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ZDI-11-220: Adobe Shockwave Director File rcsL Chunk Multiple Opcode Parsing Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Wed, 15 Jun 2011 19:39:44 +0000

ZDI-11-220: Adobe Shockwave Director File rcsL Chunk Multiple Opcode Parsing Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-220

June 15, 2011

-- CVE ID:
CVE-2011-0335

-- CVSS:
7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Shockwave Player

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11368. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Adobe Shockwave. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page or open a malicious file.

The specific flaw exists within the parsing of the RIFF-based Director
(.dir) files. When handling an undocumented substructure, the code
within dirapi.dll can be forced to incorrectly calculate a destination
pointer if it encounters certain 1-byte opcodes within the .dir file.
The assumptions made by the code can allow for malicious values to
influence a size parameter that is used to calculate a memory address.
This address is then written to with controlled data. This can be abused
by an attacker to corrupt memory and subsequently execute arbitrary code
under the context of the user running the browser.

-- Vendor Response:
Adobe has issued an update to correct this vulnerability. More
details can be found at:

http://www.adobe.com/support/security/bulletins/apsb11-17.html

-- Disclosure Timeline:
2011-04-07 - Vulnerability reported to vendor
2011-06-15 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Aniway (Aniway.Anyway () gmail com)

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi


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