1.1.9 Ensure noexec option set on /var/tmp partition


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,noexec /var/tmp

See Also