Attackers Exploit Critical Zimbra Vulnerability Using CC'd Email Addresses

An anonymous reader quotes a report from Ars Technica: Attackers are actively exploiting a critical vulnerability in mail servers sold by Zimbra in an attempt to remotely execute malicious commands that install a backdoor, researchers warn. The vulnerability, tracked as CVE-2024-45519, resides in the Zimbra email and collaboration server used by medium and large organizations. When an admin manually changes default settings to enable the postjournal service, attackers can execute commands by sen