1.1.10 Ensure noexec option set on /var/tmp partition

Information

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.

Solution

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

https://workbench.cisecurity.org/files/1863

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-6(10), CSCv6|2

Plugin: Unix

Control ID: 80e2b158c9eeb227287dca3dc33c5e1652f1192e67002e7d9ae36c920b701691