Details

The nodev mount option specifies that the filesystem cannot contain special devices. 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) for the /tmp partition. See the fstab(5) manual page for more information. Run the following command to remount /tmp: # mount -o remount,nodev /tmp

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/1866

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.

References

• 800-53|AC-6(10)

Source

• Tenable.com/audits