Advisory Details

December 11th, 2007

Microsoft Internet Explorer Element Tags Vulnerability

ZDI-07-075
ZDI-CAN-230

CVE ID CVE-2007-5344
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 5822. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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 that have been created, modified, deleted then accessed by JavaScript. By storing references to document nodes, then removing them by a separate reference, the document model in memory becomes unstable. Accessing the tags property while the document is in this unstable condition results in a heap corruption, allowing the execution of arbitrary code.

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
  • 2007-07-20 - Vulnerability reported to vendor
  • 2007-12-11 - Coordinated public release of advisory
CREDIT Peter Vreugdenhil
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