STIGQter: STIG Summary: Fortinet FortiGate Firewall NDM Security Technical Implementation Guide Version: 1 Release: 5 Benchmark Date: 05 Jan 2026:

The FortiGate device must retain the Standard Mandatory DoD Notice and Consent Banner on the screen until the administrator acknowledges the usage conditions and takes explicit actions to log on for further access.

DISA Rule

SV-234170r960846_rule

Vulnerability Number

V-234170

Group Title

SRG-APP-000069-NDM-000216

Rule Version

FGFW-ND-000055

Severity

CAT II

CCI(s)

• CCI-000050 - Retain the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the system.

Weight

10

Fix Recommendation

Log in to the FortiGate GUI with Super-Admin privilege.

1. Open a CLI console, via SSH or available from the GUI.
2. Run the following command:
# config system global
# set pre-login-banner enable
# end
# config system replacemsg admin pre_admin-disclaimer-text
# set buffer "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."
# end

Check Contents

1. Attempt to access the FortiGate device using HTTPS URL.
2. Verify Standard Mandatory DoD Notice and Consent Banner is displayed and retained on the screen.
3. Verify a user has to explicitly ACCEPT the banner before to log on for further access.

If Standard Mandatory DoD Notice and Consent Banner is not retained, and a user is not forced to ACCEPT the banner to log on for further access, this is a finding.

And,

1. Attempt to login to the FortiGate via SSH:
2. Enter username.
3. Verify the Standard Mandatory DoD Notice and Consent Banner before prompting to enter a password.

If Standard Mandatory DoD Notice and Consent Banner is not retained before entering the password to log on for further access, this is a finding.

Vulnerability Number

V-234170

Documentable

False

Rule Version

FGFW-ND-000055

Severity Override Guidance

1. Attempt to access the FortiGate device using HTTPS URL.
2. Verify Standard Mandatory DoD Notice and Consent Banner is displayed and retained on the screen.
3. Verify a user has to explicitly ACCEPT the banner before to log on for further access.

If Standard Mandatory DoD Notice and Consent Banner is not retained, and a user is not forced to ACCEPT the banner to log on for further access, this is a finding.

And,

1. Attempt to login to the FortiGate via SSH:
2. Enter username.
3. Verify the Standard Mandatory DoD Notice and Consent Banner before prompting to enter a password.

If Standard Mandatory DoD Notice and Consent Banner is not retained before entering the password to log on for further access, this is a finding.

Check Content Reference

M

Target Key

5260