CVE-2015-0812

Mozilla Firefox anterior a 37.0 no requiere una sesión HTTPS para las instalaciones de adición de temas ligeros, lo que permite a atacantes man-in-the-middle evadir el requerimiento de confirmación de usuario mediante el despliegue un sito web manipulado y la realización de un ataque de la falsificación de DNS contra un subdominio mozilla.org.

Olli Pettay and Boris Zbarsky discovered an issue during anchor navigations in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same-origin policy restrictions. Bobby Holley discovered that windows created to hold privileged UI content retained access to privileged internal methods if navigated to unprivileged content. An attacker could potentially exploit this in combination with another flaw, in order to execute arbitrary script in a privileged context. Various other issues were also addressed.