Multiple cross-site request forgery (CSRF) vulnerabilities in Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway hardware 1.0 with firmware CH6640-188.8.131.52-NOSH allow remote attackers to hijack the authentication of administrators for requests that (1) have unspecified impact on DDNS configuration via a request to basicDDNS.html, (2) change the wifi password via the psKey parameter to setWirelessSecurity.html, (3) add a static MAC address via the MacAddress parameter in an add_static action to setBasicDHCP1.html, or (4) enable or disable UPnP via the UPnP parameter in an apply action to setAdvancedOptions.html.
* Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway hardware 1.0 with firmware CH6640-184.108.40.206-NOSH
CBN CH6640E/CG6640E Wireless Gateway is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to get DDNS config, change wifi password, add static mac address and enable or disable UPnP. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.