1.205 ALMA-09-026090

Information

AlmaLinux OS 9 must prevent device files from being interpreted on file systems that contain user home directories.

GROUP ID: V-269310
RULE ID: SV-269310r1050192

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.

Solution

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

See Also

https://workbench.cisecurity.org/benchmarks/27039