Samsung Android OS 15 with Knox 3.x COBO Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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Samsung Android must be configured to disable all Bluetooth profiles except for HSP (Headset Profile), HFP (Hands-Free Profile), SPP (Serial Port Profile), A2DP (Advanced Audio Distribution Profile), AVRCP (Audio/Video Remote Control Profile), and PBAP (Phone Book Access Profile).
Some Bluetooth profiles provide the capability for remote transfer of sensitive DOD data without encryption or otherwise do not meet DOD IT security policies; therefore, must be disabled. SFRID: F...Rule Low Severity -
PP-MDF-333330
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Samsung Android 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-333350
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PP-MDF-333350
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Samsung Android must be enrolled as a COBO device.
The device is the designated application group for the COBO use case. SFRID: FMT_MOF_EXT.1.2 #47Rule Medium Severity -
PP-MDF-993300
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PP-MDF-993300
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Samsung Android's Work profile must have the DOD root and intermediate PKI certificates installed.
DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the root and intermediate certificates are not available, an adversa...Rule Medium Severity -
PP-MDF-993300
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Samsung Android's Work environment must be configured to enable audit logging.
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 -
PP-MDF-993300
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Samsung Android must not accept the certificate when it cannot establish a connection to determine the validity of a certificate.
Certificate-based security controls depend on the ability of the system to verify the validity of a certificate. If the MOS were to accept an invalid certificate, it could take unauthorized actions...Rule Low Severity -
Samsung Android 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 -
Samsung Android 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 -
Samsung Android must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including DOD-approved commercial app repository, management tool server, or 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 -
Samsung Android's Work environment must be configured to not allow installation of 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; - 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; - Payment processing; - Allows unencrypted (or encrypted but not FIPS 140-2/140-3 validated) data sharing with other MDs or printers; and - Backs up its own data to a remote system.
Requiring all authorized applications to be in an application allowlist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allowlist. Failure to con...Rule Medium Severity -
Samsung Android must be configured to enable encryption for data at rest on removable storage media or, alternately, the use of removable storage media must be disabled.
The MOS must ensure the data being written to the mobile device's removable media is protected from unauthorized access. If data at rest is unencrypted, it is vulnerable to disclosure. Even if the ...Rule High Severity -
Samsung Android must be configured to not allow backup of all applications, configuration data to remote systems. (This requirement applies to the Work Profile for COPE.) - Disable Data Sync Framework.
Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the MOS. Where the remote backup involves a cl...Rule Medium Severity -
Samsung Android must be configured to enable authentication of personal hotspot connections to the device using a pre-shared key.
If no authentication is required to establish personal hotspot connections (Wi-Fi and Bluetooth), an adversary may be able to use that device to perform attacks on other devices or networks without...Rule Medium Severity -
Samsung Android's Work environment must allow only the Administrator (management tool) to perform the following management function: Install/remove DOD root and intermediate PKI certificates.
DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the user is allowed to remove root and intermediate certificates, th...Rule Medium Severity -
Samsung Android must be configured to disallow configuration of the device's date and time.
Determining the correct time a particular application event occurred on a system is critical when conducting forensic analysis and investigating system events. Periodically synchronizing internal...Rule Medium Severity -
The Samsung Android device must be configured to disable all data signaling over [assignment: list of externally accessible hardware ports (for example, USB)].
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 -
The Samsung Android device must be configured to perform the following management function: Disable Phone Hub.
It may be possible to transfer work profile data on a DOD Android device to an unauthorized Chromebook if the user has the same Google Account set up on the Chromebook. This may result in the expos...Rule Low Severity
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