Information
The nodev mount option specifies that the filesystem cannot contain special devices.
Rationale:
Since the /var/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 /var/tmp.
Solution
Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /var/tmp partition. See the fstab(5) manual page for more information.
Run the following command to remount /var/tmp:
# mount -o remount,nodev /var/tmp
Item Details
Category: CONFIGURATION MANAGEMENT, SYSTEM AND SERVICES ACQUISITION
References: 800-53|CM-1, 800-53|CM-2, 800-53|CM-6, 800-53|CM-7, 800-53|CM-7(1), 800-53|CM-9, 800-53|SA-3, 800-53|SA-8, 800-53|SA-10, CSCv6|13, CSCv7|5.1
Control ID: e7067ec5c9720c3792afaa07b68795b56c4e4188bdd004f914406c87427f4b0e