Details
Set permission on the /etc/grub.conf file to read and write for root only.
Rationale:
Setting the permissions to read and write for root only prevents non-root users from seeing the boot parameters or changing them. Non-root users who read the boot parameters may be able to identify weaknesses in security upon boot and be able to exploit them.
Solution
Run the following command to remove excess permissions from /etc/grub.conf
# chmod og-rwx /etc/grub.conf
Default Value:
OS Default: No
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.