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1.1.13 Ensure /var/tmp partition includes the nodev option

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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

For existing /var/tmp partitions, edit the /etc/fstab file and add nodev to the fourth field (mounting options) of the /var/tmp entry. See the fstab(5) manual page for more information.
Run the following command to remount /var/tmp:

# mount -o remount,nodev /var/tmp

See Also

https://workbench.cisecurity.org/files/3397

Item Details

References: CSCv7|5.1

Plugin: Unix

Control ID: f364bccee808caa250c3335842497a0609e8c87a0a82a64d3db1ce690cfcf3ef