Details

Set nosuid on removable media to prevent setuid and setgid executable files that are on

that media from being executed as setuid and setgid.

*Rationale*

Setting this option on a file system prevents users from introducing privileged programs

onto the system and allowing non-root users to execute them.

Solution

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

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/91

This control applies to the following type of system Unix.

References

• CSCv6|3.1

Source

• Tenable.com/audits