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You are not logged in. [Log In] AppleCentral » Forums » Mac » Software » Hahaha: Nat'l Cyber Alert: Disable Flash
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#525721 - 06/09/10 06:15 PM Hahaha: Nat'l Cyber Alert: Disable Flash
Ben Dover Offline
Colorectalogist Emeritus

Registered: 06/13/09
Posts: 709
Loc: Sunnyvale, CA, USA
US-CERT Technical Cyber Security Alert TA10-159A

Well, it sucks iPad is pretty worthless for my kids insofar as the prevalence of Flash stuff for kids, so much for the best full web experience, but Adobe certainly is looking like the BP of big software smile

Quote:
III. Solution

Disable Flash in your web browser

Uninstall Flash or restrict which sites are allowed to run Flash. To the extent possible, only run trusted Flash content on trusted domains. For more information, see Securing Your Web Browser.

Disable Flash in Adobe Reader and Acrobat

Disabling Flash in Adobe Reader will mitigate attacks that rely on Flash content embedded in a PDF file. Disabling 3D & Multimedia support does not directly address the vulnerability, but it does provide additional mitigation and results in a more user-friendly error message instead of a crash. To disable Flash and 3D & Multimedia support in Adobe Reader 9, delete, rename, or remove access to these files:

Microsoft Windows
"%ProgramFiles%\Adobe\Reader 9.0\Reader\authplay.dll"
"%ProgramFiles%\Adobe\Reader 9.0\Reader\rt3d.dll"

Apple Mac OS X
"/Applications/Adobe Reader 9/Adobe Reader.app/Contents/Frameworks/AuthPlayLib.bundle"
"/Applications/Adobe Reader 9/Adobe Reader.app/Contents/Frameworks/Adobe3D.framework"

GNU/Linux (locations may vary among distributions)
"/opt/Adobe/Reader9/Reader/intellinux/lib/libauthplay.so"
"/opt/Adobe/Reader9/Reader/intellinux/lib/librt3d.so"

File locations may be different for Adobe Acrobat or other Adobe products that include Flash and 3D & Multimedia support. Disabling these plugins will reduce functionality and will not protect against Flash content hosted on websites. Depending on the update schedule for products other than Flash Player, consider leaving Flash and 3D & Multimedia support disabled unless they are absolutely required.

Prevent Internet Explorer from automatically opening PDF documents

The installer for Adobe Reader and Acrobat configures Internet Explorer to automatically open PDF files without any user interaction. This behavior can be reverted to a safer option that prompts the user by importing the following as a .REG file:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\AcroExch.Document.7]
"EditFlags"=hex:00,00,00,00

Disable the display of PDF documents in the web browser

Preventing PDF documents from opening inside a web browser will partially mitigate this vulnerability. If this workaround is applied, it may also mitigate future vulnerabilities.

To prevent PDF documents from automatically being opened in a web browser, do the following:

1. Open Adobe Acrobat Reader.
2. Open the Edit menu.
3. Choose the Preferences option.
4. Choose the Internet section.
5. Uncheck the "Display PDF in browser" checkbox.

Disable JavaScript in Adobe Reader and Acrobat

Disabling JavaScript provides some additional protection against attacks. Acrobat JavaScript can be disabled using the Preferences menu (Edit -> Preferences -> JavaScript; uncheck Enable Acrobat JavaScript).

Enable DEP in Microsoft Windows

Consider enabling Data Execution Prevention (DEP) in supported versions of Windows. DEP should not be treated as a complete workaround, but it can mitigate the execution of attacker-supplied code in some cases. Microsoft has published detailed technical information about DEP in Security Research & Defense blog posts "Understanding DEP as a mitigation technology" part 1 and part 2. Use of DEP should be considered in conjunction with the application of patches or other mitigations described in this document.

Do not access PDF documents from untrusted sources

Do not open unfamiliar or unexpected PDF documents, particularly those hosted on websites or delivered as email attachments. Please see Cyber Security Tip ST04-010.


Or just open in Preview smile

Ed

Sucks about Flash. Oh well. Let's see, BP gotta go. Who's next, Adobe?

Kill em and put em out of our misery.
_________________________
Fine! Ethel/Kate/Starmillway

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#525729 - 06/09/10 06:35 PM Re: Hahaha: Nat'l Cyber Alert: Disable Flash [Re: Ben Dover]
MacBozo Offline
Nut Dood

Registered: 04/21/02
Posts: 17704
Loc: Pinellas Park, Florida
You can also dl and install the RC which does not have the flaw. Also, a patch is due tomorrow. The Reader and Acrobat patch will be released on the 29th.


Edited by MacBozo (06/09/10 06:36 PM)
_________________________

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#525794 - 06/10/10 04:21 AM Re: Hahaha: Nat'l Cyber Alert: Disable Flash [Re: MacBozo]
carp Offline
Dino's are Babe magnets

Registered: 04/19/02
Posts: 27021
Loc: Hawaii
Well Apple did complain about Flash security flaws - so its confirmed that Adobe does have egg on its face laugh
_________________________

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