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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgende Warnung des Microsoft Product Security
Notification Service. Wir geben diese Informationen unveraendert an Sie
weiter.

CVE-2011-1976 – Cross-site Scripting-Schwachstelle in Microsoft Report
Viewer Control

Im Microsoft Report Viewer Control werden bestimmte URL-Parameter nicht
ausreichend validiert. Ein entfernter Angreifer kann dies ausnutzen, um
durch einen praeparierten Link beliebigen Skript- oder HTML-Code im
Browser von Nutzern zur Ausfuehrung zu bringen, wenn diese dem Link
folgen (Cross-site Scripting).

Betroffen sind die folgenden Software Pakete und Plattformen:

Microsoft Visual Studio 2005 Service Pack 1
Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package

Windows

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
Matthias Braeck

– —
Matthias Braeck (Incident Response Team)

DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-590
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

Automatische Warnmeldungen: https://www.cert.dfn.de/autowarn

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AUSCERT External Security Bulletin Redistribution

ESB-2011.0822
Vulnerability in Microsoft Report Viewer Could Allow Information Disclosure
10 August 2011

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AusCERT Security Bulletin Summary
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Product: Microsoft Visual Studio 2005 Service Pack 1
Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package
Publisher: Microsoft
Operating System: Windows
Impact/Access: Access Confidential Data — Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2011-1976

Original Bulletin:
http://www.microsoft.com/technet/security/bulletin/MS11-067.mspx

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Microsoft Security Bulletin MS11-067 – Important
Vulnerability in Microsoft Report Viewer Could Allow Information Disclosure (2578230)
Published: August 09, 2011
Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in
Microsoft Report Viewer. The vulnerability could allow information
disclosure if a user views a specially crafted Web page. In all cases,
however, an attacker would have no way to force a user to visit the Web
site. Instead, an attacker would have to persuade a user to visit the
Web site, typically by getting them to click a link in an e-mail
message or Instant Messenger message that takes the user to the
vulnerable Web site.

This security update is rated Important for all supported editions of
Microsoft Visual Studio 2005 and Microsoft Report Viewer 2005
Redistributable Package. For more information, see the subsection,
Affected and Non-Affected Software, in this section.

Affected Software

Microsoft Visual Studio 2005 Service Pack 1
Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package

Vulnerability Information

Report Viewer Controls XSS Vulnerability – CVE-2011-1976

An information disclosure vulnerability exists in the way that the
Microsoft Report Viewer control improperly validates parameters within
a data source. An attacker who successfully exploited this
vulnerability could inject a client-side script in the user’s browser.
The script could then be used to spoof content or disclose sensitive
information. Note that this vulnerability would not allow an attacker
to execute code outside of the browser or to elevate their user rights
directly, but it could be used to produce information that could be
used to try to further compromise the affected system.

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You have received this e-mail bulletin as a result of your organisation’s
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation’s
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author’s website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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