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ZDI-12-193 : Microsoft Internet Explorer insertAdjacentText Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-193
December 21, 2012

- -- CVE ID:
CVE-2012-1879

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

- -- Affected Vendors:
Microsoft


- -- Affected Products:
Microsoft Internet Explorer


- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12383.
For further product information on the TippingPoint IPS, visit:

     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 or open a malicious file.

The specific flaw exists within the way Internet Explorer handles repeated
calls to insertAdjacentText. When the size of the element reaches a certain
threshold Internet Explorer fails to correctly relocate key elements. An
unitialized variable in one of the function can cause memory corruption.
This can lead to remote code execution under the context of the program.

- -- Vendor Response:
Microsoft has issued an update to correct this vulnerability. More details
can be found at:
  https://technet.microsoft.com/en-us/security/bulletin/ms12-037


- -- Disclosure Timeline:
2012-03-14 - Vulnerability reported to vendor
2012-12-21 - Coordinated public release of advisory


- -- Credit:
This vulnerability was discovered by:
* Anonymous

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