Advisory Details

June 12th, 2007

Microsoft Internet Explorer Prototype Dereference Code Execution Vulnerability

ZDI-07-038
ZDI-CAN-168

CVE ID CVE-2007-1751
CVSS SCORE
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 4761. 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 is specifically exposed when a prototype variable points to a table cell and then that table cell is removed. This results in an invalid pointer dereference which can be leveraged to result in arbitrary 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/ms07-033.mspx
DISCLOSURE TIMELINE
  • 2007-02-15 - Vulnerability reported to vendor
  • 2007-06-12 - Coordinated public release of advisory
CREDIT Sam Thomas
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