Advisory Details

December 9th, 2014

Microsoft Internet Explorer Insert Command Use-After-Free Remote Code Execution Vulnerability

ZDI-14-405
ZDI-CAN-2503

CVE ID CVE-2014-6375
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['16739']. 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 or open a malicious file.

The vulnerability relates to how Internet Explorer processes HTML elements created using the script method execCommand. An attacker can cause Internet Explorer to allocate memory for such an element and later to reuse the memory after the time it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/library/security/ms14-080.aspx
DISCLOSURE TIMELINE
  • 2014-09-04 - Vulnerability reported to vendor
  • 2014-12-09 - Coordinated public release of advisory
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