Apple iOS must not allow backup to remote systems (iCloud Photo Sharing, also known as Shared Photo Streams).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71791	AIOS-02-080006	SV-86415r1_rule		Medium

Description
When iCloud Photo Sharing is enabled, sensitive photos will be uploaded automatically to Apple-specified servers and available on the Apple IOS devices of other users who have accepted invitations to participate in iCloud Photo Sharing. This potentially places sensitive photos on a server outside of DoD's control and potentially makes them available to non-DoD users and devices. Disabling iCloud Photo Sharing mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #40

Description

When iCloud Photo Sharing is enabled, sensitive photos will be uploaded automatically to Apple-specified servers and available on the Apple IOS devices of other users who have accepted invitations to participate in iCloud Photo Sharing. This potentially places sensitive photos on a server outside of DoD's control and potentially makes them available to non-DoD users and devices. Disabling iCloud Photo Sharing mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #40

STIG	Date
Apple iOS 10 Security Technical Implementation Guide	2017-02-14

Details

Check Text ( C-72051r1_chk )
Review configuration settings to confirm "iCloud Photo Sharing" 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 photo sharing" is unchecked. Alternatively, verify the text "allowSharedStream" 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 Apple iOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Shared streams not allowed" is listed. If "Allow iCloud photo sharing" is checked in the Apple iOS management tool, "allowSharedStream" appears in the configuration profile, or the restrictions policy on the Apple iOS device from the Apple iOS management tool does not list "Shared streams not allowed", this is a finding.

Check Text ( C-72051r1_chk )

Review configuration settings to confirm "iCloud Photo Sharing" 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 photo sharing" is unchecked.

Alternatively, verify the text "allowSharedStream" 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 Apple iOS management tool containing the restrictions policy.
5. Tap "Restrictions".
6. Verify "Shared streams not allowed" is listed.

If "Allow iCloud photo sharing" is checked in the Apple iOS management tool, "allowSharedStream" appears in the configuration profile, or the restrictions policy on the Apple iOS device from the Apple iOS management tool does not list "Shared streams not allowed", this is a finding.

Fix Text (F-78143r1_fix)
Install a configuration profile to disable iCloud Photo Sharing.