ZDI-08-050: Microsoft Internet Explorer XHTML Rendering Memory Corruption- Vulnerability

From: zdi-disclosures@3Com.com
To: full-disclosure@lists.grok.org.uk,bugtraq@securityfocus.com
Cc: zdi-disclosures@3Com.com
Subject: ZDI-08-050: Microsoft Internet Explorer XHTML Rendering Memory Corruption- Vulnerability
Date:


ZDI-08-050: Microsoft Internet Explorer XHTML Rendering Memory Corruption 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-050
August 12, 2008

-- CVE ID:
CVE-2008-2257

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Internet Explorer 6
Microsoft Internet Explorer 7

-- Vulnerability Details:
This vulnerability allows remote 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 specific flaw exists in the handling of document objects.  When an
object is appended in a specific order, memory corruption occurs. 
Successful exploitation leads to remote compromise of the affected
system under the credentials of the currently logged in user.

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

http://www.microsoft.com/technet/security/bulletin/MS08-045.mspx

-- Disclosure Timeline:
2008-04-16 - Vulnerability reported to vendor
2008-08-12 - Coordinated public release of advisory

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

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