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V-257860

CAT II (Medium)

RHEL 9 must mount /boot with the nodev option.

Rule ID

SV-257860r1044940_rule

STIG

Red Hat Enterprise Linux 9 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-001764

Discussion

The only legitimate location for device files is the "/dev" directory located on the root partition. The only exception to this is chroot jails.

Check Content

Verify that the "/boot" mount point has the "nodev" option with the following command:

$ mount | grep '\s/boot\s'

/dev/sda1 on /boot type xfs (rw,nodev,relatime,seclabel,attr2)

If the "/boot" file system does not have the "nodev" option set, this is a finding.

Fix Text

Modify "/etc/fstab" to use the "nodev" option on the "/boot" directory.