Check: OL6-00-000286
Oracle Linux 6 STIG:
OL6-00-000286
(in versions v2 r7 through v1 r13)
Title
The x86 Ctrl-Alt-Delete key sequence must be disabled. (Cat I impact)
Discussion
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 mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In the GNOME 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.
Check Content
To ensure the system is configured to log a message instead of rebooting the system when “Ctrl-Alt-Delete” is pressed, ensure the following line is in "/etc/init/control-alt-delete.override": exec /usr/bin/logger -p authpriv.notice "Ctrl-Alt-Delete pressed" If the system is not configured to block the shutdown command when “Ctrl-Alt-Delete” is pressed, this is a finding.
Fix Text
By default, the system includes the following line in "/etc/init/control-alt-delete.conf" to reboot the system when the “Ctrl-Alt-Delete” key sequence is pressed: exec /sbin/shutdown -r now "Ctrl-Alt-Delete pressed" To configure the system to log a message instead of rebooting the system, add the following line to "/etc/init/control-alt-delete.override" to read as follows: exec /usr/bin/logger -p authpriv.notice "Ctrl-Alt-Delete pressed"
Additional Identifiers
Rule ID: SV-209019r793740_rule
Vulnerability ID: V-209019
Group Title: SRG-OS-000480
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |