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Samsung Android OS 13 with Knox 3.x COBO Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • PP-MDF-990000

    Group
  • PP-MDF-990000

    Group
  • The Samsung Android device must have the latest available Samsung Android operating system (OS) installed.

    Required security features are not available in earlier OS versions. In addition, earlier versions may have known vulnerabilities. SFR ID: FMT_MOF_EXT.1.2 #47
    Rule High Severity
  • Samsung Android must be enrolled as a COBO device.

    The device is the designated application group for the COBO use case. SFR ID: FMT_MOF_EXT.1.2 #47
    Rule Medium Severity
  • 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
  • Samsung Android must be configured to disable authentication mechanisms providing user access to protected data other than a Password Authentication Factor, including face recognition.

    The biometric factor can be used to authenticate the user to unlock the mobile device. Unapproved/evaluated biometric mechanisms could allow unauthorized users to have access to DOD sensitive data ...
    Rule Medium Severity
  • Samsung Android must be configured to enable a screen-lock policy that will lock the display after a period of inactivity - Disable trust agents.

    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 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 and therefore must be disabled. SFR ID...
    Rule Low 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 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
  • Samsung Android 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
  • Samsung Android 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
  • Samsung Android must be configured to not allow installation of 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 validated) data sharing with other MDs or printers.

    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 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
  • Samsung Android 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
  • Samsung Android must be configured to prevent users from adding personal email accounts to the work email app.

    If the user is able to add a personal email account (POP3, IMAP, EAS) to the work email app, it could be used to forward sensitive DOD data to unauthorized recipients. Restricting email account add...
    Rule Medium Severity
  • Samsung Android 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 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-certifie...
    Rule Low Severity
  • 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 device users must complete required training.

    The security posture of Samsung devices requires the device user to configure several required policy rules on their device. User Based Enforcement (UBE) is required for these controls. In addition...
    Rule Medium Severity

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