Astaro Gateway v8.1 - Input Validation Vulnerability

Document Title:
===============
Astaro Gateway v8.1 - Input Validation Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=193


Release Date:
=============
2011-12-26


Vulnerability Laboratory ID (VL-ID):
====================================
193


Common Vulnerability Scoring System:
====================================
3.5


Product & Service Introduction:
===============================
Das Astaro Security Gateway 8.101 wurde speziell für den Schutz großer Unternehmen konzipiert. 
Basierend auf hochwertigen Intel-kompatiblen Serversystemen, einschließlich Dual IntelTM Xeon-Multi-Core-Prozessoren 
sowie redundanten Highspeed-Festplatten, bietet es selbst für die herausforderndsten Umgebungen optimale Performance 
und Zuverlässigkeit. Dieser Abschnitt beschreibt detailliert die verfügbaren Sicherheitsanwendungen, technischen 
Einzelheiten und Einsatzszenarien.

(Copy of the Vendor Homepage: https://www.astaro.com/de-de/produkte/hardware-appliance/astaro-security-gateway-625)


Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered a persistent Cross Site Scripting issue on Astaro Security Gateway.


Vulnerability Disclosure Timeline:
==================================
2011-06-13:	Vendor Notification
2011-06-15:	Vendor Response/Feedback
2011-12-27:	Public or Non-Public Disclosure
2012-01-11:	Vendor Fix/Patch


Discovery Status:
=================
Published


Affected Product(s):
====================
Sophos
Product: Astaro Security Gateway 8.101


Exploitation Technique:
=======================
Local


Severity Level:
===============
Low


Technical Details & Description:
================================
A persistent cross site scripting vulnerability is detected on Astaro Security Gateway v8.101.
The vulnerability allows a local privileged interface user account to implement malicious persistent script code.
The bug is located in the preview function of the certificate delete popup box.

Vulnerable Module(s):
				[+] Certificate - Delete Preview Popup Box

Picture(s):
			../1.png


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers with high required user inter action or local high privileged user accounts.
For demonstration or reproduce ...

Site-2-Site VPN - Certificate Management Preview

<div style="left: 300px; top: 220px; z-index: 2000; visibility: visible;" class="iPopUp" id="iPopup_2"><div 
class="iPopUpTitle">Please confirm:</div><div class="iPopUpText"><p>&#8203;&#8203;&#8203;&#8203;&#8203;Are you sure that you want to delete the X509 certificate 
with private key object '>"<INCLUDED PERSISTENT SCRIPTCODE HERE!!!">'?</p></iframe></p></div><table border="0" 
cellpadding="0" cellspacing="0"><tbody><tr><td style="padding: 2px;"><div id="btnDefault_iPopup_2" class="button" style="width: 
auto; cursor: pointer; color: black; font-weight: bold;"><div class="button_left"></div><div class="button_center" style="width: 
auto;"><span style="font-weight: normal;">OK</span></div><div class="button_right"></div></div></td>&#8203;&#8203;&#8203;&#8203;&#8203;<td style="padding: 
2px;"><div class="button" style="width: auto; cursor: pointer; color: black;"><div class="button_left"></div><div 
class="button_center" style="width: auto;"><span style="font-weight: normal;">Cancel</span></div><div 
class="button_right"></div></div></td></tr></tbody></table></div>

	../index.dat


Solution - Fix & Patch:
=======================
Update to Application Version 8.301 - Astaro
Provided Information by Mr. Markus Hennig ([email protected])  [2012-01-10]
Reference: FULL DISCLOSURE MAILINGLIST  &  SECUNIA


Security Risk:
==============
The security risk of the persistent cross site scripting vulnerability is estimated as medium(-).


Credits & Authors:
==================
Vulnerability Research Laboratory - N/A  Anonymous


Disclaimer & Information:
=========================
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. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases 
or trade with fraud/stolen material.

Domains:    www.vulnerability-lab.com   	- www.vuln-lab.com			       - www.vulnerability-lab.com/register
Contact:    [email protected] 	- [email protected] 	       - [email protected]
Section:    video.vulnerability-lab.com 	- forum.vulnerability-lab.com 		       - news.vulnerability-lab.com
Social:	    twitter.com/#!/vuln_lab 		- facebook.com/VulnerabilityLab 	       - youtube.com/user/vulnerability0lab
Feeds:	    vulnerability-lab.com/rss/rss.php	- vulnerability-lab.com/rss/rss_upcoming.php   - vulnerability-lab.com/rss/rss_news.php

Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. 
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 Research Team or its suppliers. All pictures, texts, advisories, sourcecode, videos and 
other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed), 
modify, use or edit our material contact ([email protected] or [email protected]) to get a permission.

    				   	Copyright © 2012 | Vulnerability Laboratory