RHEL 9 /boot/grub2/grub.cfg file must be owned by root.

Documentable No

Rule ID SV-257791r991589_rule

CCI References

CCI-000366

Discussion

The " /boot/grub2/grub.cfg" file stores sensitive system configuration. Protection of this file is critical for system security.

Check Procedure

Verify the ownership of the "/boot/grub2/grub.cfg" file with the following command:

$ sudo stat -c "%U %n" /boot/grub2/grub.cfg 

root /boot/grub2/grub.cfg 

If "/boot/grub2/grub.cfg" file does not have an owner of "root", this is a finding.

Fix Action

Change the owner of the file /boot/grub2/grub.cfg to root by running the following command:

$ sudo chown root /boot/grub2/grub.cfg