Critical Zero Day Exploit in Adobe Acrobat and Flash

Adobe has released a Critical Advisory on Flash Player and Adobe Acrobat. Here is an extract from the Adobe Advisory:

A critical vulnerability exists in Adobe Flash Player 10.1.85.3 and earlier versions for Windows, Macintosh, Linux and Solaris operating systems; Adobe Flash Player 10.1.95.2 and earlier versions for Android; and the authplay.dll component that ships with Adobe Reader 9.4 and earlier 9.x versions for Windows, Macintosh and UNIX operating systems, and Adobe Acrobat 9.4 and earlier 9.x versions for Windows and Macintosh operating systems.

This vulnerability (CVE-2010-3654) could cause a crash and potentially allow an attacker to take control of the affected system. There are reports that this vulnerability is being actively exploited in the wild against Adobe Reader and Acrobat 9.x. Adobe is not currently aware of attacks targeting Adobe Flash Player.
The really scary thing is that this vulnerability is already exploited in the wild. Adobe plans to release updates for the affected systems in the next week

There is a workaround that can be used in the meantime, but it requires a lot of footwork in a large organization.

Adobe Reader and Acrobat 9.x - Windows
Deleting, renaming, or removing access to the authplay.dll file that ships with Adobe Reader and Acrobat 9.x mitigates the threat for those products, but users will experience a non-exploitable crash or error message when opening a PDF file that contains Flash (SWF) content.

The authplay.dll that ships with Adobe Reader and Acrobat 9.x for Windows is typically located at C:\Program Files\Adobe\Reader 9.0\Reader\authplay.dll for Adobe Reader or C:\Program Files\Adobe\Acrobat 9.0\Acrobat\authplay.dll for Acrobat.

Adobe Reader 9.x - Macintosh
1) Go to the Applications->Adobe Reader 9 folder.
2) Right Click on Adobe Reader.
3) Select Show Package Contents.
4) Go to the Contents->Frameworks folder.
5) Delete or move the AuthPlayLib.bundle file.

Acrobat Pro 9.x - Macintosh
1) Go to the Applications->Adobe Acrobat 9 Pro folder.
2) Right Click on Adobe Acrobat Pro.
3) Select Show Package Contents.
4) Go to the Contents->Frameworks folder.
5) Delete or move the AuthPlayLib.bundle file.

Adobe Reader 9.x - UNIX
1) Go to installation location of Reader (typically a folder named Adobe).
2) Within it browse to Reader9/Reader/intellinux/lib/ (for Linux) or Reader9/Reader/intelsolaris/lib/ (for Solaris).
3) Remove the library named "libauthplay.so.0.0.0."


Talkback and comments are most welcome

2 comments:

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