Information
The USB lightning port on an iOS device can be used to access data on the device. The required settings ensure the Apple device password is entered before a previously trusted USB accessory can connect to the device.
SFR ID: FMT_SMF_EXT.1.1 #47
NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.
Solution
Install a configuration profile to disable the allow USB Restricted Mode in the management tool. This a supervised-only control.
Note: This control is called 'Allow USB accessories while device is locked' in Apple Configurator and the control logic is opposite to what is listed here. Make sure the MDM policy rule is set correctly (to disable USB accessory connections when the device is locked).