1.1.15 Ensure nodev option set on /dev/shm partition

Information

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

Rationale:

Since the /run/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/fstabfile 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:

# mount -o remount,nodev /dev/shm

See Also

https://workbench.cisecurity.org/files/2619

Item Details

Category: CONFIGURATION MANAGEMENT

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

Plugin: Unix

Control ID: 30112992b757108d26d008e48d2df2fd9062a7f996a46abce11db379d487961a