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← Back to Red Hat Enterprise Linux 9 Security Technical Implementation Guide

V-257870

CAT II (Medium)

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

Rule ID

SV-257870r958804_rule

STIG

Red Hat Enterprise Linux 9 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-001764

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.

Check Content

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.

Fix Text

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