Title

Apple iOS must not allow managed applications to store data in iCloud. (Cat II impact)

Discussion

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_SMF.1.1 #42

Check Content

Review configuration settings to confirm “Allow managed apps to store data in iCloud” is disabled. This check procedure is performed on both the iOS management tool and the iOS device. Note: If an organization has multiple configuration profiles, then the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review. In the iOS management tool, verify "Allow managed apps to store data in iCloud" is unchecked. Alternatively, verify the text "<key>allowManagedAppsCloudSync</key> <false/>" appears in the configuration profile (.mobileconfig file). On the iOS device: 1. Open the Settings app. 2. Tap "General". 3. Tap "Profiles" or "Profiles & Device Management" or "Device Management". 4. Tap the Configuration Profile from the iOS 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 iOS management tool, "<key>allowManagedAppsCloudSync</key> <true/>" appears in the configuration profile, or the restrictions policy on the iOS device from the iOS management tool does not list "Managed apps cloud sync not allowed", this is a finding.

Fix Text

Install a Configuration Profile to prevent DoD applications from storing data in iCloud.

Additional Identifiers

Rule ID:

Vulnerability ID: V-54283

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.