Check: AIOS-02-080003
Apple iOS 10 STIG:
AIOS-02-080003
(in versions v1 r3 through v1 r1)
Title
Apple iOS must not allow backup to remote systems (iCloud document and data synchronization). (Cat II impact)
Discussion
Backups to remote systems (including cloud backup and cloud document syncing) can leave data vulnerable to breach on the external systems, which often offer less protection than the MOS. Where the remote backup involves a cloud-based solution, the backup capability is often used to synchronize data across multiple devices. In this case, DoD devices may synchronize DoD-sensitive information to a user's personal device or other unauthorized computers that are vulnerable to breach. Disallowing remote backup mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #40
Check Content
Review configuration settings to confirm "Allow iCloud documents & data" 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 iCloud documents & data" is unchecked. Alternatively, verify the text "<key>allowCloudDocumentSync</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" or "Profiles & Device Management" or "Device Management". 4. Tap the Configuration Profile from the iOS management tool containing the policy. 5. Verify "Documents in the Cloud not allowed". Note: This also verifies that iCloud Drive and iCloud Photo Library is disabled. If "Allow iCloud documents & data" is checked in the Apple iOS management tool, "<key>allowCloudDocumentSync</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 "Documents in the Cloud not allowed", this is a finding.
Fix Text
Install a configuration profile to disable iCloud documents and data.
Additional Identifiers
Rule ID: SV-86409r1_rule
Vulnerability ID: V-71785
Group Title:
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
The organization implements the security configuration settings. |
| 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. |