Apple iOS-iPadOS 16 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 must be configured to enforce a minimum password length of six characters.
Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. The ability to crack a password is a function of how many attempts an adversary is p...Rule Medium Severity -
Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 must not include applications with the following characteristics: access to Siri when the device is locked.
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 -
Apple iOS/iPadOS 16 allowlist must be configured to not include applications with the following characteristics: - Backs up MD data to non-DoD cloud servers (including user and application access to cloud backup services); - Transmits 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/FIPS 140-3 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 -
Apple iOS/iPadOS 16 must not allow non-DoD applications to access DoD data.
App data sharing gives apps the ability to access the data of other apps for enhanced user functionality. However, sharing also poses a significant risk that unauthorized users or apps will obtain ...Rule Medium Severity -
Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 must require a valid password be successfully entered before the mobile device data is unencrypted.
Passwords provide a form of access control that prevents unauthorized individuals from accessing computing resources and sensitive data. Passwords may also be a source of entropy for generation of ...Rule High Severity -
Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 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 -
Apple iOS/iPadOS 16 must implement the management setting: Disable Allow Shared Albums.
Storing data with a non-DoD cloud provider may leave the data vulnerable to breach. Disabling non-DoD cloud services mitigates this risk. Note: If the authorizing official (AO) has approved the us...Rule Medium Severity -
Apple iOS/iPadOS 16 must implement the management setting: not allow messages in an ActiveSync Exchange account to be forwarded or moved to other accounts in the Apple iOS/iPadOS 16 Mail app.
The Apple iOS/iPadOS Mail app can be configured to support multiple email accounts concurrently. These email accounts are likely to involve content of varying degrees of sensitivity (e.g., both per...Rule Medium Severity -
Apple iOS/iPadOS 16 must implement the management setting: Not have any Family Members in Family Sharing.
Apple's Family Sharing service allows Apple iOS/iPadOS users to create a Family Group whose members have several shared capabilities, including the ability to lock, wipe, play a sound on, or locate...Rule Low Severity -
Apple iOS/iPadOS 16 must not allow managed apps to write contacts to unmanaged contacts accounts.
Managed apps have been approved for the handling of DoD sensitive information. Unmanaged apps are provided for productivity and morale purposes but are not approved to handle DoD sensitive informat...Rule Low Severity -
Apple iOS/iPadOS 16 must disable password proximity requests.
This control allows one Apple device to be notified to share its password with a nearby device. This could lead to a compromise of the device password with an unauthorized person or device. DoD App...Rule Medium Severity -
The Apple iOS must be configured to disable automatic transfer of diagnostic data to an external device other than an MDM service with which the device has enrolled.
Many software systems automatically send diagnostic data to the manufacturer or a third party. This data enables the developers to understand real-world field behavior and improve the product based...Rule Low Severity -
Apple iOS/iPadOS 16 must disable "Allow network drive access in Files access".
Allowing network drive access by the Files app could lead to the introduction of malware or unauthorized software into the DoD IT infrastructure and compromise of sensitive DoD information and syst...Rule Medium Severity -
Apple iOS/iPadOS 16 must disable connections to Siri servers for the purpose of dictation.
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 -
Apple iOS/iPadOS 16 must disable copy/paste of data from managed to unmanaged applications.
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-321090
Group -
Apple iOS/iPadOS 16 must allow the Administrator (MDM) to perform the following management function: enable/disable VPN protection across the device and [selection: other methods].
The system administrator must have the capability to configure VPN access to meet organization-specific policies based on mission needs. Otherwise, a user could inadvertently or maliciously set up ...Rule Low Severity -
PP-MDF-321280
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (iCloud).
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
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (iCloud document and data synchronization).
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
Group -
PP-MDF-321290
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (My Photo Stream).
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
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (iCloud Photo Sharing, also known as Shared Photo Streams).
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
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (managed applications data stored in iCloud).
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
Group -
Apple iOS/iPadOS 16 must not allow backup to remote systems (enterprise books).
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-321400
Group -
Apple iOS/iPadOS 16 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
Group -
PP-MDF-323024
Group -
PP-MDF-323025
Group -
Apple iOS/iPadOS 16 must be configured to not allow passwords that include more than four 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
Group -
Apple iOS/iPadOS 16 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
Group -
Apple iOS/iPadOS 16 must be configured to lock the display after 15 minutes (or less) of inactivity.
The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain ph...Rule Medium Severity -
PP-MDF-323040
Group -
PP-MDF-323050
Group -
Apple iOS/iPadOS 16 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
Group -
PP-MDF-323070
Group
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