AlmaLinux OS 9 must mount /var/log/audit with the nodev option.
Overview
Finding ID
Version
Rule ID
IA Controls
Severity
V-269320
ALMA-09-027190
SV-269320r1050202_rule
Medium
Description
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.
Verify "/var/log/audit" is mounted with the "nodev" option:
$ mount | grep /var/log/audit
/dev/mapper/luks-29b74747-2f82-4472-82f5-0b5eb763effc on /var/log/audit type xfs (rw,nosuid,nodev,noexec,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
If the "/var/log/audit" file system is mounted without the "nodev" option, this is a finding.
Fix Text (F-73252r1048337_fix)
Modify "/etc/fstab" to use the "nodev" option on the "/var/log/audit" directory.