Microsoft Internet Explorer TIME2 Behavior Remote Code Execution Vulnerability

April 2nd, 2010
ZDI-10-033 ZDI-CAN-548

CVE ID

CVE-2010-0492

CVSS Score

10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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 web page.

The issue is located within the CTimeAction object. During handling of the TIME2 behavior, an attacker can trick the application into destroying the markup causing the application to reference memory that has previously been freed. Successful exploitation can lead to code execution under the context of the application.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms10-018.mspx

Disclosure Timeline

  • 2009-08-10 - Vulnerability reported to vendor
  • 2010-04-02 - Coordinated public release of advisory

Credit

Simon Zuckerbraun

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