[Full-disclosure] Astaro Security Gateway v8.1 - Input Validation Vulnerability

["research@xxxxxxxxxxxxxxxxxxxxx" <research@xxxxxxxxxxxxxxxxxxxxx>]

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


Date:
=====
2011-12-27


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


VL-ID:
=====
193


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


Report-Timeline:
================
2011-12-27:     Public or Non-Public Disclosure


Status:
========
Published


Affected Products:
==================
Astaro Security Gateway v8.1


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


Severity:
=========
Medium


Details:
========
A persistent cross site scripting vulnerability is detected on Astaro Security 
Gateway v8.101.
The vulnerability allows an privileged 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

Pictures:
                        ../1.png


Proof of Concept:
=================
The vulnerability can be exploited by remote attackers or privileged restricted 
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


Risk:
=====
The security risk of the persistent vulnerability is estimated as medium.


Credits:
========
Vulnerability Research Laboratory


Disclaimer:
===========
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 © 
2011|Vulnerability-Lab




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