full-disclosure - ActiveWeb Contentserver CMS Multiple Cross Site Scriptings

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Date: Fri, 13 Jul 2007 09:52:46 +0200
From: RedTeam Pentesting GmbH <release@...team-pentesting.de>
To: full-disclosure@...ts.grok.org.uk
Subject: ActiveWeb Contentserver CMS Multiple Cross Site
	Scriptings

Advisory: ActiveWeb Contentserver CMS Multiple Cross Site Scriptings 

RedTeam Pentesting discovered three Cross Site Scripting
vulnerabilities in the activeWeb contentserver CMS during a penetration
test. One of the Cross Site Scriptings is persistent.

Details
=======

Product: activeWeb contentserver
Affected Versions: <= 5.6.2929
Fixed Versions: 5.6.2964
Vulnerability Type: Cross Site Scripting
Security-Risk: high
Vendor-URL: http://www.active-web.de/aw/home/Produkte/~gf/contentserver/
Vendor-Status: informed, fixed version released
Advisory-URL: http://www.redteam-pentesting.de/advisories/rt-sa-2007-005.php
Advisory-Status: public
CVE: CVE-2007-3014
CVE-URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3014

Introduction
============

contentserver is the comprehensive, scalable Content Management System
for professional requirements. It combines editorial system, website
management and development platform for web applications in one package.

(translation of the description on the vendor's homepage)

XSS Error Page rights.asp
=========================

The variable "msg" of the ASP script "rights.asp" is not properly
filtered.

Proof of Concept
----------------

http://www.example.com/errors/rights.asp
  ?awReadAccessRight=True
  &msg=<script>alert('XSS')</script>

XSS Error Page transaction.asp
==============================

The variable "msg" of the ASP script "transaction.asp" is not properly
filtered.

Proof of Concept
----------------

http://www.example.com/errors/transaction.asp
  ?msg=<script>alert('XSS')</script>

Persistent XSS Mimetypes
========================

As editors, users can add new mimetypes to the the system. The name of
the new mimetype can contain arbitrary code. This allows for a
persistent Cross Site Scripting.

Proof of Concept
----------------

As an editor, log into the management interface and add a new mimetype.
For the name, use a script, e.g.

<script>alert('XSS')</script>

Everytime a user looks at the mimetypes, the code will be executed.

Workaround
==========

A possible workaround would be to use a filtering application set up in
front of the real webserver, mitigating the risk of being exploited.

Fix
===

The vulnerability is fixed in release 5.6.2964.

Security Risk
=============

The risk is high, as these XSS can be used e.g. to steal session cookies
of logged-in users.

History
=======

2007-05-23 Problem found during a penetration test
2007-05-30 Vendor notified by customer
2007-06-01 Vendor called back and confirmed the vulnerability
2007-06-18 CVE number assigned
2007-07-11 Vendor released fixed version
2007-07-13 Advisory released

The vendor was very cooperative. There was always a competent contact
person available who answered any questions.

RedTeam Pentesting GmbH
=======================

RedTeam Pentesting is offering individual penetration tests, short
pentests, performed by a team of specialised IT-security experts.
Hereby, security weaknesses in company networks or products are
uncovered and can be fixed immediately.

As there are only few experts in this field, RedTeam Pentesting wants to
share its knowledge and enhance the public knowledge with research in
security related areas. The results are made available as public
security advisories.

More information about RedTeam Pentesting can be found at
http://www.redteam-pentesting.de.

-- 
RedTeam Pentesting GmbH                    Tel.: +49 241 963-1300
Dennewartstr. 25-27                        Fax : +49 241 963-1304
52068 Aachen                    http://www.redteam-pentesting.de/
Germany                         Registergericht: Aachen HRB 14004
Geschäftsführer: Patrick Hof, Jens Liebchen, Claus R. F. Overbeck

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