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

Apple iOS must not allow non-DoD applications to access DoD data.

DISA Rule

SV-96509r1_rule

Vulnerability Number

V-81795

Group Title

PP-MDF-301260

Rule Version

AIOS-12-005600

Severity

CAT II

CCI(s)

• 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 prevent non-DoD applications from accessing DoD data.

Check Contents

Review configuration settings to confirm "Allow documents from managed apps in unmanaged apps" 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, 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 documents from managed apps in unmanaged apps" is unchecked.

Alternatively, verify the text "<key>allowOpenFromManagedToUnmanaged</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 "Opening documents from managed to unmanaged apps not allowed" is listed.

If "Allow documents from managed apps in unmanaged apps" is checked in the iOS management tool, "<key>allowOpenFromManagedToUnmanaged</key>
<true/>" appears in the configuration profile, or the restrictions policy on the iOS device from the iOS management tool does not list "Opening documents from managed to unmanaged apps not allowed", this is a finding.

Vulnerability Number

V-81795

Documentable

False

Rule Version

AIOS-12-005600

Severity Override Guidance

Review configuration settings to confirm "Allow documents from managed apps in unmanaged apps" 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, 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 documents from managed apps in unmanaged apps" is unchecked.

Alternatively, verify the text "<key>allowOpenFromManagedToUnmanaged</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 "Opening documents from managed to unmanaged apps not allowed" is listed.

If "Allow documents from managed apps in unmanaged apps" is checked in the iOS management tool, "<key>allowOpenFromManagedToUnmanaged</key>
<true/>" appears in the configuration profile, or the restrictions policy on the iOS device from the iOS management tool does not list "Opening documents from managed to unmanaged apps not allowed", this is a finding.

Check Content Reference

M

Target Key

3401

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