Zimbra Zero-Day Exploit: When Calendars Attack!
Zimbra users are caught in a zero-day exploit whirlwind with malicious iCalendar attachments. The sneaky script hijacks sessions, redirects emails, and exfiltrates data, making calendar invites less about meetings and more about mayhem. It’s time to watch your inbox like a hawk, or better yet, a paranoid calendar app!
Hot Take:
You know it’s a bad day when your calendar, the one thing meant to organize your life, decides to team up with hackers to wreak havoc instead. Who knew iCalendar entries could go from “Let’s meet at 3 PM” to “Let’s steal all your secrets” so seamlessly? It’s like your calendar appointments have become less about meetings and more about leaking your life’s agenda to the bad guys. Remember folks, when your calendar starts plotting against you, it’s time to rethink your life choices… or at least your cybersecurity.
Key Points:
– Zimbra Collaboration Suite hit by zero-day exploit via malicious iCalendar (.ICS) files.
– Vulnerability CVE-2025-27915 allows JavaScript payloads to hijack sessions and exfiltrate data.
– Attacks involved spoofing the Libyan Navy to target Brazil’s military using obfuscated JavaScript.
– Malware uses advanced evasion techniques and logs out idle users to steal data.
– StrikeReady researchers speculate similarities to Belarusian APT group UNC1151.