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

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-37942r1_rule The system's 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.

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Fix text

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

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