STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

The SUSE operating system must display a banner before granting local or remote access to the system via a graphical user logon.

DISA Rule

SV-234808r622137_rule

Vulnerability Number

V-234808

Group Title

SRG-OS-000228-GPOS-00088

Rule Version

SLES-15-010080

Severity

CAT II

CCI(s)

• CCI-001388 - The information system, for publicly accessible systems, includes a description of the authorized uses of the system.
• CCI-001386 - The information system, 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-001384 - The information system, for publicly accessible systems, displays system use information organization-defined conditions before granting further access.
• CCI-001385 - The information system, 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-001387 - The information system, for publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.

Weight

10

Fix Recommendation

Note: If the system does not have a graphical user interface installed, this requirement is Not Applicable.

Configure the SUSE operating system to display a banner before local or remote access to the system via a graphical user logon.

Create a database that will contain the system-wide graphical user logon settings (if it does not already exist) with the following command:

> sudo mkdir -p /etc/dconf/db/gdm.d
> sudo touch /etc/dconf/db/gdm.d/01-banner-message

Add the following content into /etc/dconf/profile/gdm:

user-db:user
system-db:gdm
file-db:/usr/share/gdm/greeter-dconf-defaults

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

[org/gnome/login-screen]
banner-message-enable=true

Update the system databases:

> sudo dconf update

Users must log out and back in again before the system-wide settings take effect.

Check Contents

Note: If the system does not have a graphical user interface installed, this requirement is Not Applicable.

Verify the SUSE operating system displays a banner before local or remote access to the system via a graphical user logon.

Check that the SUSE operating system displays a banner at the logon screen by performing the following command:

> grep banner-message-enable /etc/dconf/db/gdm.d/*
banner-message-enable=true

> cat /etc/dconf/profile/gdm
user-db:user
system-db:gdm
file-db:/usr/share/gdm/greeter-dconf-defaults

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

Vulnerability Number

V-234808

Documentable

False

Rule Version

SLES-15-010080

Severity Override Guidance

Note: If the system does not have a graphical user interface installed, this requirement is Not Applicable.

Verify the SUSE operating system displays a banner before local or remote access to the system via a graphical user logon.

Check that the SUSE operating system displays a banner at the logon screen by performing the following command:

> grep banner-message-enable /etc/dconf/db/gdm.d/*
banner-message-enable=true

> cat /etc/dconf/profile/gdm
user-db:user
system-db:gdm
file-db:/usr/share/gdm/greeter-dconf-defaults

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

Check Content Reference

M

Target Key

5274

Comments