CVE-2020-36519

https://notcve.org/view.php?id=CVE-2020-36519

Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. (The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs.) Mimecast Email Security versiones anteriores a 10-01-2020 permite a cualquier administrador falsificar cualquier dominio y pasar la alineación DMARC por medio de SPF. Esto ocurre por el uso inapropiado de la funcionalidad address rewrite. • https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification •