Detections
Analytics

AIOS-11-003500 - Apple iOS must be configured to display DoD advisory warning message at start-up or each time the user unlocks the device.

Warning! Audit Deprecated

This audit has been deprecated and will be removed in a future update.

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Information

Apple iOS 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 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.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

Configure the DoD warning banner by either of the following methods (required text is found in the Vulnerability Description):

1. By placing the DoD warning banner text in the user agreement signed by each iOS device user (preferred method)
2. By creating a background picture with the relevant information and configuring that picture as the background for the lock screen via the Apple iOS management tool

See Also

https://iasecontent.disa.mil/stigs/zip/U_Apple_iOS_11_V1R4_STIG.zip

Item Details

References: CAT|III, CCI|CCI-000048, Rule-ID|SV-93087r1_rule, STIG-ID|AIOS-11-003500, Vuln-ID|V-78381

Plugin: MDM

Control ID: 4ca20d8c8aeeda4d55a8db1da3872ac2fccaf4a9f2ac244adb5817e908195ccb