CVE-2008-4918

Vulnerabilidad de secuencias de comandos en sitios cruzados (XSS) en SonicWALL SonicOS Enhanced anterior a v4.0.1.1, como el utilizado en SonicWALL Pro 2040 y TZ 180 y 190; permite a atacantes remotos inyectar secuencias de comandos Web o HTML en sitios web de su elección a través de una URL a un sitio que se basa en el bloqueo de filtrado de contenidos; esto no se maneja adecuadamente en la página de bloqueo CFS. También se conoce como "secuestro universal del sitio web" (universal website hijacking).

This vulnerability allows remote attackers to execute a script injection attack on arbitrary sites through vulnerable installations of SonicWALL. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page or open a malicious web link.
The specific flaw exists in the default error page displayed when a user requests access to a web site that is blocked based on the devices content-filtering rules. Insufficient sanity checks allow an attacker to craft a URL that will trigger an error and simultaneously inject a malicious script. As the browser is unable to differentiate between content delivered from the original top level site requested and the inline device, the script injection occurs under the context of the target domain. This can result in various further compromise.