Apple iOS/iPadOS 15 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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PP-MDF-321290
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PP-MDF-321280
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PP-MDF-321290
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PP-MDF-321290
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Apple iOS/iPadOS 15 must not allow backup to remote systems (iCloud Keychain).
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DoD information systems. An adversary could exploi...Rule Medium Severity -
PP-MDF-321290
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PP-MDF-321290
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PP-MDF-321290
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PP-MDF-321400
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Apple iOS/iPadOS 15 must [selection: wipe protected data, wipe sensitive data] upon unenrollment from MDM.
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at m...Rule Medium Severity -
PP-MDF-321410
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Apple iOS/iPadOS 15 must [selection: remove Enterprise application, remove all noncore applications (any nonfactory-installed application)] upon unenrollment from MDM.
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at m...Rule Medium Severity -
PP-MDF-323024
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PP-MDF-323025
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Apple iOS/iPadOS 15 must be configured to not allow passwords that include more than two repeating or sequential characters.
Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords that contain repeating or sequential characters are significantly easier t...Rule Medium Severity -
PP-MDF-323026
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Apple iOS/iPadOS 15 must be configured to enable a screen-lock policy that will lock the display after a period of inactivity.
The screen-lock timeout helps protect the device from unauthorized access. Devices without a screen-lock timeout provide an opportunity for adversaries who gain physical access to the mobile device...Rule Medium Severity -
PP-MDF-323030
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PP-MDF-323040
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Apple iOS/iPadOS 15 must be configured to not allow more than 10 consecutive failed authentication attempts.
The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gain access to resources on the device. Setting a limit on the number of at...Rule Medium Severity -
PP-MDF-323050
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Apple iOS/iPadOS 15 must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including [selection: DoD-approved commercial app repository, MDM server, mobile application store].
Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing s...Rule Medium Severity -
PP-MDF-323070
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PP-MDF-323070
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Apple iOS/iPadOS 15 must be configured to not allow backup of [all applications, configuration data] to locally connected systems.
Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connect...Rule Medium Severity -
PP-MDF-323280
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PP-MDF-323070
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Apple iOS/iPadOS 15 allowlist must be configured to not include applications with the following characteristics: - back up MD data to non-DoD cloud servers (including user and application access to cloud backup services);- transmit MD diagnostic data to non-DoD servers; - allows synchronization of data or applications between devices associated with user; and - allows unencrypted (or encrypted but not FIPS 140-2 validated) data sharing with other MDs or printers.
Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allow list. Failure to c...Rule Medium Severity -
PP-MDF-323080
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Apple iOS/iPadOS 15 must be configured to not display notifications when the device is locked.
Many mobile devices display notifications on the lock screen so that users can obtain relevant information in a timely manner without having to frequently unlock the phone to determine if there are...Rule Medium Severity -
PP-MDF-323080
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Apple iOS/iPadOS 15 must not display notifications (calendar information) when the device is locked.
Many mobile devices display notifications on the lock screen so that users can obtain relevant information in a timely manner without having to frequently unlock the phone to determine if there are...Rule Medium Severity -
PP-MDF-323160
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Apple iOS/iPadOS 15 must be configured to display the DoD advisory warning message at startup or each time the user unlocks the device.
Before granting access to the system, the mobile operating system is required to display the DoD-approved system use notification message or banner that provides privacy and security notices consis...Rule Low Severity -
PP-MDF-323240
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PP-MDF-323290
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Apple iOS/iPadOS 15 must be configured to disable multiuser modes.
Multiuser mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date, no mobile device with multiuser mode features meets DoD requirements fo...Rule Medium Severity -
PP-MDF-323300
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Apple iOS/iPadOS 15 must be configured to [selection: wipe protected data, wipe sensitive data] upon unenrollment from MDM.
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at m...Rule Medium Severity -
PP-MDF-323310
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Apple iOS/iPadOS 15 must be configured to [selection: remove Enterprise applications, remove all noncore applications (any nonfactory installed application)] upon unenrollment from MDM.
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at m...Rule Medium Severity -
PP-MDF-323330
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Apple iOS/iPadOS 15 must be configured to disable ad hoc wireless client-to-client connection capability.
Ad hoc wireless client-to-client connections allow mobile devices to communicate with each other directly, circumventing network security policies and making the traffic invisible. This could allow...Rule Medium Severity -
PP-MDF-990000
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PP-MDF-990000
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Apple iOS/iPadOS 15 must implement the management setting: limit Ad Tracking.
Ad Tracking refers to the advertisers' ability to categorize the device and spam the user with ads that are most relevant to the user's preferences. By not "Force limiting ad tracking", advertising...Rule Low Severity -
PP-MDF-990000
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Apple iOS/iPadOS 15 must implement the management setting: not allow automatic completion of Safari browser passcodes.
The AutoFill functionality in the Safari web browser allows the user to complete a form that contains sensitive information, such as PII, without previous knowledge of the information. By allowing ...Rule Low Severity -
PP-MDF-990000
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Apple iOS/iPadOS 15 must implement the management setting: Encrypt iTunes backups/Encrypt local backup.
When syncing an iPhone and iPad to a computer running iTunes, iTunes will prompt the user to back up the iPhone and iPad. If the performed backup is not encrypted, this could lead to the unauthoriz...Rule Medium Severity
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