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Check: RHEL-09-271040

RHEL 9 STIG: RHEL-09-271040 (in versions v1 r3 through v1 r1)

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

Verify RHEL 9 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 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. 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 [daemon] 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-258018r926041_rule

Vulnerability ID: V-258018

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

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CCIs

CCIs tied to check.

Number	Definition
CCI-000366	The organization implements the security configuration settings.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
CM-6	Configuration Settings