The system boot loader configuration file(s) must be group-owned by root.

From Red Hat Enterprise Linux 6 Security Technical Implementation Guide

Associated with: CCI-000366

SV-50382r2_rule The system boot loader configuration file(s) must be group-owned by root.

Vulnerability discussion

The "root" group is a highly-privileged group. Furthermore, the group-owner of this file should not have any access privileges anyway.

Check content

To check the group ownership of "/boot/grub/grub.conf", run the command: $ ls -lL /boot/grub/grub.conf If properly configured, the output should indicate the group-owner is "root". If it does not, this is a finding.

Fix text

The file "/boot/grub/grub.conf" should be group-owned by the "root" group to prevent destruction or modification of the file. To properly set the group owner of "/boot/grub/grub.conf", run the command: # chgrp root /boot/grub/grub.conf

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