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Five Kubernetes role-based access control mistakes to avoid

September 26, 2018 / Kaizhe Huang

If you run workloads in Kubernetes, you know how much important data is accessible through the Kubernetes API—from details of deployments to persistent storage configurations to secrets. The Kubernetes community has delivered a number of impactful security features in 2017 and 2018, including Role-Based Access Control (RBAC) for the Kubernetes API.RBAC is a key security feature that protects your cluster by allowing you to control who can access specific API resources. Because the feature is relatively new, your organization might have configured RBAC in a manner that leaves you unintentionally exposed. To achieve least privilege without leaving unintentional weaknesses, be sure you haven't made any of the following five configuration mistakes. The most important advice we can give regarding RBAC is: “use it!” Different Kubernetes distributions and platforms have enabled RBAC by default at different times, and newly upgraded older clusters may still not enforce RB...