Vulnerability Discussion
The "nodev" mount option causes the system not to interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Check
Verify that file systems used for removable media are mounted with the "nodev" option with the following command:
$ sudo more /etc/fstab
UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0
If a file system found in "/etc/fstab" refers to removable media and it does not have the "nodev" option set, this is a finding.
Fix
Configure the "/etc/fstab" to use the "nodev" option on file systems that are associated with removable media.