The SUSE operating system must not allow unattended or automatic logon via the graphical user interface (GUI).

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
high	V-235031	SRG-OS-000480-GPOS-00229	SLES-15-040430	SV-235031r991591_rule	2025-02-27	2

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

ℹ️ Check
Note: If a graphical user interface is not installed, this requirement is Not Applicable. Verify the SUSE operating system does not allow unattended or automatic logon via the GUI. Check that unattended or automatic login is disabled with the following commands: > grep -i ^DISPLAYMANAGER_AUTOLOGIN /etc/sysconfig/displaymanager DISPLAYMANAGER_AUTOLOGIN="" > grep -i ^DISPLAYMANAGER_PASSWORD_LESS_LOGIN /etc/sysconfig/displaymanager DISPLAYMANAGER_PASSWORD_LESS_LOGIN="no" If the "DISPLAYMANAGER_AUTOLOGIN" parameter includes a username or the "DISPLAYMANAGER_PASSWORD_LESS_LOGIN" If parameter is not set to "no", this is a finding.

ℹ️ Check

Note: If a graphical user interface is not installed, this requirement is Not Applicable. Verify the SUSE operating system does not allow unattended or automatic logon via the GUI. Check that unattended or automatic login is disabled with the following commands: > grep -i ^DISPLAYMANAGER_AUTOLOGIN /etc/sysconfig/displaymanager DISPLAYMANAGER_AUTOLOGIN="" > grep -i ^DISPLAYMANAGER_PASSWORD_LESS_LOGIN /etc/sysconfig/displaymanager DISPLAYMANAGER_PASSWORD_LESS_LOGIN="no" If the "DISPLAYMANAGER_AUTOLOGIN" parameter includes a username or the "DISPLAYMANAGER_PASSWORD_LESS_LOGIN" If parameter is not set to "no", this is a finding.

✔️ Fix
Note: If a graphical user interface is not installed, this requirement is Not Applicable. Configure the SUSE operating system GUI to not allow unattended or automatic logon to the system. Add or edit the following lines in the "/etc/sysconfig/displaymanager" configuration file: DISPLAYMANAGER_AUTOLOGIN="" DISPLAYMANAGER_PASSWORD_LESS_LOGIN="no"