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V-230301

CAT II (Medium)

RHEL 8 must prevent special devices on non-root local partitions.

Rule ID

SV-230301r1184262_rule

STIG

Red Hat Enterprise Linux 8 Security Technical Implementation Guide

Version

V2R7

CCIs

CCI-000366

Discussion

The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access. The only legitimate location for device files is the /dev directory located on the root partition.

Check Content

Verify all nonroot local partitions are mounted with the "nodev" option with the following command:

$ sudo mount | grep '^/dev\S* on /\S' | grep --invert-match 'nodev'

If any output is produced, this is a finding.

Fix Text

Configure the "/etc/fstab" to use the "nodev" option on all non-root local partitions.