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[Onapsis Security Advisory 2010-003] SAP WebDynpro Runtime XSS/CSS Injection
From: Onapsis Research Labs <research () onapsis com>
Date: Thu, 11 Feb 2010 12:15:15 -0200

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Onapsis Security Advisory 2010-003: SAP WebDynpro Runtime XSS/CSS Injection

This advisory can be downloaded from http://www.onapsis.com/research.html.
By downloading this advisory from the Onapsis Resource Center, you will
gain access to beforehand information on upcoming advisories, presentations
and new research projects from the Onapsis Research Labs.


1. Impact on Business
=====================

By exploiting this vulnerability, an internal or external attacker would
be able perform attacks on the Organization's users through weaknesses
in the
SAP system.

Upon a successful exploitation, he would be able to obtain sensitive
information from legitimate users through complex social engineering attacks
and/or exploit vulnerabilities in their systems in order to take control
of them.

- - Risk Level: Medium


2. Advisory Information
=======================

- - Release Date: 2010-02-10

- - Last Revised: 2010-02-10

- - Security Advisory ID: ONAPSIS-2010-003

- - Onapsis SVS ID: ONAPSIS-000004

- - Researcher: Mariano Nuñez Di Croce


3. Vulnerability Information
============================

- - Vendor: SAP

- - Affected Components:
        
        . SAP NetWeaver 2004 < SP21
        . SAP NetWeaver 2004s < SP13

- - Vulnerability Class: HTML Code Injection

- - Remotely Exploitable: Yes

- - Locally Exploitable: Yes

- - Authentication Required: No


4. Affected Components Description
==================================

Web Dynpro is a client-independent programming model of the SAP
NetWeaver technology platform for developing user interfaces for
professional business
applications. It is based on the Model View Controller (MVC) paradigm
which ensures that the business logic is separated from the presentation
logic.

The SAP Enterprise Portal and Web Dynpro for Java are the strategic user
interface technologies of SAP and are based on the SAP Web Application
Server
(WebAS) Java.


5. Vulnerability Details
========================

The WebDynpro Runtime suffers from a Cross-Site Scripting / CSS
Injection vulnerability, which may enable remote attacks to perform
different kind of
attacks over SAP users.

Onapsis is not distributing technical details about this issue to the
general public at this moment in order to provide enough time to affected
customers to patch their systems and protect against the exploitation of
the described vulnerability.


6. Solution
===========

SAP has released SAP Note 1424863, which provides a patched version of
the affected components.

This patch can be downloaded from
https://service.sap.com/sap/support/notes/1424863 .

Onapsis strongly recommends SAP customers to download the related
security fix and apply it to the affected components in order to reduce
business risks.


7. Report Timeline
==================

        . 2009-11-24: Onapsis provides vulnerability information to SAP.
        . 2009-11-24: SAP confirms reception of vulnerability submission.
        . 2010-02-09: SAP releases security patch.
        . 2010-02-10: Onapsis releases security advisory.


8. About Onapsis Research Labs
==============================

Onapsis is continuously investing resources in the research of the
security of business critical systems and applications.

With that objective in mind, a special unit ? the Onapsis Research Labs
? has been developed since the creation of the company. The experts involved
in this special team lead the public research trends in this matter,
having discovered and published many of the public security
vulnerabilities in
these platforms.

The outcome of this advanced and cutting-edge research is continuously
provided to the Onapsis Consulting and Development teams, improving the
quality
of our solutions and enabling our customers to be protected from the
latest risks to their critical business information.

Furthermore, the results of this research projects are usually shared
with the general security and professional community, encouraging the
sharing of
information and increasing the common knowledge in this field.


9. About Onapsis
================

Onapsis is the leading provider of solutions for the security of
business-critical systems and applications.

Through different innovative products and services, Onapsis helps its
global customers to effectively increase the security level of their core
business platforms, protecting their information and decreasing
financial fraud risks.

Onapsis is built upon a team of world-renowned experts in the SAP
security field, with several years of experience in the assessment and
protection of
critical platforms in world-wide customers, such as Fortune-500
companies and governmental entities.

Some of our featured services include SAP Penetration Testing, SAP
Gateway & RFC security, SAP Enterprise Portal security assessment,
Security Support
for SAP Implementations and Upgrades, SAP System Hardening and SAP
Technical Security Audits.

For further information about our solutions, please contact us at
info () onapsis com and visit our website at www.onapsis.com.





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