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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2006.0115 -- AUSCERT ALERT
                                   [Win]
           Potential vulnerabilities in Adobe Reader and Acrobat
                              7 December 2006

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        AusCERT Alert Summary
        ---------------------

Product:              Adobe Reader 7.0.0 to 7.0.8
                      Adobe Acrobat Standard and Professional 7.0.0 to 7.0.8
Publisher:            Adobe
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-6072

Comment: An update for Adobe Reader and Acrobat has been released to fix
         this vulnerability. According to Adobe, users of Adobe Reader 7
         software should upgrade to Reader 8 at:
         
           http://www.adobe.com/products/acrobat/readstep2.html
         
         If upgrading is not possible, or for users of Acrobat 7, Adobe
         recommends replacing the existing installations AcroPDF.dll with
         the one found at:
         
           http://www.adobe.com/support/security/bulletins/acropdf.dll
         
         This DLL can be found within the ActiveX subdirectory of Reader
         and Acrobat's installation directory, commonly:
         
           C:\Program Files\Adobe\Acrobat 7

Revision History:  December  7 2006: An update has been released
                   November 30 2006: Initial Release

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Potential vulnerabilities in Adobe Reader and Acrobat

Release date: November 28, 2006

Vulnerability identifier: APSA06-02

CVE number: CVE-2006-6027

Platform: Windows

Summary

Adobe is aware of a recently published report of potential vulnerabilities in 
Adobe Reader and Acrobat. These vulnerabilities would cause the application to
crash and could potentially allow an attacker to take control of the affected 
system.

Affected software versions

Adobe Reader 7.0.0 through 7.0.8 and Adobe Acrobat Standard and Professional 
7.0.0 through 7.0.8 on the Windows platform when using Internet Explorer. Users
of other browsers are not affected.

Solution

The Secure Software Engineering team is working with the Adobe Reader 
Engineering team on an update to Adobe Reader and Acrobat 7.0.8 that will 
resolve these issues, which is expected to be available in the near future. 
A security bulletin will be published on http://www.adobe.com/support/security
as soon as that update is available.

The upcoming version of Adobe Reader, which will not be vulnerable to this
issue, is also expected to be available in the near future. Acrobat 8 is not
affected by this issue. The vulnerability is in an ActiveX control used by 
Internet Explorer; users of other browsers are not affected. The following
workaround will prevent these vulnerabilities from occurring in Adobe Reader
7.0.X on Windows using Internet Explorer:

   1. Exit Internet Explorer and Adobe Reader.
   2. Browse to <volume>:\Program Files\Adobe\Acrobat 7.0\ActiveX.
      Note: If you did not install Acrobat to the default location, browse to
      the location of your Acrobat 7.0 folder.
   3. Select AcroPDF.dll and delete it.

NOTE: This workaround will prevent PDF documents from opening within an 
Internet Explorer window. After applying this workaround, clicking on PDF 
files within Internet Explorer will either open in a separate instance of Adobe
Reader or the user will be prompted to download the file, which can then be
opened in Adobe Reader. This workaround may disrupt some enterprise workflows
and use of PDF forms.

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 a critical issue.

Acknowledgments

Adobe would like to thank FrSIRT.com for reporting these vulnerabilities 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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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)
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