Advisory Details

October 7th, 2015

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

ZDI-15-458
ZDI-CAN-2949

CVE ID CVE-2015-2408
CVSS SCORE 6.8, (AV:N/AC:M/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 or open a malicious file.

The specific flaw exists within the handling of CTitleElement objects. By manipulating a document's elements, an attacker can force a dangling pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute arbitrary 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/ms15-065.aspx
DISCLOSURE TIMELINE
  • 2015-06-02 - Vulnerability reported to vendor
  • 2015-10-07 - Coordinated public release of advisory
CREDIT Zheng Huang of Baidu Scloud XTeam
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