Microsoft Android 11 COBO Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Microsoft Android 11 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 -
Microsoft Android 11 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 -
Microsoft Android 11 allow list 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; - Voice assistant application if available when MD is locked; - Voice dialing application if available when MD is locked; - 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 -
Microsoft Android 11 must be configured to not display the following (work profile) notifications when the device is locked: [selection: - Email notifications - Calendar appointments - Contact associated with phone call notification - Text message notification - Other application-based notifications - All notifications].
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 -
Microsoft Android 11 must be configured to disable developer modes.
Developer modes expose features of the Microsoft Android device that are not available during standard operation. An adversary may leverage a vulnerability inherent in a developer mode to compromis...Rule Medium Severity -
Microsoft Android 11 must be configured to disable USB mass storage mode.
USB mass storage mode enables the transfer of data and software from one device to another. This software can include malware. When USB mass storage is enabled on a mobile device, it becomes a pote...Rule Medium Severity -
Microsoft Android 11 must be configured to not allow backup of all applications and configuration data to remote systems.
Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Microsoft Android device. Where the remote...Rule Medium Severity -
The mobile operating system must allow only the Administrator (MDM) to perform the following management function: Enable/disable location services.
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 Low Severity -
Microsoft Android 11 must be configured to generate audit records for the following auditable events: Detected integrity violations.
Audit logs enable monitoring of security-relevant events and subsequent forensics when breaches occur. They help identify attacks so that breaches can either be prevented or limited in their scope....Rule Medium Severity -
Microsoft Android 11 must be configured to enforce that Wi-Fi Sharing is disabled.
Wi-Fi Sharing is an optional configuration of Wi-Fi Tethering/Mobile Hotspot, which allows the device to share its Wi-Fi connection with other wirelessly connected devices instead of its mobile (ce...Rule Medium Severity
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