Advisory Details

September 15th, 2017

Microsoft Internet Explorer JavaScript WeakMap Type Confusion Remote Code Execution Vulnerability

ZDI-17-726
ZDI-CAN-4985

CVE ID CVE-2017-8750
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 29576. 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 specific flaw exists within the handling of WeakMap objects in JavaScript. By performing actions in JavaScript an attacker can trigger a type confusion condition. 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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8750
DISCLOSURE TIMELINE
  • 2017-07-10 - Vulnerability reported to vendor
  • 2017-09-15 - Coordinated public release of advisory
CREDIT likemeng of Baidu Security Lab(Baidu Security Lab is linked to the site :xlab.baidu.com)
BACK TO ADVISORIES