AlmaLinux OS 9 must mount /var/tmp with the nodev option.
Overview
Finding ID
Version
Rule ID
IA Controls
Severity
V-269327
ALMA-09-027960
SV-269327r1050209_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/tmp" is mounted with the "nodev" option:
$ mount | grep /var/tmp
/dev/mapper/luks-0e7206e7-bfb1-4a23-ae14-b9cea7cf76d5 on /var/tmp type xfs (rw,nosuid,nodev,noexec,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
If the "/var/tmp" file system is mounted without the "nodev" option, this is a finding.
Fix Text (F-73259r1048358_fix)
Modify "/etc/fstab" to use the "nodev" option on the "/var/tmp" directory.