STIGQter: STIG Summary: Apple iOS/iPadOS 14 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

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

DISA Rule

SV-228741r619923_rule

Vulnerability Number

V-228741

Group Title

PP-MDF-302220

Rule Version

AIOS-14-003700

Severity

CAT II

CCI(s)

• CCI-000097 - The organization restricts or prohibits the use of organization-controlled portable storage devices by authorized individuals on external information systems.
• CCI-000366 - The organization implements the security configuration settings.
• CCI-000370 - The organization employs automated mechanisms to centrally manage configuration settings for organization-defined information system components.

Weight

10

Fix Recommendation

Install a configuration profile to disable iCloud Backup.

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 iCloud Backup 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 iCloud backup" is unchecked.

Alternatively, verify the text "<key>allowCloudBackup</key> <false/>" 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" or "Profiles".
4. Tap the Configuration Profile from the iOS management tool containing the policy.
5. Tap "Restrictions".
6. Verify "iCloud backup not allowed".

If "Allow iCloud backup" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudBackup</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "iCloud backup not allowed", this is a finding.

Vulnerability Number

V-228741

Documentable

False

Rule Version

AIOS-14-003700

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 iCloud Backup 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 iCloud backup" is unchecked.

Alternatively, verify the text "<key>allowCloudBackup</key> <false/>" 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" or "Profiles".
4. Tap the Configuration Profile from the iOS management tool containing the policy.
5. Tap "Restrictions".
6. Verify "iCloud backup not allowed".

If "Allow iCloud backup" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudBackup</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "iCloud backup not allowed", this is a finding.

Check Content Reference

M

Target Key

4231

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