Anatomy of an Attack
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The Hidden Kubernetes Attack Surface: An Investigation Into How Cloud Infrastructure Hands Out Its Own Keys
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By
Brace
Part 0. What Kubernetes Is and Why It Exists Before talking about vulnerabilities, we need to establish what we’re actually defending. Without that, everything that follows collapses into a list of unfamiliar ports and acronyms. The problem Kubernetes solves Picture a company running a web application — say, an online store. In the simple case, it runs on a single server. But what happens once traffic grows? One server can’t keep up. You need to run the application across ten servers and somehow spread the load between them. If one server crashes overnight, who notices and restarts the application? And when a new version ships, how do you update all ten servers without taking the store down?