RHEL 8 must display a banner before granting local or remote access to the system via a graphical user logon.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-244519	RHEL-08-010049	SV-244519r743806_rule		Medium

Description
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

Description

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

STIG	Date
Red Hat Enterprise Linux 8 Security Technical Implementation Guide	2024-02-19

Details

Check Text ( C-47794r743804_chk )
Verify RHEL 8 displays a banner before granting access to the operating system via a graphical user logon. Note: This requirement assumes the use of the RHEL 8 default graphical user interface, Gnome Shell. If the system does not have any graphical user interface installed, this requirement is Not Applicable. Check to see if the operating system displays a banner at the logon screen with 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" or is missing, this is a finding.

Check Text ( C-47794r743804_chk )

Verify RHEL 8 displays a banner before granting access to the operating system via a graphical user logon.

Note: This requirement assumes the use of the RHEL 8 default graphical user interface, Gnome Shell. If the system does not have any graphical user interface installed, this requirement is Not Applicable.

Check to see if the operating system displays a banner at the logon screen with 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" or is missing, this is a finding.

Fix Text (F-47751r743805_fix)
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

Fix Text (F-47751r743805_fix)

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