CVE-2020-12618

https://notcve.org/view.php?id=CVE-2020-12618

eM Client before 7.2.33412.0 automatically imported S/MIME certificates and thereby silently replaced existing ones. This allowed a man-in-the-middle attacker to obtain an email-validated S/MIME certificate from a trusted CA and replace the public key of the entity to be impersonated. This enabled the attacker to decipher further communication. The entire attack could be accomplished by sending a single email. eM Client versiones anteriores a 7.2.33412.0 importaba automáticamente certificados S/MIME y, por lo tanto, reemplazaba silenciosamente los existentes. Esto permitió a un atacante de tipo man-in-the-middle obtener un certificado S/MIME comprobado por correo electrónico de una CA confiable y reemplazar la clave pública de la entidad a ser suplantada. • https://www.emclient.com/release-history https://www.nds.ruhr-uni-bochum.de/media/nds/veroeffentlichungen/2020/08/15/mailto-paper.pdf •