VBScript Engine Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Summary

VBScript Engine suffers from improper restriction of operations within the bounds of a memory buffer vulnerability

Credit:

The information has been provided by Yuki Chen 

The original article can be found at:  https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1307


Details

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge (HTML-based)L. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Vulnerable Systems:

VBScript Engine 

CVE Information:

CVE-2019-1239  

Disclosure Timeline:
Published Date:10/10/2019