The original title is: "Hardening Kubernetes: How to Block `kubectl debug node` from Breaking Your Cluster Matrix"

Short summary

The `kubectl debug node` command spawns a privileged pod that bypasses standard pod security restrictions, giving full root access to the host filesystem. This tutorial shows how to block this attack vector by enforcing Kubernetes Restricted pod security standards namespace-by-namespace and cluster-wide via Admission Configuration, plus tightening RBAC on nodes/proxy and pods/ephemeralcontainers subresources. It also demonstrates a k0s Docker lab for testing and recommends a dedicated break-glass namespace for emergency node debugging.

• •kubectl debug node bypasses pod security and grants host root access
• •Enforce Restricted pod security standards and tighten RBAC to block the exploit
• •Use a dedicated break-glass namespace for audited emergency node debugging

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