bugtraq - ZDI-10-146: Apple Webkit Anchor Tag Mouse Click Event Dispatch Remote Code Execution Vulnerability

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Date: Mon, 9 Aug 2010 15:17:13 -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-10-146: Apple Webkit Anchor Tag Mouse Click Event Dispatch
 Remote Code Execution Vulnerability

ZDI-10-146: Apple Webkit Anchor Tag Mouse Click Event Dispatch Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-146
August 9, 2010

-- CVE ID:
CVE-2010-0048

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

-- Affected Vendors:
Apple

-- Affected Products:
Apple Safari

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10141. 
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 Safari'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 the library's support for mouse events
on a particular element. If a mouse event is dispatched to an element
when one of it's attributes is undefined, the library will dereference a
memory pointer pointing to arbitrary data. Usage of this element can
then lead to code execution under the context of the application.

-- Vendor Response:
Apple states:
http://support.apple.com/kb/HT4225
http://support.apple.com/kb/HT4070

-- Disclosure Timeline:
2010-06-01 - Vulnerability reported to vendor
2010-08-09 - Coordinated public release of advisory

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

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

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

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