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Zero Day Initiative Advisory 08-072

Zero Day Initiative Advisory 08-072
Posted Nov 5, 2008
Authored by Peter Vreugdenhil, Tipping Point | Site zerodayinitiative.com

A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat. 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 in the handling of embedded Javascript code when opening a PDF. Adobe Acrobat has defined it's own set of Javascript functions that can be used in a PDF file. Due to improper parameter checking to one of these functions arbitrary memory can be over-written leading to remote code execution. If successfully exploited remote control of the target system can be gained with the credentials of the logged in user.

tags | advisory, remote, arbitrary, javascript, code execution
advisories | CVE-2008-2992
SHA-256 | 32057ab035963d55bca65f0262c3900d8b1ae3a4ff8d48a1d912e522ba19477c

Zero Day Initiative Advisory 08-072

Change Mirror Download
ZDI-08-072: Adobe Acrobat PDF Javascript printf Stack Overflow 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-072
November 4, 2008

-- CVE ID:
CVE-2008-2992

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Acrobat

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Adobe Acrobat. 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 in the handling of embedded Javascript code
when opening a PDF. Adobe Acrobat has defined it's own set of
Javascript functions that can be used in a PDF file. Due to improper
parameter checking to one of these functions arbitrary memory can be
over-written leading to remote code execution. If successfully
exploited remote control of the target system can be gained with the
credentials of the logged in user.

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

http://www.adobe.com/support/security/bulletins/apsb08-19.html

-- Disclosure Timeline:
2008-01-21 - Vulnerability reported to vendor
2008-11-04 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* Peter Vreugdenhil

-- 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/

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments,
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