Microsoft Windows JavaScript Array.concat Type Confusion Information Disclosure Vulnerability

2017-01-20T00:00:00
ID ZDI-16-677
Type zdi
Reporter Anonymous
Modified 2017-06-22T00:00:00

Description

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Windows. 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 the JavaScript Array.concat method. By performing actions in JavaScript an attacker can trigger a type confusion condition. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.