7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.058 Low
EPSS
Percentile
93.4%
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>
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.058 Low
EPSS
Percentile
93.4%