The kernel core dump data directory must not have an extended ACL.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22407	GEN003523	SV-45715r1_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 there is an extended ACL for the kernel core dump data directory, unauthorized users may be able to view or to modify kernel core dump data files.

STIG	Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide	2018-09-19

Details

Check Text ( C-43081r1_chk )
Determine the kernel core dump data directory and check its permissions. # ls -ld /var/crash If the permissions include a '+' the file has an extended ACL, this is a finding.

Fix Text (F-39113r1_fix)
Remove the extended ACL from the file. # setfacl --remove-all /var/crash