1_rule

Vulnerability ID: V-78411

Group Title: PP-MDF-302220

Expert Comments

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CCIs

CCIs tied to check.
Number Definition
CCI-002338

The organization restricts or prohibits the use of non-organizationally owned information systems, system components, or devices to process, store, or transmit organizational information.

Controls

Controls tied to check. These are derived from the CCIs shown above.
Number Title
AC-20 (3)

Non-Organizationally Owned Systems / Components / Devices