bugtraq - ZDI-07-074: Microsoft Internet Explorer Node Manipulation Memory Corruption

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Message-ID: <OF1E861126.BFC42260-ON882573AE.006ACA72-862573AE.0079A3D1@3com.com>
Date: Tue, 11 Dec 2007 16:08:39 -0600
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-07-074: Microsoft Internet Explorer Node Manipulation Memory Corruption

ZDI-07-074: Microsoft Internet Explorer Node Manipulation Memory 
Corruption Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-074.html
December 11, 2007

-- CVE ID:
CVE-2007-3903

-- Affected Vendor:
Microsoft

-- Affected Products:
Internet Explorer 6
Internet Explorer 7

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5823, 5824. 
For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of Microsoft Internet Explorer. User
interaction is required to exploit this vulnerability in that the
target must visit a malicious page.

The flaw exists due to improper use of the "cloneNode" and "nodeValue"
javascript functions. When a specially crafted element is used during a
repetitive call to one of these functions memory corruption can occur
leading to remote code execution.

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

http://www.microsoft.com/technet/security/bulletin/ms07-069.mspx

-- Disclosure Timeline:
2007.05.22 - Vulnerability reported to vendor
2007.12.11 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Sam Thomas.

-- 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.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com 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, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

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