1.1.5 Ensure noexec option set on /tmp partition

Information

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

Solution

Edit the /etc/fstab file and add noexec to the fourth field (mounting options) for the
/tmp partition. See the fstab(5) manual page for more information. Run the following command to remount /tmp - # mount -o remount,noexec /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: 66ced6d9b1d00afe6b2f047bb4bec8a5a2c8820b215dffead19603395f31ad1a