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V-281232

CAT II (Medium)

RHEL 10 must mount "/boot" with the "nodev" option.

Rule ID

SV-281232r1166648_rule

STIG

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Version

V1R1

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 RHEL 10 is configured so 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,nosuid,relatime,seclabel,attr2)

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

Fix Text

Configure RHEL 10 to mount "/boot" with the "nodev" option.

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

To reload all implicit mount units and update the dependency graph so that new options will apply correctly at next remount, run the following command:

$ sudo systemctl daemon-reload

Use the following command to apply the changes immediately without a reboot:

$ sudo mount -o remount /boot