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WebTitan Appliance 3.50.x Script Insertion

WebTitan Appliance 3.50.x Script Insertion
Posted Jan 16, 2012
Authored by Benjamin Kunz Mejri, Vulnerability Laboratory | Site vulnerability-lab.com

WebTitan Appliance version 3.50.x suffers from multiple input validation vulnerabilities that allow for malicious script insertion and cross site scripting attacks.

tags | exploit, vulnerability, xss
SHA-256 | fc36f088e6865e73ce812efc72a79fc291f9849945bb64c34b54e2f5d12ad892

WebTitan Appliance 3.50.x Script Insertion

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WebTitan Appliance v3.50.x - Multiple Web Vulnerabilities




WebTitan is a complete internet monitoring software (web filter) which provides organisations protection for their data from malware
and other internet threats such as viruses, spyware and phishing as well as providing user policy browsing tools to ensure corporate
internet policy is adhered to.
Feature Set

* Includes proxy server and cache
* URL Filtering – 53 predefined categories, customizable category creation
* Granular policy engine based on users and groups
* Content control
* Application controls
* Includes Anti-virus Protection
* Simple download and installation process
* Plug and Play solution
* Highly Effective web filtering capabilities
* ISO and VMware® options
* Easy to set up - Up and running in 30 minutes
* Web based administrative GUI
* Multiple automated reports for entire user activity
* Automated updating including URL filters, anti-virus, version releases and system backup
* LDAP integration

(Copy of the Vendor Website: http://www.webtitan.com/products)

Vulnerability Lab Team discovered multiple persistent Input Validation vulnerabilities on the WebTitan Appliance.

2011-09-17: Vendor Notification
2012-01-14: Public or Non-Public Disclosure


Affected Products:
Copperfasten Technologies
Product: WebTitan Appliance Application v3.50.x



Multiple persistent input validation vulnerabilities are detected on the Webtitans Application 3.50x.
The vulnerability allows privileged user accounts to inject malicious persistent script code to manipulate application requests.
Successful exploitation can result in session hijacking, account steal, persistent exploitation & persistent context manipulation.

Vulnerable Module(s):
[+] NTP Server (Display)
[+] Extensions / Execute Files
[+] Setup Time
[+] Categories Add/Edit
[+] Add URL


Proof of Concept:
The vulnerabilities can be exploited by remote attackers or local low privileged user accounts.
For demonstration or reproduce ...

Code Review: NTP Servers

<tbody><tr> <td colspan="4" align="center" bgcolor="#a8a8a8"> </td> </tr><tr class="even" id="ntpservers_row_1">
<td width="1%" nowrap="nowrap">1</td><td align="left" width="100%" nowrap="nowrap">pool.ntp.org</td><td class="action"
nowrap="nowrap"><img class="imgbutton" alt="Delete" title="Delete" src="imgs/delete.png" onclick="nList.updateList('ntpservers',
0, '1', 'pool.ntp.org');"></td></tr><tr classname="even" class="even" id="ntpservers_row_2"><td width="1%">2</td>
<td>>"<INCLUDE PERSISTENT SCRIPTCODE HERE!></iframe> </td><td classname="action" class="action"><img onclick="simpleList.prototype.
updateList('ntpservers', 0, '2');" src="imgs/delete.png" title="Delete" alt="Delete" class="imgbutton"></td></tr></tbody>

Code Review: Categories - URL

<tbody><tr id="row_name"><td class="dialogLabel">Category name:</td>
<td> <input classname="" class="" name="name" id="name" style="width: 300px;" value="" type="text"> </td>
</tr><tr id="row_description"><td class="dialogLabel">Description:</td>
<td> <input classname="" class="" name="description" id="description" style="width: 300px;" value="" type="text"> </td>
</tr><tr id="row_urls"><td class="dialogLabel" valign="top">URLs:</td> <td valign="top">
<table bgcolor="#e8e8e8" cellpadding="0">
<td> <input classname="" class="" name="urls_entry" style="width: 215px;" id="urls_entry" type="text"> </td>
<td> <input class="button" name="urls_button" value="Add" onclick="urlList.updateList('urls', 1, 'Invalid URL');"
style="width: 85px;" id="urls_button" type="button">
<td colspan="2" style="width: 300px;">
<table class="slist" id="urls_table">
<tbody><tr> <td colspan="4" align="center" bgcolor="#a8a8a8"> </td> </tr>
<tr classname="even" class="even" id="urls_row_1"><td width="1%">1</td><td>>"<INCLUDE PERSISTENT SCRIPTCODE HERE!></td><td
classname="action" class="action"><img onclick="simpleList.prototype.updateList('urls', 0, '1');" src="imgs/delete.png" title="
Delete" alt="Delete" class="imgbutton"></td></tr></tbody></table></td></tr>
<tr id="row_sl1"><td colspan="3"><hr></td></tr><tr style="display: none;" class="error" id="row_categoryErr">
<td colspan="3" class="error"><span id="categoryErr_Msg">test<span></span></span></td></tr></tbody>

Code Review: Extension

<tr class="odd" id="exeext_row_4">
<td width="1%" nowrap="nowrap">4</td>

<td align="left" width="100%" nowrap="nowrap">scr</td><td class="action" nowrap="nowrap"><img class="imgbutton"
alt="Delete" title="Delete" src="imgs/delete.png" onclick="exeext.updateList('exeext', 0, '4', 'scr');"></td>
</tr> <tr classname="even" class="even" id="exeext_row_5"><td width="1%">5</td>
<td>>"<INCLUDE PERSISTENT SCRIPTCODE HERE!></td><td classname="action" class="action"><img onclick="simpleList.
prototype.updateList('exeext', 0, '5');" src="imgs/delete.png" title="Delete" alt="Delete" class="imgbutton"></td></tr></tbody>

The security risk of the persistent vulnerabilities are estimated as high(-).

Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)

The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation
may not apply. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of
other media, are reserved by Vulnerability-Lab or its suppliers.

Copyright © 2012|Vulnerability-Lab

Website: www.vulnerability-lab.com ; vuln-lab.com or vuln-db.com
Contact: admin@vulnerability-lab.com or support@vulnerability-lab.com

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