what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Technical Cyber Security Alert 2010-159A

Technical Cyber Security Alert 2010-159A
Posted Jun 12, 2010
Authored by US-CERT | Site us-cert.gov

Technical Cyber Security Alert 2010-159A - According to Adobe, there is a vulnerability in Adobe Flash. This vulnerability affects Flash Player, Reader, Acrobat, and possibly other products that support Flash. A remote attacker could exploit this vulnerability to execute arbitrary code.

tags | advisory, remote, arbitrary
SHA-256 | 92d4d10d9876e9f473c2b97c245bf320a1cd8e2ed321e0718a268d019d732f99

Technical Cyber Security Alert 2010-159A

Change Mirror Download

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


National Cyber Alert System

Technical Cyber Security Alert TA10-159A


Adobe Flash, Reader, and Acrobat Vulnerability

Original release date: June 08, 2010
Last revised: --
Source: US-CERT


Systems Affected

* Adobe Flash Player 10.0.45.2 and earlier 10.x versions
* Adobe Flash Player 9.0.262 and earlier 9.x versions
* Adobe Reader 9.3.2 and earlier 9.x versions
* Adobe Acrobat 9.3.2 and earlier 9.x versions

Other Adobe products that support Flash may also be vulnerable.


Overview

According to Adobe, there is a vulnerability in Adobe Flash. This
vulnerability affects Flash Player, Reader, Acrobat, and possibly
other products that support Flash. A remote attacker could exploit
this vulnerability to execute arbitrary code.


I. Description

Adobe Security Advisory APSA10-01 describes a vulnerability in
Adobe Flash that affects Flash Player, Reader, and Acrobat. It may
also affect other products that independently support Flash, such
as Photoshop, Photoshop Lightroom, Freehand MX, and Fireworks.

An attacker could exploit this vulnerability by convincing a user
to open specially crafted Flash content. Flash content is commonly
hosted on a web page, but it can also be embedded in PDF and other
documents or provided as a stand-alone file.

As noted in APSA10-01, "There are reports that this vulnerability
is being actively exploited in the wild against both Adobe Flash
Player, and Adobe Reader and Acrobat."

Additional information is available in US-CERT Vulnerability Note
VU#486225.


II. Impact

If a user opens specially crafted Flash content, a remote attacker
may be able to execute arbitrary code.


III. Solution

Update

Adobe Security Advisory APSA10-01 suggests updating to the release
candidate of Flash Player 10.1.

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.


IV. References

* Security Advisory for Flash Player, Adobe Reader and Acrobat -
<http://www.adobe.com/support/security/advisories/apsa10-01.html>

* Adobe Labs - Flash Player 10 pre-release -
<http://labs.adobe.com/technologies/flashplayer10/>

* US-CERT Vulnerability Note VU#486225 -
<http://www.kb.cert.org/vuls/id/486225>

* Securing Your Web Browser -
<http://www.us-cert.gov/reading_room/securing_browser/>

* Understanding DEP as a mitigation technology part 1 -
<http://blogs.technet.com/b/srd/archive/2009/06/05/understanding-dep-as-a-mitigation-technology-part-1.aspx>

* Understanding DEP as a mitigation technology part 2 -
<http://blogs.technet.com/b/srd/archive/2009/06/12/understanding-dep-as-a-mitigation-technology-part-2.aspx>

____________________________________________________________________

The most recent version of this document can be found at:

<http://www.us-cert.gov/cas/techalerts/TA10-159A.html>
____________________________________________________________________

Feedback can be directed to US-CERT Technical Staff. Please send
email to <cert@cert.org> with "TA10-159A Feedback VU#486225" in
the subject.
____________________________________________________________________

For instructions on subscribing to or unsubscribing from this
mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
____________________________________________________________________

Produced 2010 by US-CERT, a government organization.

Terms of use:

<http://www.us-cert.gov/legal.html>
____________________________________________________________________

Revision History

June 08, 2010: Initial release


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iQEVAwUBTA65yT6pPKYJORa3AQLS9wf/fh+7IwRtBvoPgn8pYeOsVheLkbVLWC3W
miWUnY1acuPTwZzG5JcAldRHksFkx1j0mMEvp4PhtiTr51JFPi4XgDfrG4cEcVaw
nuAqEV+hLAWZkMex/jWxBV+85tZqKN0kiUr3bq5DPsdkhjV7c2MFfS8BSxLXLuPm
OFAXPT+XFldq6MJhYUOtWT1CIz6PNPfo68KmZaUThjdqkkBW3HQu90OSRf2c6M/u
V6KBQf7QuhpPqYUqAZU6ZUNEfL/7g2BwvuPjUMlgE5N+Z8EYnhyhu0qDtZeLUcXA
2gH31VEr79DUHJqpb9jk61bi5Dm4gjHeLHoTAwu0IrduZzXvWncfIg==
=ZPZM
-----END PGP SIGNATURE-----
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close