The Samsung KNOX for Android platform must display the DoD advisory warning message at start-up or each time the user unlocks the device.

From Samsung Android OS 6 (with KNOX 2.x) Security Technical Implementation Guide

Part of PP-MDF-201015

Associated with: CCI-000048 CCI-000366

SV-84291r1_rule The Samsung KNOX for Android platform must display the DoD advisory warning message at start-up or each time the user unlocks the device.

Vulnerability discussion

The mobile operating system 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, directives, policies, regulations, standards, and guidance. Required banners help ensure that DoD can audit and monitor the activities of mobile device users without legal restriction.System use notification messages can be displayed when individuals first access or unlock the mobile device. The banner shall be implemented as a "click-through" banner at device unlock (to the extent permitted by the operating system). A "click-through" banner prevents further activity on the information system unless and until the user executes a positive action to manifest agreement by clicking on a box indicating “OK.”The approved DoD text must be used exactly as required in the Knowledge Service (KS) referenced in DoDI 8500.01. For devices accommodating banners of 1300 characters, the banner text is: You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.For devices with severe character limitations, the banner text is: I've read & consent to terms in IS user agreem't.The administrator must configure the banner text exactly as written without any changes.SFR ID: FMT_SMF_EXT.1.1 #36

Check content

This validation procedure is performed on both the MDM Administration Console and the Samsung KNOX for Android device. Check whether the appropriate setting is configured on the MDM Administration Console: 1. Ask the MDM administrator to display the "Enable DoD Banner" check box and "Banner Text" field in the "Android Restrictions" rule. 2. Verify the "Enable DoD Banner" check box is selected. 3. Verify the correct DoD-specified warning text is displayed in the Banner Text field or the field is blank. Note: The default device banner matches the required DoD banner. If the DoD banner is enabled without entering any text, the device will display a default text. On the Samsung KNOX for Android device: 1. Reboot the device. 2. Verify the device displays the DoD banner. 3. Verify the DoD banner is set to one of the authorized messages. If the specified setting is not set to the appropriate value, or the device does not display the DoD banner on reboot, this is a finding.

Fix text

Configure the mobile operating system to display the DoD-mandated warning banner text. On the MDM Administration Console, select the "Enable DoD Banner" check box and enter the correct text in the "Banner Text" field in the "Android Restrictions" rule. Note: On some MDM vendor consoles, the logon banner automatically is displayed upon reboot while the device is MDM enrolled. On these consoles, this control is not configurable through the MDM server or on the device.

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