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The kernel core dump data directory must have mode 0700 or less permissive.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22406 GEN003522 SV-26612r2_rule Low
Description
Kernel core dumps may contain the full contents of system memory at the time of the crash. As the system memory may contain sensitive information, it must be protected accordingly. If the mode of the kernel core dump data directory is more permissive than 0700, unauthorized users may be able to view or to modify kernel core dump data files.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2016-06-01

Details

Check Text ( C-27651r2_chk )
Verify the location of the kernel core dump data directory:
# grep “path” /etc/kdump.conf

Note: If this setting is not configured or commented out, the default kernel dump data directory is /var/crash.

Check the permissions of the dump data directory:
# ls -ld

If the directory has a mode more permissive than 0700, this is a finding.
Fix Text (F-31610r2_fix)
Set the permissions on the kernel core dump data directory to 0700.
# chmod 0700