Microsoft Internet Explorer saveHistory Use-After-Free Remote Code Execution Vulnerability

March 22nd, 2013
ZDI-13-043 ZDI-CAN-1649

CVE ID

CVE-2013-0088

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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 issue is due to the way Internet Explorer handles elements associated to the saveHistory behavior and an onload event handler. The process can be made to re-use a freed object. This can lead to a use-after-free scenario which can be leveraged to execute code under the context of the user running the browser.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/security/bulletin/ms13-021

Disclosure Timeline

  • 2012-10-24 - Vulnerability reported to vendor
  • 2013-03-22 - Coordinated public release of advisory

Credit

Anonymous

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