Thinfinity VirtualUI 2.5.41.0 IFRAME Injection

Exploit Title: Thinfinity VirtualUI 2.5.41.0 – IFRAME Injection
Date: 16/12/2021
Exploit Author: Daniel Morales
Vendor: https://www.cybelesoft.com <https://www.cybelesoft.com/>
Software Link: https://www.cybelesoft.com/thinfinity/virtualui/ <https://www.cybelesoft.com/thinfinity/virtualui/>
Version: Thinfinity VirtualUI < v3.0
Tested on: Microsoft Windows
CVE: CVE-2021-45092

How it works
By accessing the following payload (URL) an attacker could iframe any external website (of course, only external endpoints that allows being iframed).

Payload
The vulnerable vector is “https://example.com/lab.html?vpath=//wikipedia.com <https://example.com/lab.html?vpath=//wikipedia.com> ” where “vpath=//” is the pointer to the external site to be iframed.

Vulnerable versions
It has been tested in VirtualUI version 2.1.37.2, 2.1.42.2, 2.5.0.0, 2.5.36.1, 2.5.36.2 and 2.5.41.0.

References
https://github.com/cybelesoft/virtualui/issues/2 <https://github.com/cybelesoft/virtualui/issues/2>
https://www.tenable.com/cve/CVE-2021-45092 <https://www.tenable.com/cve/CVE-2021-45092>
https://twitter.com/danielmofer <https://twitter.com/danielmofer>