Samsung Android OS 15 with Knox 3.x COPE Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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PP-MDF-333025
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Samsung Android 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-333030
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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 -
PP-MDF-333030
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PP-MDF-333040
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Samsung Android 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-333050
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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 -
PP-MDF-333060
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Samsung Android's Work environment must be configured to enforce an application installation policy by specifying an application allowlist that restricts applications by the following characteristics: Names.
The application allowlist, in addition to controlling the installation of applications on the MD, must control user access/execution of all core and preinstalled applications, or the MD must provid...Rule Medium Severity -
PP-MDF-333070
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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 -
PP-MDF-333070
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Samsung Android 15 allowlist must be configured to not include artificial intelligence (AI) applications that process device data in the cloud, including Google Gemini.
Sensitive DOD data could be exposed when an AI app processes device data in the cloud. SFRID: FMT_SMF.1.1 #8Rule Medium Severity -
PP-MDF-333080
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Samsung Android must be configured to not display the following (Work Environment) notifications when the device is locked: 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 -
PP-MDF-333100
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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 -
PP-MDF-333110
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PP-MDF-333130
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Samsung Android must be configured to disable developer modes.
Developer modes expose features of the MOS that are not available during standard operation. An adversary may leverage a vulnerability inherent in a developer mode to compromise the confidentiality...Rule Medium Severity -
PP-MDF-333160
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Samsung Android 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-333230
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Samsung Android 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 -
PP-MDF-333240
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PP-MDF-333250
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PP-MDF-331080
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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 -
PP-MDF-333024
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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 -
PP-MDF-333260
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Samsung Android must be configured to enable authentication of personal hotspot connections to the device using a preshared 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 -
PP-MDF-333280
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Samsung Android's Work profile must be configured to disable exceptions to the access control policy that prevent application processes and groups of application processes from accessing all data stored by other application processes and groups of application processes.
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 -
PP-MDF-333320
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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-993300
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Samsung Android must be enrolled as a COPE device.
The Work profile is the designated application group for the COPE use case. SFRID: FMT_MOF_EXT.1.2 #47Rule Medium Severity -
PP-MDF-993300
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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 -
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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PP-MDF-993300
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PP-MDF-993300
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Samsung Android's Work profile must be configured to enable Common Criteria (CC) mode.
The CC mode feature is a superset of other features and behavioral changes that are mandatory MDFPP requirements. If CC mode is not implemented, the device will not be operating in the NIAP-certifi...Rule Low Severity
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