UBTU-18-010038 - The Ubuntu operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting any publically accessible connection to the system.

Information

Display of a standardized and approved use notification before granting access to the Ubuntu operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.

System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.

The banner must be formatted in accordance with applicable DoD policy:

'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.'

Satisfies: SRG-OS-000228-GPOS-00088, SRG-OS-000023-GPOS-00006

Solution

Configure the Ubuntu operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system via SSH logon.

Edit the SSH daemon configuration '/etc/ssh/sshd_config' file. Uncomment the banner keyword and configure it to point to the file that contains the correct banner. An example of this configure is below:

Banner /etc/issue

Either create the file containing the banner, or replace the text in the file with the Standard Mandatory DoD Notice and Consent Banner. The DoD required 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.'

In order for the changes to take effect, the SSH daemon must be restarted.

# sudo systemctl restart sshd.service

Item Details

Audit Name: DISA STIG Ubuntu 18.04 LTS v2r15

Category: ACCESS CONTROL

Plugin: Unix

Control ID: e0e3f7ed69fd0f3ffe81c70bf45aaf561243b4183cdb394febb0e562e48833fc

Detections

Analytics

UBTU-18-010038 - The Ubuntu operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting any publically accessible connection to the system.

Information

Solution

See Also

Item Details