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The system's boot loader configuration file(s) must not have extended ACLs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22585 GEN008740 SV-26984r1_rule ECLP-1 Medium
Description
File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. If extended ACLs are present on the system's boot loader configuration file(s), these files may be vulnerable to unauthorized access or modification, which could compromise the system's boot process.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2016-06-01

Details

Check Text ( C-37229r3_chk )
Check the permissions of the file.

# ls -lL /boot/grub/grub.conf

If the permissions of the file or directory contains a '+', an extended ACL is present. This is a finding.
Fix Text (F-24248r1_fix)
Remove the extended ACL from the file.
# setfacl --remove-all /etc/grub.conf