Multiple cross-site request forgery (CSRF) vulnerabilities in the web interface on the Cisco Scientific Atlanta WebSTAR DPC2100R2 cable modem with firmware 2.0.2r1256-060303 allow remote attackers to hijack the authentication of administrators for requests that (1) reset the modem, (2) erase the firmware, (3) change the administrative password, (4) install modified firmware, or (5) change the access level, as demonstrated by a request to goform/_aslvl.