Details
Display of a standardized and approved use notification before granting access to the 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.
Satisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000228-GPOS-00088
Solution
Configure the operating system to display a banner before granting access to the system.
Note: If the system does not have a graphical user interface installed, this requirement is Not Applicable.
Create a database to contain the system-wide graphical user logon settings (if it does not already exist) with 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
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.
References
- 800-53|AC-8a.
- 800-53|AC-8c.1.
- 800-53|AC-8c.2.
- 800-53|AC-8c.3.
- CAT|II
- CCI|CCI-000048
- CCI|CCI-001384
- CCI|CCI-001385
- CCI|CCI-001386
- CCI|CCI-001387
- CCI|CCI-001388
- Rule-ID|SV-248527r779147_rule
- STIG-ID|OL08-00-010049
- Vuln-ID|V-248527