Hacking the Gracker


gracker.org is a hacking game with a progressive difficulty curve that aims to teach others about vulnerability exploitation.

Upon visiting the site, you’ll be presented with the text

The Journey Begins

The site doesn’t do much else so the first thing to do is take a peek into the source:

<!doctype html>
<html>
    <head></head>
    <body>
        <h1>the journey begins...</h1>
        <?php echo "asd"; ?>
        <!--
        `ssh [email protected]`
        password: level0
        -->
    </body>
</html>

Here you can see instructions to ssh into the server to properly start the game. Once logged in, you’ll be presented with some instructions and rules. I will be documenting my solutions in a future series of posts.