STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must display the Standard Mandatory DOD or other applicable U.S. Government agency Notice and Consent Banner before granting local or remote access to the system via a graphical user login.

DISA Rule

SV-282368r1200084_rule

Vulnerability Number

V-282368

Group Title

SRG-OS-000023-GPOS-00006

Rule Version

TOSS-05-000262

Severity

CAT II

CCI(s)

• CCI-000048 - Display an organization-defined system use notification message or banner to users before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidelines.
• CCI-001384 - For publicly accessible systems, display system use information with organization-defined conditions before granting further access to the publicly accessible system.
• CCI-001385 - For publicly accessible systems, displays references, if any, to monitoring that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001386 - For publicly accessible systems, displays references, if any, to recording that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001387 - For publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001388 - For publicly accessible systems, includes a description of the authorized uses of the system.

Weight

10

Fix Recommendation

Configure TOSS 5 to display the Standard Mandatory DOD or other applicable U.S. Government agency Notice and Consent Banner before granting access to the system via a graphical user login.

Create a database to contain the systemwide graphical user login settings (if it does not already exist) using the following command:

$ sudo touch /etc/dconf/db/local.d/01-banner-message

Add the following lines to the [org/gnome/login-screen] section of the "/etc/dconf/db/local.d/01-banner-message":

[org/gnome/login-screen]

banner-message-enable=true

Run the following command to update the database:

$ sudo dconf update

Check Contents

Verify TOSS 5 displays a banner before granting access to the operating system via a graphical user login.

Note: This requirement assumes the use of the TOSS 5 default graphical user interface—the GNOME desktop environment. If the system does not have a graphical user interface installed, this requirement is not applicable.

Determine if the operating system displays a banner at the login screen using the following command:

$ sudo grep banner-message-enable /etc/dconf/db/local.d/*

banner-message-enable=true

If "banner-message-enable" is set to "false", is commented out, or is missing, this is a finding.

Vulnerability Number

V-282368

Documentable

False

Rule Version

TOSS-05-000262

Severity Override Guidance

Verify TOSS 5 displays a banner before granting access to the operating system via a graphical user login.

Note: This requirement assumes the use of the TOSS 5 default graphical user interface—the GNOME desktop environment. If the system does not have a graphical user interface installed, this requirement is not applicable.

Determine if the operating system displays a banner at the login screen using the following command:

$ sudo grep banner-message-enable /etc/dconf/db/local.d/*

banner-message-enable=true

If "banner-message-enable" is set to "false", is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5738