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The Hacker’s Guide to Kubernetes Security by Patrycja Wegrzynowicz
Learn how to secure your Kubernetes environment from common vulnerabilities and misconfigurations, including networking threats, image integrity issues, supply chain weaknesses, and more, with this comprehensive guide.
- Vulnerabilities are often found in K8s environments due to misconfigurations in control planes, worker nodes, or services.
- Networking is a major security threat, as Kubernetes components can expose APIs and vulnerabilities to public networks.
- Image integrity is crucial, as Kubernetes uses external images, and ensuring the correctness of these images is a major responsibility.
- Supply chain security is essential, as vulnerabilities can be injected into K8s environments through weak dependencies, outdated libraries, and unchecked third-party modules.
- Authentication mechanisms should be enforced, as weak default values in Kubernetes components allow anonymous authentication.
- Secrets should be managed correctly, as exposure can lead to the leaking of sensitive data.
- Node and container access should be restricted to prevent unprivileged access, and roles should be assigned appropriately.
- Weak default values for Kubelet and Pod settings need to be addressed to reduce attack vectors.
- Misconfigurations in Node and Pod settings, along with supply chain vulnerabilities, contribute to attacks on K8s environments.
- Network segmentation, monitoring, and logging are vital for detecting suspicious activity and preventing exploitation.
- Broken authentication mechanisms, along with secrets management failures and centralized policy formats, are common misconfigurations leading to security breaches.