cis-ubuntu1604-v200-1-1-18

name	cis-ubuntu1604-v200-1-1-18
description	Ensure /home partition includes the nodev option
category	cis-storage
version	2.0.0
author	cyberstrike-official
tags	["cis","ubuntu","linux","ubuntu-16.04","filesystem","home","nodev","mount-option"]
cis_id	1.1.18
cis_benchmark	CIS Ubuntu Linux 16.04 LTS Benchmark v2.0.0
tech_stack	["ubuntu","linux"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

Ensure /home partition includes the nodev option

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.

Impact

None noted.

Audit Procedure

Command Line

# If a /home partition exists, verify that the nodev option is set.
# Run the following command and verify that nothing is returned:
findmnt -n /home | grep -v nodev

Expected Result

No output should be returned.

Remediation

Command Line

# 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

Default Value

Not set by default.

References

• CIS Controls Version 7 - 5.1 Establish Secure Configurations: Maintain documented, standard security configuration standards for all authorized operating systems and software.

Profile

Level 1 - Server / Level 1 - Workstation, Assessment: Automated