The systems boot loader configuration file(s) must have mode 0600 or less permissive.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000225

SV-63093r1_rule The systems boot loader configuration file(s) must have mode 0600 or less permissive.

Vulnerability discussion

File permissions greater than 0600 on boot loader configuration files could allow an unauthorized user to view or modify sensitive information pertaining to system boot instructions.

Check content

Check /boot/grub/grub.conf permissions: # ls -lL /boot/grub/grub.conf If /boot/grub/grub.conf has a mode more permissive than 0600, then this is a finding. For any bootloader other than GRUB which has been authorized, justified and documented for use on the system refer to the vendor documentation for the location of the configuration file. If the bootloader configuration file has a mode more permissive than 0600, this is a finding.

Fix text

Change the mode of the grub.conf file to 0600. # chmod 0600 /boot/grub/grub.conf

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