Groundhog Day: Boot2Root !
Initial footstep is a bit flowed, but really not difficult.
After getting access to Funbox: CTF, its nessesarry to find, read and understand the (2 and easy to find) hints.
Be smart and combine...
Hints: Nikto scans "case sensitive" and you need a minimum of 15 mins to get user !
If you need hints, call me on twitter: @0815R2d2
This works better with VirtualBox rather than VMware