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Log4jshell, which has been considered the biggest 0 day vulnerability of this decade, is still affecting thousands of servers worldwide. If you were affected, would it have been any different if you had used eBPF? Could you observe the malicious external connection, the JNDI lookup, the Java class download, or the remote code execution? Or even better, could you prevent it? Since eBPF provides us with a unique visibility directly into any Kubernetes workload on a single shared kernel - the answer is yes. This talk will take Log4jshell as a learning lesson and show you how it could have been detected and blocked in real time inside the kernel using eBPF. We will walk you through how open source eBPF based tools can give full network and process-level visibility to detect and prevent Log4jshell and your next CVE. We’ll finish by showcasing how Security Teams can easily put these tools in place to protect their critical Kubernetes environment and by giving Security best practices on how to prepare for their next CVE with eBPF.
Security Product Lead and previous Security Engineer with a strong background in Container and Cloud Security. Passionate about building things that matter and working with Software Engineers to apply Security Best Practices. Inclined towards modern and innovative technologies like... Read More →
John is currently leading the Security and Observability team at Isovalent where he created Tetragon a runtime security and observability tool. When not working on Tetragon he maintains various bits and pieces of the Linux kernel contributing primarily to the BPF subsystem and networking... Read More →
