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


Finding ID Version Rule ID IA Controls Severity
V-230301 RHEL-08-010580 SV-230301r627750_rule Medium
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 unprivileged users to attain unauthorized administrative access. The only legitimate location for device files is the /dev directory located on the root partition.
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 2022-06-15


Check Text ( C-32970r567649_chk )
Verify all non-root 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 (F-32945r567650_fix)
Configure the "/etc/fstab" to use the "nodev" option on all non-root local partitions.