1.1.8.1 Ensure nodev option set on /dev/shm partition

Information

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

Since the /dev/shm filesystem is not intended to support devices, set this option to ensure that users cannot attempt to create special devices in /dev/shm partitions.

Solution

Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /dev/shm partition. See the fstab(5) manual page for more information.

Run the following command to remount /dev/shm using the updated options from /etc/fstab:

# mount -o remount /dev/shm

See Also

https://workbench.cisecurity.org/files/3796

Item Details

Category: ACCESS CONTROL, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|AC-5, 800-53|AC-6, 800-53|MP-2, CSCv7|14.6

Plugin: Unix

Control ID: d2a7f8386cd135ba26d8b5f3d39c3cb1df601d0703eb6f675eb060bcc883248e