-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                    ESB-2008.0007 -- [Win][UNIX/Linux]
    Vulnerabilities in some SWF files could allow cross-site scripting
                              4 January 2008

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Adobe Dreamweaver CS3
                      Adobe Acrobat Connect
Publisher:            Adobe
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact:               Cross-site Scripting
Access:               Remote/Unauthenticated

Original Bulletin:
  http://www.adobe.com/support/security/advisories/apsa07-06.html

- --------------------------BEGIN INCLUDED TEXT--------------------

Adobe Security Advisory APSA07-06
Vulnerabilities in some SWF files could allow cross-site scripting

Release date: December 23, 2007

Vulnerability identifier: APSA07-06

Summary
- ------------------------------------------------------------------------------
Adobe is aware of the content related to potential cross-site scripting (XSS)
vulnerabilities in SWF files as described in an upcoming book discussing
methods malicious attackers can use to take advantage of inadequately coded
SWF files. According to the book, several applications that can be used to
create SWF content are currently deployed with pre-generated SWF files,
which may contain XSS vulnerabilities. The Adobe applications described
include Adobe Dreamweaver CS3 and Adobe Acrobat Connect.

XSS vulnerabilities are exploited when attackers lure users into clicking
malicious links sent via email or on a Web page. If a customer is logged into
an account on a Web site, and then clicks on a malicious SWF link, the
attacker could gain access to the customer's session by appending script to
the link.

An update to Flash Player in early 2008 will be made available to protect
users from the potential XSS vulnerability as described above.

Preventative Measures for Developers and Website Owners
- ------------------------------------------------------------------------------
The update to Flash Player coming out in early 2008 will address the XSS
issues in SWFs. Prior to this Adobe will be releasing an update for
pre-generated SWF files in Adobe software that includes XSS prevention in
January 2008. In addition, Adobe strongly recommends Flash content creators
utilize the data validation libraries found here:
http://code.google.com/p/flash-validators/ to help prevent XSS vulnerabilities
in their own custom SWFs, as well as follow the guidelines of the Adobe
whitepaper Creating More Secure SWF Web Applications.

Preventative Measures for End-Users
- ------------------------------------------------------------------------------
The latest Adobe Flash Player update, as described in the 12/18 Adobe Security
Bulletin offers a solution for one of the issues outlined in the book, related
to the unsupported asfunction protocol. Adobe recommends end users update to
the latest release of Flash Player as described in the bulletin. The update
being released in early 2008 will mitigate the issue further.

A security bulletin will be published on http://www.adobe.com/support/security
as soon as the product updates are available.

All documented security vulnerabilities and their solutions are distributed
through the Adobe security notification service. You can sign up for the
service at the following URL:
http://www.adobe.com/cfusion/entitlement/index.cfm?e=szalert

Severity Rating
- ------------------------------------------------------------------------------
Adobe categorizes this as an important issue and recommends that developers
review the security resources available on Adobe Developer Connection
http://www.adobe.com/devnet/flashplayer/security.html, and as always, that
users exercise caution when receiving unsolicited e-mail communications
requesting user action or clicking Web links.

- --------------------------END INCLUDED TEXT--------------------

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

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
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.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBR325DSh9+71yA2DNAQLTMwP+JELO01H/UfCim/Jx0EOTJKdHAiTe7rIs
qV6TF8WIFORh+KR79RHN2U2fOKIMg6XXfk1Oqh+Dgw23FJPRNi3YqnMUQLCwYg9z
cMP4UvLzcGSWGQXDbJIt4Ir27FX/n71mlipRQONy3bYkxvj/KX29xZoEpgDv8WlY
y813Skfs4jk=
=Vkzu
-----END PGP SIGNATURE-----