CVE-2019-11712

Las peticiones POST realizadas por complementos de NPAPI, tal y como Flash, que reciben una respuesta de redireccionamiento del estado 308 pueden pasar por alto los requerimientos de CORS. Esto puede permitir a un atacante realizar ataques de tipo Cross-Site Request Forgery (CSRF). Esta vulnerabilidad afecta a Firefox ESR anterior a versión 60.8, Firefox anterior a versión 68 y Thunderbird anterior a versión 60.8.

A sandbox escape was discovered in Firefox. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass same origin restrictions, conduct cross-site scripting attacks, conduct cross-site request forgery attacks, spoof origin attributes, spoof the addressbar contents, bypass safebrowsing protections, or execute arbitrary code. Various other issues were also addressed.