Wonder CMS 2.3.1 - 'Host' Header Injection

# Exploit Title: Wonder CMS 2.3.1 Host Header Injection
# Date: 30-01-2018
# Exploit Author: Samrat Das
# Contact: http://twitter.com/Samrat_Das93
# Website: https://securitywarrior9.blogspot.in/
# Vendor Homepage: https://www.wondercms.com/
# Version: 2.3.1
# CVE : CVE-2017-14523
# Category: Webapp CMS

1. Description

The application allows illegitimate host header manipulation and leads to aribtary web page re-direction. This can also lead to severe attacks such as password reset or web cache poisoning

 
   
2. Proof of Concept

Intercept any web request of cms using a proxy tool. 
Change the http host header to: 
POST / HTTP/1.1
Host: google.com

You can observe the page being re-directed and the Location header changed in response to: http://www.google.com/ 
   
3. Solution:
   
To Mitigate host header injections allows only a whitelist of allowed hostnames.