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AUSCERT External Security Bulletin Redistribution
ESB-2008.0631 -- [Win][UNIX/Linux][OSX]
Update to Flex 3 to address potential cross-site scripting vulnerability
19 June 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Flex 3.0.1 SDK
Flex Builder 3
Publisher: Adobe
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact: Cross-site Scripting
Access: Remote/Unauthenticated
CVE Names: CVE-2008-2640
Original Bulletin:
http://www.adobe.com/support/security/bulletins/apsb08-14.html
Comment: Please note that this also affects applications that have been built
using Flex.
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Update to Flex 3 to address potential cross-site scripting vulnerability
Release date: June 17, 2008
Vulnerability identifier: APSB08-14
CVE number: CVE-2008-2640
Platform: All Platforms
Affected software versions: Flex 3.0.1 SDK, Flex Builder 3
Summary
A potential cross-site scripting vulnerability has been identified in code used
by the Flex 3 History Management feature. It is recommended that developers who
have History Management enabled in applications developed with Flex 3 update
their deployed applications and development environments with the instructions
provided below.
Solution
Adobe recommends all Flex 3 developers who have enabled History Management
update applications created with Flex 3 and their Flex 3 product installations
with the following instructions:
Flex 3 users (both Flex 3 SDK and Flex Builder 3) should update their product
installations with the Flex 3.0.2 SDK update.
Flex 3 users who have enabled History Management in their currently deployed
Flex 3 web applications should update all instances of the historyFrame.html
file with the updated file. The three instances of historyFrame.html in the
Flex 3 SDK installation can be found in the following locations:
{install root}/templates/client-side-detection-with-history/history/historyFrame.html
{install root}/templates/express-installation-with-history/history/historyFrame.html
{install root}/templates/no-player-detection-with-history/history/historyFrame.html
Severity rating
Adobe categorizes this as an important update and recommends affected users
update their software installations and websites, if necessary.
Details
Input validation errors have been identified in code used by Flex 3 History
Management which could lead to potential cross-site scripting attacks. Only
customers who have used or plan to use the History Manager in Flex 3 may be
vulnerable. The Flex 2 History Manager is not vulnerable to this issue. The
relevant files that require an update are all of the instances of
historyFrame.html. For existing applications using the Flex 3 History Manager,
developers and/or site administrators are encouraged to update site assets
with the updated file by following the instructions above. This vulnerability
is remotely exploitable. Adobe recommends that users who have utilized the
Flex 3 History Manager update the applications created with Flex 3 software
as well as their Flex 3 product installations with the instructions provided
above.
Acknowledgments
Adobe would like to thank Ory Segal, Adi Sharabani and Ayal Yogev from IBM
Rational Application Security for reporting this vulnerability and for working
with us to help protect our customers' security.
Adobe Disclaimer
License agreement
By using software of Adobe Systems Incorporated or its subsidiaries ("Adobe");
you agree to the following terms and conditions. If you do not agree with such
terms and conditions; do not use the software. The terms of an end user license
agreement accompanying a particular software file upon installation or download
of the software shall supersede the terms presented below.
The export and re-export of Adobe software products are controlled by the
United States Export Administration Regulations and such software may not be
exported or re-exported to Cuba; Iran; Iraq; Libya; North Korea; Sudan; or
Syria or any country to which the United States embargoes goods. In addition;
Adobe software may not be distributed to persons on the Table of Denial
Orders; the Entity List; or the List of Specially Designated Nationals.
By downloading or using an Adobe software product you are certifying that you
are not a national of Cuba; Iran; Iraq; Libya; North Korea; Sudan; or Syria or
any country to which the United States embargoes goods and that you are not a
person on the Table of Denial Orders; the Entity List; or the List of
Specially Designated Nationals.
If the software is designed for use with an application software product (the
"Host Application") published by Adobe; Adobe grants you a non-exclusive
license to use such software with the Host Application only; provided you
possess a valid license from Adobe for the Host Application. Except as set
forth below; such software is licensed to you subject to the terms and
conditions of the End User License Agreement from Adobe governing your use of
the Host Application.
DISCLAIMER OF WARRANTIES: YOU AGREE THAT ADOBE HAS MADE NO EXPRESS WARRANTIES
TO YOU REGARDING THE SOFTWARE AND THAT THE SOFTWARE IS BEING PROVIDED TO YOU
"AS IS" WITHOUT WARRANTY OF ANY KIND. ADOBE DISCLAIMS ALL WARRANTIES WITH
REGARD TO THE SOFTWARE; EXPRESS OR IMPLIED; INCLUDING; WITHOUT LIMITATION;
ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE; MERCHANTABILITY;
MERCHANTABLE QUALITY OR NONINFRINGEMENT OF THIRD PARTY RIGHTS. Some states or
jurisdictions do not allow the exclusion of implied warranties; so the above
limitations may not apply to you.
LIMIT OF LIABILITY: IN NO EVENT WILL ADOBE BE LIABLE TO YOU FOR ANY LOSS OF
USE; INTERRUPTION OF BUSINESS; OR ANY DIRECT; INDIRECT; SPECIAL; INCIDENTAL;
OR CONSEQUENTIAL DAMAGES OF ANY KIND (INCLUDING LOST PROFITS) REGARDLESS OF
THE FORM OF ACTION WHETHER IN CONTRACT; TORT (INCLUDING NEGLIGENCE); STRICT
PRODUCT LIABILITY OR OTHERWISE; EVEN IF ADOBE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. Some states or jurisdictions do not allow the
exclusion or limitation of incidental or consequential damages; so the above
limitation or exclusion may not apply to you.
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