1.1.3 Ensure nodev option set on /tmp partition

Information

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) 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

See Also

https://workbench.cisecurity.org/files/3148

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CSCv6|3.1, CSCv7|5.1

Plugin: Unix

Control ID: c1aa714616cecbbc1f10a619d2e7b176d839d733be1267a804c8b6aab7291ff7