At the start of the year, researchers discovered that attackers were exploiting a zero-day vulnerability in the Zimbra Collaboration Suite through specially crafted .ICS calendar attachments. These attachments were unusually large and triggered monitoring alerts. The exploitation allowed attackers to potentially compromise systems running vulnerable Zimbra versions.
Zimbra is widely used by organizations for communication and collaboration, making this flaw particularly concerning due to the potential impact on sensitive data and operations. The attackers’ use of calendar files as the attack vector is notable because it can bypass some traditional email security filters.
The continued existence of zero-day vulnerabilities in popular collaboration platforms underscores the importance of timely security updates and monitoring unusual file activity. Organizations must prioritize patching and enhance detection capabilities to mitigate risks associated with similar exploits in the future.
👉 Pročitaj original: BleepingComputer
