CVE-2022-26143: A Zero-Day vulnerability for launching UDP amplification DDoS attacks

What this post added

This post details the discovery and mitigation of CVE-2022-26143, a zero-day vulnerability in the Mitel MiCollab platform that enables UDP amplification DDoS attacks. It explains the exploit mechanism, Cloudflare's autonomous detection and mitigation systems, and provides specific instructions for Magic Transit customers to block the vulnerability using Magic Firewall rules. The post also highlights Cloudflare's commitment to providing unmetered and unlimited DDoS protection.