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


Overview

Finding ID Version Rule ID IA Controls Severity
V-22403 GEN003505 SV-46155r1_rule Low
Description
Process core dumps contain the memory in use by the process when it crashed. Any data the process was handling may be contained in the core file, and it must be protected accordingly. If the process core dump data directory has an extended ACL, unauthorized users may be able to view or to modify sensitive information contained in any process core dumps in the directory.
STIG Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide 2018-09-19

Details

Check Text ( C-43416r1_chk )
Check the defined directory for process core dumps.

Procedure:
Check the defined directory for process core dumps.
# cat /proc/sys/kernel/core_pattern|xargs -n1 -IPATTERN dirname PATTERN

Check the permissions of the directory.
# ls -lLd
If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.
Fix Text (F-39494r1_fix)
Remove the extended ACL from the file.
# setfacl --remove-all