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HistoryAug 26, 2010 - 12:00 a.m.

ZDI-10-164: Adobe Shockwave Player Director File FFFFFF88 Record Processing Remote Code Execution Vulnerability

2010-08-2600:00:00
vulners.com
18

ZDI-10-164: Adobe Shockwave Player Director File FFFFFF88 Record Processing Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-164
August 24, 2010

– CVE ID:
CVE-2010-2876

– CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

– 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 10285.
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 the Adobe Shockwave Player. 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 code responsible for parsing .dir
and .dcr files. The director file format is RIFF based. While parsing an
undocumented record of type 0xFFFFFFF8 the process trusts two user
supplied word values when performing arithmetic to calculate a heap
buffer size. By specifying large enough values an integer wrap can
occur. The allocated heap buffer can later be overflowed with user
supplied data. This can be leveraged by attackers to execute remote 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/apsb10-20.html

– Disclosure Timeline:
2010-07-20 - Vulnerability reported to vendor
2010-08-24 - Coordinated public release of advisory

– Credit:
This vulnerability was discovered by:
* Anonymous

– 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:

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