The operating system must not allow an unattended or automatic logon to the system via a graphical user interface.

From Red Hat Enterprise Linux 7 Security Technical Implementation Guide

Associated with: CCI-000366

SV-86577r1_rule The operating system must not allow an unattended or automatic logon to the system via a graphical user interface.

Vulnerability discussion

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

Check content

Verify the operating system does not allow an unattended or automatic logon to the system via a graphical user interface. Note: If the system does not have GNOME 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 automaticloginenable /etc/gdm/custom.conf AutomaticLoginEnable=false If the value of "AutomaticLoginEnable" is not set to "false", this is a finding.

Fix text

Configure the operating system to not allow an unattended or automatic logon to the system via a graphical user interface. Note: If the system does not have GNOME installed, this requirement is Not Applicable. 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

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