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Apple iOS must implement the management setting: remove managed applications upon unenrollment from MDM.


Finding ID Version Rule ID IA Controls Severity
V-71877 AIOS-10-080102 SV-86501r1_rule Medium
When a device is unenrolled from MDM, it is possible to relax the security policies that the MDM had implemented on the device. This may cause apps and data to be more vulnerable than they were prior to enrollment. Removing managed apps (and consequently the data they maintain) upon unenrollment mitigates this risk because on appropriately configured Apple iOS devices, DoD-sensitive information exists only within managed apps. SFR ID: FMT_SMF_EXT.1.1 #45
Apple iOS 10 Security Technical Implementation Guide 2017-02-14


Check Text ( C-72109r1_chk )
Note: The procedure below is exactly the same for requirement AIOS-11-080202. This procedure needs to be performed only once.

Note: Not all Apple iOS deployments involve MDM. If the site uses an authorized alternative to MDM for distribution of configuration profiles (Apple Configurator), this check procedure is not applicable.

This check procedure is performed on the Apple iOS management tool.

In the Apple iOS management tool, for each managed app, verify the app is configured to be removed when the MDM profile is removed.

If one or more managed apps are not set to be removed upon device MDM unenrollment, this is a finding.
Fix Text (F-78229r1_fix)
Install a configuration profile to delete all managed apps upon device unenrollment.