Cross-site request forgery (CSRF) vulnerability in util_system.html in Belkin N900 router allows remote attackers to hijack the authentication of administrators for requests that change configuration settings including passwords and remote management ports.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-3024
http://securityevaluators.com/knowledge/case_studies/routers/belkin_n900.php
http://securityevaluators.com/knowledge/case_studies/routers/Vulnerability_Catalog.pdf