The EMM system supporting the iOS/iPadOS 17 BYOAD must be configured to detect if the BYOAD is configured to access nonapproved third-party applications stores (DOD-managed segment only).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-259746	AIOS-17-800060	SV-259746r943563_rule		Medium

Description
DOD policy requires BYOAD devices with DOD data be managed by a DOD MDM server, MAM server, or VMI system. This ensures the device can be monitored for compliance with the approved security baseline and managed data and apps can be removed when the device is out of compliance, which protects DOD data from unauthorized exposure. Detection via collection and analysis of BYOAD-generated logs for noncompliance indicators is acceptable. This detection capability must be implemented prior to AMD (Approved Mobile Device, called BYOAD device in the STIG) enrollment and AMD access to DOD information and IT resources and continuously monitored on the DOD-managed segment of the AMD enrolled in the program. If non-DOD information (i.e., personal user data, device information) outside the DOD-managed segment of the AMD is required to be accessed, collected, monitored, tracked (i.e., location), or maintained, the circumstances under which this may be done must be outlined in the user agreement. Reference: DOD policy "Use of Non-Government Mobile Devices". 3.a.(3)iii. SFR ID: FMT_SMF_EXT.1.1 #47

Description

DOD policy requires BYOAD devices with DOD data be managed by a DOD MDM server, MAM server, or VMI system. This ensures the device can be monitored for compliance with the approved security baseline and managed data and apps can be removed when the device is out of compliance, which protects DOD data from unauthorized exposure. Detection via collection and analysis of BYOAD-generated logs for noncompliance indicators is acceptable. This detection capability must be implemented prior to AMD (Approved Mobile Device, called BYOAD device in the STIG) enrollment and AMD access to DOD information and IT resources and continuously monitored on the DOD-managed segment of the AMD enrolled in the program. If non-DOD information (i.e., personal user data, device information) outside the DOD-managed segment of the AMD is required to be accessed, collected, monitored, tracked (i.e., location), or maintained, the circumstances under which this may be done must be outlined in the user agreement. Reference: DOD policy "Use of Non-Government Mobile Devices". 3.a.(3)iii. SFR ID: FMT_SMF_EXT.1.1 #47

STIG	Date
Apple iOS/iPadOS 17 BYOAD Security Technical Implementation Guide	2024-01-31

Details

Check Text ( C-63482r943561_chk )
Review configuration settings to confirm "Allow Trusting New Enterprise App Authors" is disabled. This procedure is performed in the Apple iOS/iPadOS management tool and on 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 Management tool, verify "Allow Trusting New Enterprise App Authors" is disabled. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Trusting enterprise apps not allowed" is listed. If "Allow Trusting New Enterprise App Authors" is not disabled in the iOS/iPadOS management tool or on the iPhone and iPad, this is a finding. Note: This requirement is the same as AIOS-17-707000 in the Apple iOS/iPadOS 17 BYOAD STIG.

Check Text ( C-63482r943561_chk )

Review configuration settings to confirm "Allow Trusting New Enterprise App Authors" is disabled.

This procedure is performed in the Apple iOS/iPadOS management tool and on 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 Management tool, verify "Allow Trusting New Enterprise App Authors" is disabled.

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 Apple iOS/iPadOS management tool containing the restrictions policy.
5. Tap "Restrictions".
6. Verify "Trusting enterprise apps not allowed" is listed.

If "Allow Trusting New Enterprise App Authors" is not disabled in the iOS/iPadOS management tool or on the iPhone and iPad, this is a finding.

Note: This requirement is the same as AIOS-17-707000 in the Apple iOS/iPadOS 17 BYOAD STIG.

Fix Text (F-63389r943562_fix)
Install a configuration profile to disable "Allow Trusting New Enterprise App Authors". Note: This requirement is the same as AIOS-17-707000 in the Apple iOS/iPadOS 17 BYOAD STIG.