Kubernetes security best practices

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OWASP Kubernetes Top Ten – K07: Missing Network Segmentation Controls

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Kubernetes has become the de facto standard for container orchestration, empowering organisations to deploy, manage, and scale applications seamlessly. However, its flexibility comes with security challenges, and the OWASP Kubernetes Top Ten identifies the most critical risks organisations face. One such risk, K07: Missing Network Segmentation Controls, is a significant concern that can lead to lateral movement attacks, unauthorised access, and data breaches.
Network segmentation is the practice of logically or physically dividing a network into isolated segments to limit access and control data flow between different workloads. In Kubernetes, network segmentation ensures that different workloads, namespaces, and services only communicate when necessary, reducing attack surfaces and preventing lateral movement.

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OWASP Kubernetes Top Ten – K06: Broken Authentication Mechanisms

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Kubernetes has become the backbone of modern cloud-native infrastructure, enabling organisations to deploy, manage, and scale containerised applications efficiently. However, this technological advancement brings forth a host of security challenges, particularly in authentication and access control. Among the OWASP Kubernetes Top Ten security risks, K06: Broken Authentication Mechanisms stands out as a critical vulnerability that can lead to unauthorised access, privilege escalation, and data breaches.

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OWASP Kubernetes Top Ten – K05: Inadequate Logging and Monitoring

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Kubernetes is a dynamic, distributed system that orchestrates containerised applications at scale. Given its complexity, logging and monitoring are essential for:

Security Incident Detection: Identifying unauthorised access, suspicious activity, or potential breaches.

Performance Optimisation: Detecting bottlenecks, resource exhaustion, or application failures.

Compliance and Auditability: Meeting regulatory requirements such as GDPR, ISO 27001, and SOC 2.

Operational Stability: Ensuring smooth functioning of services, reducing downtime, and proactively resolving issues.

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OWASP Kubernetes Top Ten – K03: Overly Permissive RBAC Configurations

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Kubernetes has revolutionised container orchestration, enabling businesses to scale applications efficiently. However, with great power comes great responsibility, and security remains a crucial concern. One of the most pressing security issues highlighted in the OWASP Kubernetes Top Ten is K03: Overly Permissive RBAC Configurations. This vulnerability can lead to privilege escalation, unauthorised access, and severe security breaches.