sat0ri RCE challenge/crackme – ten

Posted: 9th August 2011 by sharpe in Challenges
Tags: , ,

OK, here we are again with a new series of challenges, which will start with number 10. This one isn’t that difficult but it requires that you consider new options. I left half of this challenge easy to help you along, so you can solve this one two ways, the tough way and the easier way. Here’s a tip: read all the code, there isn’t much.

Here are the guidelines:

  • Find the number of Nerf darts
  • Find the hash (it’s a number)
  • Generate the valid MD5 like so: MD5(<number of darts>:<valid hash>)
  • Enter the MD5 and press the “Unlock” button to decrypt the code
  • Press the “Go” button to see if you got it right.
  • Verify your hash here: http://blog.sat0ri.com/challenges/ten/verify.php?hash=<your hash value>

OR

  • Decrypt the code (you’re such a brute!)
  • Verify your hash here: http://blog.sat0ri.com/challenges/ten/verify.php?hash=<your hash value>
  • Post feedback and questions in this challenge’s forum

A screen dump of this challenge:

 

It can be downloaded here: Sat0ri RCE challenge/crackme - ten (302).
MD5 (ten.zip) = c88761b22d92d9a689bf6888cab6cf05

Regards,
sharpe.

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