1.1.20 Ensure noexec option set on removable media partitions

Information

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

Rationale:

Setting this option on a file system prevents users from executing programs from the
removable media. This deters users from being able to introduce potentially malicious
software on the system.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Edit the /etc/fstab file and add noexec to the fourth field (mounting options) of all
removable media partitions. Look for entries that have mount points that contain words
such as floppy or cdrom. See the fstab(5) manual page for more information.

See Also

https://workbench.cisecurity.org/files/2420