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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-38583	RHEL-06-000067	SV-50384r4_rule		Medium

Description
Proper permissions ensure that only the root user can modify important boot parameters.

STIG	Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide	2017-05-19

Details

Check Text ( C-46141r5_chk )
To check the permissions of "/boot/grub/grub.conf", run the command: $ sudo ls -lL /boot/grub/grub.conf If the system uses UEFI check the permissions of “/boot/efi/EFI/redhat/grub.conf” file: $ sudo ls –lL /boot/efi/EFI/redhat/grub.conf If properly configured, the output should indicate the following permissions: "-rw-------" If it does not, this is a finding.

Fix Text (F-43531r3_fix)

File permissions for "/boot/grub/grub.conf" and “/boot/efi/EFI/redhat/grub.conf” should be set to 600, which is the default. To properly set the permissions of "/boot/grub/grub.conf", run the command: $ chmod 600 /boot/grub/grub.conf To properly set the permissions of “/boot/efi/EFI/redhat/grub.conf”, run the command: $ chmod 600 /boot/efi/EFI/redhat/grub.conf Boot partitions based on VFAT, NTFS, or other non-standard configurations may require alternative measures.