Title

RHEL 9 must not allow unattended or automatic logon via the graphical user interface. (Cat I impact)

Discussion

Failure to restrict system access to authenticated users negatively impacts operating system security.

Check Content

Note: This requirement assumes the use of the RHEL 9 default graphical user interface, the GNOME desktop environment. If the system does not have any graphical user interface installed, this requirement is Not Applicable. Verify RHEL 9 does not allow an unattended or automatic logon to the system via a graphical user interface. Check for the value of the "AutomaticLoginEnable" in the "/etc/gdm/custom.conf" file with the following command: $ grep -i automaticlogin /etc/gdm/custom.conf AutomaticLoginEnable=false If the value of "AutomaticLoginEnable" is not set to "false", this is a finding.

Fix Text

Configure the GNOME desktop display manager to disable automatic login. Set AutomaticLoginEnable to false in the [daemon] section in /etc/gdm/custom.conf. For example: [daemon] AutomaticLoginEnable=false

Additional Identifiers

Rule ID: SV-258018r1045090_rule

Vulnerability ID: V-258018

Group Title: SRG-OS-000480-GPOS-00229

Expert Comments

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