1.1.14 Ensure /var/tmp partition includes the noexec option

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The noexec mount option specifies that the filesystem cannot contain executable binaries.


Since the /var/tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /var/tmp .


Edit the /etc/fstab file and add noexec 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,nosuid,nodev,noexec /var/tmp

See Also