Samsung Android OS 8 with Knox 3.x COBO Use Case Security Technical Implementation Guide

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: [email protected] This set of requirements is for the Corporate Owned Business Only (COBO) use case and assumes no personal data or applications are installed on the Samsung device and the full device is a secure work environment.

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Version / Release: V1R4

Published: 2019-10-01

Updated At: 2019-11-11 10:48:52

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Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-94865r1_rule KNOX-08-000100 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Account whitelist. Whitelisting of authorized email accounts (POP3, IMAP, EAS) prevents a user from configuring a personal email account that could be used to forward sensitive DoD data to unauthorized recipients. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94867r1_rule KNOX-08-000200 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Account blacklist. Blacklisting all email accounts is required so only whitelisted accounts can be configured. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94869r1_rule KNOX-08-000700 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Configure application disable list. Applications from various sources (including the vendor, the carrier, and Google) are installed on the device at the time of manufacture. Core apps are apps pre-installed by Google. Third-party pre-installed apps include apps from the vendor and carrier.
    SV-94871r1_rule KNOX-08-001000 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Configure application install blacklist. Blacklisting all applications is required so that only whitelisted applications can be installed on the device. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicio
    SV-94873r1_rule KNOX-08-001300 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to enforce an application installation policy by specifying an application whitelist that restricts applications by either of the following characteristics: List of digital signatures or list of package names. The application whitelist, in addition to controlling the installation of applications on the mobile device (MD), must control user access/execution of all core and pre-installed applications, or the MD must provide an alternate method of restricting user
    SV-94875r1_rule KNOX-08-001600 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Back up mobile device (MD) data to non-DoD cloud servers (including user and application access to cloud backup services). Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94877r1_rule KNOX-08-001700 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Voice assistant application if available when mobile device (MD) is locked. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94879r1_rule KNOX-08-001800 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Voice dialing application if available when MD is locked. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94881r1_rule KNOX-08-001900 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Allows synchronization of data or applications between devices associated with user. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94883r1_rule KNOX-08-002000 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Allows unencrypted (or encrypted but not FIPS 140-2 validated) data sharing with other mobile devices (MDs) or printers. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94885r1_rule KNOX-08-002100 CCI-000366 MEDIUM The Samsung Android 8 with Knox whitelist must be configured to not include applications with the following characteristics: Transmit mobile device (MD) diagnostic data to non-DoD servers. Requiring all authorized applications to be in an application whitelist prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the whitelist. Failure to configure an application whitelist properly could allow unaut
    SV-94887r1_rule KNOX-08-002900 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including [selection: DoD-approved commercial app repository, MDM server, mobile application store]: Disable unknown sources. 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 such installations and executions could cause a compromise
    SV-94889r1_rule KNOX-08-003200 CCI-000366 LOW Samsung Android 8 with Knox must be configured to: Add the MDM Client application to the Battery optimizations modes Whitelist. Doze and App Standby are power-saving features that extend battery life by deferring background CPU and network activity. If the MDM Client is put into Doze or App Standby mode, the MDM Administrator may not be able to administrate the mobile device (MD)
    SV-94891r1_rule KNOX-08-003500 CCI-000366 LOW Samsung Android 8 with Knox must be configured to: Disable Bixby Vision. Bixby Vision's image and text recognition capabilities use cloud-based processing. This may leak sensitive DoD data. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94893r1_rule KNOX-08-004000 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Enable Audit Log. 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. They facilitate analysis to improve performance and secur
    SV-94895r1_rule KNOX-08-007300 CCI-001199 MEDIUM Samsung Android 8 with Knox must be configured to not display the following 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 new notifications. However, in many cases, these notifica
    SV-94897r1_rule KNOX-08-008100 CCI-000366 MEDIUM Samsung Android 8 mobile 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, if the Authorizing Official (AO) has approved the use of
    SV-94899r1_rule KNOX-08-008200 CCI-000366 MEDIUM The Samsung DeX Station/Pad multimedia dock must not be connected directly to a DoD network. If the Samsung DeX Station/Pad multimedia dock is connected to a DoD network, the Samsung smartphone connected to the DeX Station will be connected to the DoD network as well. The Samsung smartphone most likely has a number of personal apps installed that
    SV-94901r1_rule KNOX-08-008300 CCI-000205 LOW Samsung Android 8 with Knox 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 permitted, how quickly an adversary can do each attempt, an
    SV-94903r1_rule KNOX-08-008600 CCI-000366 LOW Samsung Android 8 with Knox must be configured to not allow passwords that include more than two 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 to guess than those that do not contain repeating or sequen
    SV-94905r2_rule KNOX-08-008800 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Configure minimum password complexity. 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 permitted, how quickly an adversary can do each attempt, an
    SV-94907r1_rule KNOX-08-009100 CCI-000057 MEDIUM Samsung Android 8 with Knox 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 physical access to the mobile device through loss, theft, et
    SV-94909r1_rule KNOX-08-009400 CCI-000044 LOW Samsung Android 8 with Knox 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 attempts mitigates this risk. Setting the limit at 10 or few
    SV-94911r1_rule KNOX-08-010300 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to disable authentication mechanisms providing user access to protected data other than a Password Authentication Factor, including biometric fingerprint, iris, face, voice, hybrid authentication factor: Disable Trust Agents. Note: This requirement is Not Applicable (NA) if the non-Password Authentication Factor mechanism is included in the products Common Criteria evaluation (fingerprint and iris scan are allowed). Trust Agents allow a user to unlock a mobile device without entering a passcode when the mobile device is, for example, connected to a user-selected Bluetooth device or in a user-selected location. This technology would allow unauthorized users to have ac
    SV-94913r1_rule KNOX-08-010800 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to disable authentication mechanisms providing user access to protected data other than a Password Authentication Factor, including biometric fingerprint, iris, face, voice, and hybrid authentication factor: Disable Intelligent Scanning. Note: This requirement is Not Applicable (NA) if the non-Password Authentication Factor mechanism is included in the products Common Criteria evaluation (fingerprint and iris scan are allowed). The Intelligent Scanning feature allows a user's face and iris to be registered and used such that either authentication method returning a match will unlock the device. Intelligent Scanning combines the known weaknesses of iris and face scanning that co
    SV-94915r1_rule KNOX-08-011000 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to disable authentication mechanisms providing user access to protected data other than a Password Authentication Factor, including biometric fingerprint, iris, face, voice, and hybrid authentication factor: Disable Face Recognition. Note: This requirement is Not Applicable (NA) if the non-Password Authentication Factor mechanism is included in the products Common Criteria evaluation (fingerprint and iris scan are allowed). The Face Recognition feature allows a user's face to be registered and used to unlock the device. This technology would allow unauthorized users to have access to DoD sensitive data if compromised. By not permitting the use of non-password authentication
    SV-94917r1_rule KNOX-08-012700 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable automatic completion of browser text input. The auto-fill functionality in the web browser allows the user to complete a form that contains sensitive information, such as personally identifiable information (PII), without previous knowledge of the information. By allowing the use of auto-fill funct
    SV-94919r1_rule KNOX-08-013000 CCI-000366 MEDIUM Samsung Android 8 with Knox must be configured to disable multi-user modes. Multi-user mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date, no mobile device with multi-user mode features meets DoD requirements for access control, data separation, and non-repudiation f
    SV-94921r1_rule KNOX-08-013200 CCI-000381 LOW Samsung Android 8 with Knox must be configured to disable automatic transfer of diagnostic data to an external device other than an MDM service with which the device has enrolled: Disable Google Crash Report. Many software systems automatically send diagnostic data to the manufacturer or a third party. This data enables the developers to understand real-world field behavior and improve the product based on that information. Unfortunately, it can also reveal in
    SV-94923r1_rule KNOX-08-013300 CCI-000381 LOW Samsung Android 8 with Knox must be configured to disable automatic transfer of diagnostic data to an external device other than an MDM service with which the device has enrolled: Disable Report Diagnostic Info. Many software systems automatically send diagnostic data to the manufacturer or a third party. This data enables the developers to understand real-world field behavior and improve the product based on that information. Unfortunately, it can also reveal in
    SV-94925r1_rule KNOX-08-013500 CCI-000381 LOW Samsung Android 8 with Knox must be configured to disable automatic transfer of diagnostic data to an external device other than an MDM service with which the device has enrolled: Disable Google Usage and diagnostics. Many software systems automatically send diagnostic data to the manufacturer or a third party. This data enables the developers to understand real-world field behavior and improve the product based on that information. Unfortunately, it can also reveal in
    SV-94927r1_rule KNOX-08-013900 CCI-000366 LOW Samsung Android 8 with Knox must be configured to disable all Bluetooth profiles except for HSP (Headset Profile), HFP (HandsFree Profile), and SPP (Serial Port 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 should be disabled. SFR ID: FMT_SMF_EXT.1.1 #18h
    SV-94929r1_rule KNOX-08-014100 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable Allow New Admin Install. An application with Administrator permissions (e.g., MDM agent) is allowed to configure policies on the device. If a user is allowed to install another MDM agent on the device, this will allow another MDM Administrator (assuming it has the proper Knox lic
    SV-94931r1_rule KNOX-08-014200 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable Admin Remove. DoD policy requires DoD mobile devices to be managed via a mobile device management service. If Admin Remove is not disabled, the mobile device user can remove the Administrator (MDM) from the device. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94933r1_rule KNOX-08-014700 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable S Voice. On Samsung Android 8 with Knox devices, users may be able to access the device's contact database or calendar to obtain phone numbers and other information using a human voice even when the mobile device is locked. Often this information is personally ide
    SV-94935r1_rule KNOX-08-015000 CCI-000381 MEDIUM Samsung Android 8 with Knox 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 potential vector for malware and unauthorized data exfiltratio
    SV-94937r2_rule KNOX-08-015300 CCI-000366 HIGH Samsung Android 8 with Knox must implement the management setting: Enable CC mode. CC mode implements several security controls required by the Mobile Device Functional Protection Profile (MDFPP). If CC mode is not implemented, DoD data is more at risk of being compromised, and the mobile device is more at risk of being compromised if l
    SV-94939r1_rule KNOX-08-015500 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable Manual Date Time Changes. 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 clocks with an authoritative time source is needed in ord
    SV-94941r1_rule KNOX-08-015700 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: USB host mode whitelist. The USB host mode feature allows select USB devices to connect to the device (e.g., USB flash drives, USB mouse, USB keyboard) using a micro USB to USB adapter cable. A user can copy sensitive DoD information to external USB storage unencrypted, resulting
    SV-94943r1_rule KNOX-08-015950 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Configure disable Share Via List. The "Share Via List" feature allows the transfer of data between nearby Samsung devices via Android Beam, Wi-Fi Direct, Link Sharing, and Share to Device. If sharing were enabled, sensitive DoD data could be compromised. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94945r1_rule KNOX-08-016000 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Disable Android Beam. Android Beam allows transfer of data through NFC and Bluetooth by touching two unlocked devices together. If it were enabled, sensitive DoD data could be transmitted. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94947r1_rule KNOX-08-016500 CCI-000366 LOW Samsung Android 8 with Knox must be configured to: Disable upload of DoD contact information. Caller ID and spam protection apps let a user know who is calling even when the number is not on the user's contact list by using an online service to do the lookup. Users can also upload their and their contacts' names and numbers into an online service.
    SV-94949r1_rule KNOX-08-016800 CCI-000366 MEDIUM Samsung Android 8 with Knox for Android must implement the management setting: Disable Samsung Wi-Fi Sharing. Wi-Fi Tethering allows a device to act as an Access Point, sharing its data connection with other wirelessly connected devices. Previously the device could only share its mobile (cellular) data connection. On the Device menus, this is referred to as "Mobi
    SV-94951r1_rule KNOX-08-017100 CCI-002338 MEDIUM Samsung Android 8 with Knox must be configured to not allow backup of [all applications, configuration data] to remote systems: Disable Allow Google Accounts Auto Sync. Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Samsung Android 8 with Knox. Where the remote backup involves a cloud-based solution, the backup cap
    SV-94953r1_rule KNOX-08-017300 CCI-000097 MEDIUM Samsung Android 8 with Knox must be configured to not allow backup of [all applications, 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 connected or cloud based), many if not all of these mechanisms ar
    SV-94955r1_rule KNOX-08-017400 CCI-002338 MEDIUM Samsung Android 8 with Knox must be configured to not allow backup of [all applications, configuration data] to remote systems: Deselect Allow Google Backup. Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Samsung Android 8 with Knox. Where the remote backup involves a cloud-based solution, the backup cap
    SV-94957r1_rule KNOX-08-017900 CCI-000381 MEDIUM Samsung Android 8 with Knox must be configured to disable developer modes. Developer modes expose features of the Samsung Android 8 with Knox that are not available during standard operation. An adversary may leverage a vulnerability inherent in a developer mode to compromise the confidentiality, integrity, and availability of D
    SV-94959r1_rule KNOX-08-018100 CCI-002314 MEDIUM Samsung Android 8 with Knox 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 sophisticated adversary may also be able to exploit unknown system
    SV-94961r1_rule KNOX-08-018450 CCI-000366 HIGH The Samsung Android 8 with Knox device must have the latest available Samsung Android operating system (OS) installed. Required security features are not available in earlier OS versions. In addition, there may be known vulnerabilities in earlier versions. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-94963r1_rule KNOX-08-018500 CCI-001199 HIGH Samsung Android 8 with Knox must be configured to enable encryption for information at rest on removable storage media or alternately, the use of removable storage media must be disabled. Samsung Android 8 with Knox 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 operating system enforces permissions
    SV-94965r1_rule KNOX-08-019100 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Enable Certificate Revocation Status (CRL) Check. A CRL allows a certificate issuer to revoke a certificate for any reason, including improperly issued certificates and compromise of the private keys. Checking the revocation status of the certificate mitigates the risk associated with using a compromised
    SV-94967r1_rule KNOX-08-019400 CCI-000366 MEDIUM Samsung Android 8 with Knox must implement the management setting: Install DoD root and intermediate PKI certificates on the device. 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 adversary could falsely sign a certificate in such a way that it
    SV-94969r1_rule KNOX-08-020400 CCI-000048 LOW Samsung Android 8 with Knox must be configured to display the DoD advisory warning message at start-up or each time the user unlocks the device. The Samsung Android 8 with Knox is required to display the DoD-approved system use notification message or banner before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, di