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

2020-05-12T00:00:00
ID ZDI-20-639
Type zdi
Reporter Hossein Lotfi of Trend Micro Zero Day Initiative
Modified 2020-06-22T00:00:00

Description

This vulnerability allows remote attackers to execute arbitrary code on affected 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 the CWMPErrorDlg object. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.