The "Least Privilege" principle in Kubernetes, as in other security contexts, is a fundamental security concept that emphasizes restricting permissions and access rights to the minimum level necessary for a specific task or role.
- Limit Access to Nodes
- Implement RBAC Access
- Leverage Kubernetes namespaces for resource isolation.
- Remove Obsolete Packages and Services
- Restrict Network Access
- Restrict Obsolete Kernel Modules
- Identify and Fix Open Ports
- Implement Pod Security Policies
- Prevent resource exhaustion and potential abuse
- Enable Kubernetes audit logging
- Conduct regular security audits and reviews
By adhering to the least privilege principle, Kubernetes administrators and developers can create a more secure and resilient environment, reducing the risk of unauthorized access, privilege escalation, and potential security vulnerabilities.