My Kubernetes exploration brought me to the topic of privileged pods. Privileged pod, or container running in privileged mode is a configuration option of K8s deployment which can be useful, but can also be dangerous.
This is an excerpt of deployment specification where privileged mode defined.
kind: Deployment
...
spec:
template:
spec:
containers:
- name: ...
image: nginx:1.14.2
securityContext:
privileged: true
Found this article:
https://www.cncf.io/blog/2020/10/16/hack-my-mis-configured-kubernetes-privileged-pods/
which explains about what's the true intent of running privileged pod and the security risk it caused, including how to exploit privileged pod to do malicious intent.