SLEM 5 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-261345	SRG-OS-000480-GPOS-00229	SLEM-05-272010	SV-261345r996493_rule	2024-06-04	1

Description
Failure to restrict system access to authenticated users negatively impacts SLEM 5 security.

ℹ️ Check
Note: If a graphical user interface is not installed, this requirement is not applicable. Verify SLEM 5 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" 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 SLEM 5 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" 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 SLEM 5 GUI to not allow unattended or automatic logon to the system. Add or modify the following lines in the "/etc/sysconfig/displaymanager" file: DISPLAYMANAGER_AUTOLOGIN="" DISPLAYMANAGER_PASSWORD_LESS_LOGIN="no"