Skip to content

The Oracle Linux operating system must be configured so the x86 Ctrl-Alt-Delete key sequence is disabled in the Graphical User Interface.

An XCCDF Rule

Description

<VulnDiscussion>A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In the graphical environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID
SV-228565r603260_rule
Severity
High
References
Updated



Remediation - Manual Procedure

Configure the system to disable the Ctrl-Alt-Delete sequence for the graphical user interface with the following command:

# touch /etc/dconf/db/local.d/00-disable-CAD 

Add the setting to disable the Ctrl-Alt-Delete sequence for the graphical user interface: