Hack This Site: Basic Mission 9

Click here: LEVEL 9

I remember that here I write SPOILERS!
I RECOMMEND to win the level alone, using also Google for Theory of arguments

"The password is again hidden in an unknown file. However, the script that was previously used to find it has some limitations. 

Requirements: Knowledge of SSI, UNIX directory structure."

Back in the previous mission, we know that the file that is supposed to containt our name is stored in this directory "/var/www/hackthissite.org/html/missions/basic/8/tmp/" and we got the directory listing of "/var/www/hackthissite.org/html/missions/basic/8/" with this command:

<!--#exec cmd="ls .."--> 

where the two dots mean: one level up.

What we need to do is to climb another level up (/var/www/hackthissite.org/html/missions/basic/) and list the content of the folder named "9" (/var/www/hackthissite.org/html/missions/basic/9/) 

where the file containing the password is, the SSI command will be

"<!--#exec cmd="ls ../../9/"-->"

once you submit this in the form of Level 8, you will get the name of the file containing the password. Once done, append it to this address "http://www.hackthissite.org/html/missions/basic/9/", and you will have:

https://www.hackthissite.org/missions/basic/9/p91e283zc3.php

===============> HTS: Basic Mission 10