The /etc/sysctl.conf file must not have an extended ACL.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22596	GEN000000-LNX00530	SV-44758r1_rule		Medium

Description
The sysctl.conf file specifies the values for kernel parameters to be set on boot. These settings can affect the system's security.

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

Details

Check Text ( C-42263r1_chk )
Check the permissions of the file. # ls -lLd /etc/sysctl.conf If the permissions of the file or directory contains a '+', an extended ACL is present. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix Text (F-38208r1_fix)
Remove the extended ACL from the file. # setfacl --remove-all /etc/sysctl.conf