Detections
Analytics
RHEL-06-000286 - The x86 Ctrl-Alt-Delete key sequence must be disabled.
Information
A locally logged-in 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.Solution
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'
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_RHEL_6_V2R2_STIG.zip
Item Details
Audit Name: DISA Red Hat Enterprise Linux 6 STIG v2r2
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|I, CCI|CCI-000366, Rule-ID|SV-218036r603264_rule, STIG-ID|RHEL-06-000286, STIG-Legacy|SV-50469, STIG-Legacy|V-38668, Vuln-ID|V-218036
Plugin: Unix
Control ID: 4632d10c14e0a51b09a1d9806905a77cc43840e2b0bfaac8c8ff01a4af24d2b4