Hello and welcome to the solution of the 7th basic mission of HTS, this one is fairly easy if you have already used Linux (which I highly recommend over windows or mac), since the key to achieve this mission relays on your knowledge of basic UNIX commands and also on combining commands.

Now back to our mission, in this one, network security Sam practices security through the ignorance of hackers. as for protecting his password, he has hidden it in a script with an obscure file name, but in “unrelated” news he has made a script that returns the output of the Linux command “cal“, and what this command does, is that it displays a simple calendar. This is where combining commands comes in handy.

Indeed, by appending the combining command “&&” and the UNIX command “ls” we can do a full listing of the current directory, this is the output that I got (after entering “&& ls”):

        August 2008
Mon Tue Wed Thu Fri Sat Sun
                  1   2   3
  4   5   6   7   8   9  10
 11  12  13  14  15  16  17
 18  19  20  21  22  23  24
 25  26  27  28  29  30  31

.
..

level7.php
cal.pl
.htaccess
k1kh31b1n55h.php
index.php

Got it! the file that contains our password is “k1kh31b1n55h.php” now we must view it’s content, once done, just enter the password and you’ll have access to the 8th mission of HTS.