STIGQter STIGQter: STIG Summary: Apple iOS 12 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 25 Jan 2019:

Apple iOS must not allow backup to remote systems (iCloud document and data synchronization).

DISA Rule

SV-96495r1_rule

Vulnerability Number

V-81781

Group Title

PP-MDF-302220

Rule Version

AIOS-12-004200

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Install a configuration profile to disable iCloud documents and data.

Check Contents

Note: This requirement is Not Applicable if the AO has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts (see Section 2.9 of the STIG Supplemental document for more details). The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store.

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 & Device Management".
4. Tap the Configuration Profile from the iOS management tool containing the policy.
5. Tap "Restrictions".
6. 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.

Vulnerability Number

V-81781

Documentable

False

Rule Version

AIOS-12-004200

Severity Override Guidance

Note: This requirement is Not Applicable if the AO has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts (see Section 2.9 of the STIG Supplemental document for more details). The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store.

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 & Device Management".
4. Tap the Configuration Profile from the iOS management tool containing the policy.
5. Tap "Restrictions".
6. 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.

Check Content Reference

M

Target Key

3401

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