Multiple cross-site request forgery (CSRF) vulnerabilities in the management screen on Buffalo WHR, WZR2, WZR, WER, and BBR series routers with firmware 1.x; BHR-4RV and FS-G54 routers with firmware 2.x; and AS-100 routers allow remote attackers to hijack the authentication of administrators for requests that modify settings, as demonstrated by changing the login password.
Cross-site request forgery (CSRF) vulnerability in the device management interface in Buffalo AirStation WHR-G54S 1.20 allows remote attackers to make configuration changes as an administrator via HTTP requests to certain HTML pages in the res parameter with an inp req parameter to cgi-bin/cgi, as demonstrated by accessing (1) ap.html and (2) filter_ip.html.