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RHEL-10-700200 RHEL 10 must prevent special devices on nonroot local partitions.

DISA STIG library V1R3
All changes in this version
first version loaded CAT II

Maps to CM-7(2) via CCI-001764

Title

RHEL 10 must prevent special devices on nonroot local partitions.

Control

Verify RHEL 10 is configured so that 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.

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, with the exception of chroot jails if implemented.

Related controls

CCI-001764

Fix

Configure RHEL 10 so that "/etc/fstab" uses the "nodev" option on all nonroot local partitions.