Title

RHEL 9 must mount /var/log with the nodev option. (Cat II impact)

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.

Additional Identifiers

Rule ID: SV-257870r925597_rule

Vulnerability ID: V-257870

Group Title: SRG-OS-000368-GPOS-00154

Expert Comments

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