Microsoft Internet Explorer getElementsByTagName Memory Corruption Vulnerability

August 5th, 2009
ZDI-09-047 ZDI-CAN-483

CVE ID

CVE-2009-1918

CVSS Score

None None

Affected Vendors

Microsoft

Affected Products

Internet Explorer

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 appending of elements to an invalid object. When appending malformed elements to a empty DIV element memory corruption can occur. A properly constructed web page can result in remote code execution under the context of the current user.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/Bulletin/MS09-034.mspx

Disclosure Timeline

  • 2009-04-28 - Vulnerability reported to vendor
  • 2009-08-05 - Coordinated public release of advisory

Credit

wushi&ling of team509

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