bugtraq - ZDI-10-100: Apple Webkit ConditionEventListener Remote Code Execution Vulnerability

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Message-ID: <EE499D69B3D0714590B6FE9762B0461104BD3C36B0@emb01.unity.local>
Date: Tue, 8 Jun 2010 11:54:10 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-100: Apple Webkit ConditionEventListener Remote Code
 Execution Vulnerability

ZDI-10-100: Apple Webkit ConditionEventListener Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-100
June 8, 2010

-- CVE ID:
CVE-2010-1402

-- Affected Vendors:
Apple

-- Affected Products:
Apple WebKit

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9873. 
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 Apple's Webkit. 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 how the application duplicates event
listeners in .svg documents. Upon creating an AnimateTransform object,
the library will create a timer to handle the transformation and
duplicate the object's event listener into Webkit's "shadow tree" of the
image. Upon destruction of the shadow tree and the original tree, the
application will destroy the Element containing the event listener
twice. This can lead to code execution under the context of the
application.

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

http://support.apple.com/kb/HT4196

-- Disclosure Timeline:
2010-02-18 - Vulnerability reported to vendor
2010-06-08 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * wushi of team509

-- About the Zero Day Initiative (ZDI):
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disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
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    http://www.zerodayinitiative.com

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