Details

The nodev mount option specifies that the filesystem cannot contain special devices.

*Rationale*

Since the /tmp filesystem is not intended to support devices, set this option to ensure that

users cannot attempt to create block or character special devices in /tmp.

Solution

Edit the /etc/fstab file and add nodev to the fourth field (mounting options). See the
fstab(5) manual page for more information.# mount -o remount,nodev /tmp

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/91

This control applies to the following type of system Unix.

References

• CSCv6|3.1

Source

• Tenable.com/audits