Ace Your CCSK Cloud Security Knowledge Exam

In the Infrastructure as a Service (IaaS) model, the cloud provider delivers the basic infrastructure components such as virtual machines, storage, and networking resources. However, the customer is responsible for managing the operating system, applications, and any software configurations that run on the infrastructure. This gives the customer more control over the environment while still benefiting from the cloud provider's hardware and scalability.

The provider manages the operating system, runtime, and infrastructure, and the customer is only responsible for managing the applications. NaaS focuses on network services, not the management of operating systems and applications. The provider manages everything, including the operating system and applications, and the customer simply uses the software.

Misconfiguration is one of the most prevalent risks in serverless and container-based environments. Given the complex nature of container orchestration (e.g., Kubernetes), CI/CD pipelines, and ephemeral infrastructure, simple missteps—such as overly permissive roles or exposed ports—can lead to significant vulnerabilities.

These workloads require strict configuration management, automated scanning, and secure defaults to prevent breaches. Unlike traditional servers, containers and functions spin up and down rapidly, making traditional visibility tools insufficient.

This is discussed thoroughly in Domain 8: Virtualization and Containers, where the CCSK guidance identifies misconfiguration as a leading cause of cloud-native exploitation.