Wonder CMS 2.3.1 - 'Host' Header Injection

EDB-ID: 43964
Author: Samrat Das
Published: 2018-02-05
CVE: CVE-2017-14523
Type: Webapps
Platform: PHP
Vulnerable App: Download Vulnerable Application

 # 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.

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