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Unattended or automatic logon via the RHEL 8 graphical user interface must not be allowed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-230329 RHEL-08-010820 SV-230329r627750_rule High
Description
Failure to restrict system access to authenticated users negatively impacts operating system security.
STIG Date
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 2022-06-15

Details

Check Text ( C-32998r567733_chk )
Verify the operating system does not allow an unattended or automatic logon to the system via a graphical user interface.

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 for the value of the "AutomaticLoginEnable" in the "/etc/gdm/custom.conf" file with the following command:

$ sudo grep -i automaticloginenable /etc/gdm/custom.conf

AutomaticLoginEnable=false

If the value of "AutomaticLoginEnable" is not set to "false", this is a finding.
Fix Text (F-32973r567734_fix)
Configure the operating system to not allow an unattended or automatic logon to the system via a graphical user interface.

Add or edit the line for the "AutomaticLoginEnable" parameter in the [daemon] section of the "/etc/gdm/custom.conf" file to "false":

[daemon]
AutomaticLoginEnable=false