1.1.9 Ensure nosuid 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 create setuid files in /var/tmp.

Solution

Edit the /etc/fstab file and add nosuid 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,nosuid /var/tmp

See Also

https://workbench.cisecurity.org/files/1857

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-6(10), CSCv6|3.1

Plugin: Unix

Control ID: 395157f2ab9dbf64755c3d8e28b6fb814512b25eada4ccb3d9d9ef575c5a9748