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RHEL-09-231145 RHEL 9 must mount /var/log with the nodev option.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

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

Title

RHEL 9 must mount /var/log with the nodev option.

Control

Verify "/var/log" is mounted with the "nodev" option: $ mount | grep /var/log /dev/mapper/rhel-var-log on /var/log type xfs (rw,nodev,nosuid,noexec,seclabel) If the "/var/log" file system is mounted without the "nodev" option, 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

Modify "/etc/fstab" to use the "nodev" option on the "/var/log" directory.