The Red Hat Enterprise Linux operating system must not allow an unrestricted logon to the system.

From Red Hat Enterprise Linux 7 Security Technical Implementation Guide

Part of SRG-OS-000480-GPOS-00229

Associated with: CCI-000366

SV-86579r3_rule The Red Hat Enterprise Linux operating system must not allow an unrestricted logon to the system.

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 unrestricted 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 "TimedLoginEnable" parameter in "/etc/gdm/custom.conf" file with the following command: # grep -i timedloginenable /etc/gdm/custom.conf TimedLoginEnable=false If the value of "TimedLoginEnable" is not set to "false", this is a finding.

Fix text

Configure the operating system to not allow an unrestricted account to log on 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 "TimedLoginEnable" parameter in the [daemon] section of the "/etc/gdm/custom.conf" file to "false": [daemon] TimedLoginEnable=false

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