Table of Contents

1.1.14 Ensure nodev option set on /home partition (Scored)

Profile Applicability

Level 1 - Server 
Level 1 - Workstation

Description

The nodev mount option specifies that the filesystem cannot contain special devices.

Rationale

Since the user partitions are not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices.

Audit

If a /home partition exists run the following command and verify that the nodev option is set on /home.

# mount | grep /home 
/dev/xvdf1 on /home type ext4 (rw,nodev,relatime,data=ordered)

Remediation

Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /home partition. See the fstab(5) manual page for more information.

# mount -o remount,nodev /home

Notes

The actions in this recommendation refer to the /home partition, which is the default user partition that is defined. If you have created other user partitions, it is recommended that the Remediation and Audit steps be applied to these partitions as well.