The Path Less Traveled: Abusing Kubernetes Defaults

Kubernetes is a container orchestration framework that is increasingly widely used in enterprise and elsewhere. While the industry is starting to pay some attention to Kubernetes security, there are many attack paths that aren’t well-documented, and are rarely discussed. This lack of information can make your clusters vulnerable. In this live demonstration-filled talk, we are going to walk through the Kubernetes control plane before using sigs.k8s.io/kind to show some of the attack surface exposed by a default configuration of Kubernetes. There will be multiple exploits involving various moving parts, including cluster takeovers and host escapes. We’ll show you mitigations, and then show you how to get around those. By Ian Coldwater and Duffie Cooley