Guide on enumeration of homelab kubernetes

[ajutamangdev]

Hi there, I am trying to experiment enumeration of my homelab kind kubernetes cluster just for learning on how we can enumerate via msfconsole and kuberentes auxiliary module. I followed the instructions from https://docs.metasploit.com/docs/pentesting/metasploit-guide-kubernetes.html.

I am not able to verify my cluster configuration properly at msfconsole. May I know are there any options we can check our validation of our configuration like RHOST, RPORT, TOKEN.

Also has anyone tried using msfconsole for k8 ?

Documentation of K8 lack the instruction for RPORT as well.

[ajutamangdev]

Update:

I found out the lab environment guides as well. I followed all the instruction too. Here is the ref: https://github.com/rapid7/metasploit-framework/blob/master/test/kubernetes/Makefile

I see its not generating the token for full access.

# service-token: ##@tokens Create a Kubernetes service token for the default service account
echo $$(kubectl get secret -n default $$(kubectl -n default get serviceaccount default -o jsonpath="{.secrets[0].name}") -o jsonpath="{.data.token}" | base64 -d)

This case is for admin-token as well when we use make admin-token

I also figure out that Service account tokens are no longer able to generate token from 1.24 k8 version. We have to create manually. https://github.com/kubernetes/kubernetes/pull/108309 cc @adfoster-r7

[adfoster-r7]

Thanks! Do you know what solution we could use here instead? 🤔

[ajutamangdev]

Hi @adfoster-r7 Solution here is we have to create manually token for the service account. I created and whenever I call the api of kube server using curl. It works but it doesn't work with msfconsole.

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[adfoster-r7]

Will have to look into this, or if someone is able to identify the issue that would be great too 🎉