Details

Set nodev on removable media to prevent character and block special devices that are present on the removable media from being treated as device files. Removable media containing character and block special devices could be used to circumvent security controls by allowing non-root users to access sensitive device files such as /dev/kmem or the raw disk partitions.

Solution

Edit the /etc/fstab file and add ‘nodev’ to the fourth field (mounting options). Look for entries that have mount points that contain words such as floppy or cdrom. See the fstab(5) manual page for more information.

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/85

This control applies to the following type of system Unix.

References

• CSCv6|3.1

Source

• Tenable.com/audits