Samsung Android OS 13 with Knox 3.x COBO Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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PP-MDF-990000
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PP-MDF-323160
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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-323025
Group -
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-323026
Group -
Samsung Android 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 -
PP-MDF-323024
Group -
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 -
PP-MDF-323040
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PP-MDF-323030
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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-323110
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PP-MDF-323030
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PP-MDF-323250
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Samsung Android must be configured to not allow backup of all applications and configuration data to remote systems. - Disable Backup Services.
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-323130
Group -
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-323320
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PP-MDF-323100
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PP-MDF-323230
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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-323240
Group -
Samsung Android must be configured to not allow backup of all applications and configuration data to locally connected systems.
Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connect...Rule Medium Severity -
PP-MDF-323260
Group -
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, an adversary may be able to use that device to perform attacks on other devices or networks without detection. A sophisti...Rule Medium Severity -
PP-MDF-990000
Group -
PP-MDF-990000
Group -
PP-MDF-323060
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PP-MDF-323070
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PP-MDF-323080
Group -
PP-MDF-990000
Group -
PP-MDF-990000
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PP-MDF-323250
Group -
Samsung Android must be configured to not allow backup of all applications, configuration data to remote systems. - 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-323350
Group -
PP-MDF-323050
Group -
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-990000
Group -
PP-MDF-321080
Group -
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 #47Rule 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 #47Rule 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
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