6 min read
|
Saved February 14, 2026
|
Copied!
Do you care about this?
The article explores security vulnerabilities in AWS EKS by deploying misconfigured Kubernetes pods. It demonstrates how an attacker can escape from a compromised pod to gain root access on the host and potentially access other services. The focus is on the implications of specific dangerous configurations and their exploitation.
If you do, here's more
The article focuses on Kubernetes security, specifically through a series of experiments using intentionally misconfigured pods. The author begins with a "BadPod" called "Everything Allowed," which features several dangerous configurations that dissolve the isolation between a Kubernetes pod and its host. The setup is on AWS Elastic Kubernetes Service (EKS) with Kubernetes version 1.34, using nodes that run Amazon Linux 2023. The defaults in the Pod Security Admission profile allow these insecure configurations, making it easier to exploit them.
The "Everything Allowed" pod grants extensive privileges, enabling it to access the host's filesystem, network, and processes. By applying the manifest for this pod, the author demonstrates how an attacker with remote code execution can escape the pod's environment and gain root access to the underlying EC2 host. Key security flags, such as `privileged: true` and `hostPath: /`, are highlighted as critical vulnerabilities that facilitate this escape. The experiment successfully verifies that the pod is able to access sensitive directories like `/var/lib/kubelet`, which shouldn't be reachable from a standard container.
Next, the author shifts focus to lateral movement, aiming to demonstrate how an attacker could access other pods or services on the same node. They deploy a "victim" pod configured with standard security features. This setup serves to illustrate how easily an attacker could pivot to other targets within the cluster, emphasizing the risks posed by misconfigured pods and inadequate security measures in Kubernetes environments. The article aims to raise awareness about these vulnerabilities and encourages a more cautious approach to Kubernetes security.
Questions about this article
No questions yet.