Apple iOS/iPadOS 17 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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PP-MDF-993300
<GroupDescription></GroupDescription>Group -
PP-MDF-333250
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PP-MDF-333160
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Apple iOS/iPadOS 17 must be configured to display the DOD advisory warning message at startup or each time the user unlocks the device.
<VulnDiscussion>Before granting access to the system, the mobile operating system is required to display the DOD-approved system use notifica...Rule Low Severity -
PP-MDF-331090
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must allow the Administrator (MDM) to perform the following management function: enable/disable VPN protection across the device and [selection: other methods].
<VulnDiscussion>The system administrator must have the capability to configure VPN access to meet organization-specific policies based on mis...Rule Low Severity -
PP-MDF-333024
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PP-MDF-333240
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Apple iOS/iPadOS 17 must be configured to enforce a minimum password length of six characters.
<VulnDiscussion>Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. The ability ...Rule Medium Severity -
PP-MDF-333025
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to not allow passwords that include more than four repeating or sequential characters.
<VulnDiscussion>Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords th...Rule Medium Severity -
PP-MDF-333030
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to lock the display after 15 minutes (or less) of inactivity.
<VulnDiscussion>The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long time...Rule Medium Severity -
PP-MDF-333040
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to not allow more than 10 consecutive failed authentication attempts.
<VulnDiscussion>The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gai...Rule Medium Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to enforce a passcode reuse prohibition of at least two generations.
<VulnDiscussion>iOS-iPadOS 17 includes a new feature that allows the previous passcode to be valid for 72 hours after a passcode change. If t...Rule High Severity -
PP-MDF-333050
<GroupDescription></GroupDescription>Group -
PP-MDF-993300
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Apple iOS/iPadOS 17 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].
<VulnDiscussion>Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious appl...Rule Medium Severity -
PP-MDF-333070
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must not include applications with the following characteristics: access to Siri when the device is locked.
<VulnDiscussion>Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., un...Rule Medium Severity -
PP-MDF-333070
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 allow list 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.
<VulnDiscussion>Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., un...Rule Medium Severity -
PP-MDF-333080
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to not display notifications when the device is locked.
<VulnDiscussion>Many mobile devices display notifications on the lock screen so users can obtain relevant information in a timely manner with...Rule Medium Severity -
PP-MDF-333080
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must not display notifications (calendar information) when the device is locked.
<VulnDiscussion>Many mobile devices display notifications on the lock screen so users can obtain relevant information in a timely manner with...Rule Medium Severity -
Apple iOS/iPadOS 17 must be configured to not allow backup of [all applications, configuration data] to locally connected systems.
<VulnDiscussion>Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. ...Rule Medium Severity -
PP-MDF-333280
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must not allow non-DOD applications to access DOD data.
<VulnDiscussion>App data sharing gives apps the ability to access the data of other apps for enhanced user functionality. However, sharing al...Rule Medium Severity -
PP-MDF-333290
<GroupDescription></GroupDescription>Group -
Apple iPadOS 17 must be configured to disable multiuser modes.
<VulnDiscussion>Multiuser mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date,...Rule Medium Severity -
PP-MDF-333300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to [selection: wipe protected data, wipe sensitive data] upon unenrollment from MDM.
<VulnDiscussion>When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized bec...Rule Medium Severity -
PP-MDF-333310
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to [selection: remove Enterprise applications, remove all noncore applications (any nonfactory-installed application)] upon unenrollment from MDM.
<VulnDiscussion>When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized bec...Rule Medium Severity -
PP-MDF-333330
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must be configured to disable ad hoc wireless client-to-client connection capability.
<VulnDiscussion>Ad hoc wireless client-to-client connections allow mobile devices to communicate with each other directly, circumventing netw...Rule Medium Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must require a valid password be successfully entered before the mobile device data is unencrypted.
<VulnDiscussion>Passwords provide a form of access control that prevents unauthorized individuals from accessing computing resources and sens...Rule High Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must implement the management setting: limit Ad Tracking.
<VulnDiscussion>Ad Tracking refers to the advertisers' ability to categorize the device and spam the user with ads that are most relevant to ...Rule Low Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must implement the management setting: not allow automatic completion of Safari browser passcodes.
<VulnDiscussion>The AutoFill functionality in the Safari web browser allows the user to complete a form that contains sensitive information, ...Rule Low Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must implement the management setting: Encrypt backups/Encrypt local backup.
<VulnDiscussion>If iCloud backups are not encrypted, this could lead to the unauthorized disclosure of DOD sensitive information if non-DOD p...Rule Medium Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group -
Apple iOS/iPadOS 17 must implement the management setting: use SSL for Exchange ActiveSync.
<VulnDiscussion>Exchange email messages are a form of data in transit and thus are vulnerable to eavesdropping and man-in-the-middle attacks....Rule Medium Severity -
PP-MDF-993300
<GroupDescription></GroupDescription>Group
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