Microsoft Edge DownloadOperation Sandbox Escape Vulnerability

2019-05-15T00:00:00
ID ZDI-19-471
Type zdi
Reporter Arthur Gerkis of Exodus Intelligence (@ax330d)
Modified 2019-06-22T00:00:00

Description

This vulnerability allows remote attackers to escalate privileges on vulnerable installations of Microsoft Edge. 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 messages passed from the renderer process to the broker process of Microsoft Edge. A crafted message can trigger execution of a privileged operation. An attacker can leverage this vulnerability to escalate privileges and escape the Microsoft Edge sandbox.