K8s metadata server enabled remediation

Using Console

Using CLI

To remediate the misconfiguration “Ensure The GKE Metadata Server Is Enabled” for GCP using GCP CLI, you can follow the below steps:

Open the Cloud Shell in the GCP Console.
Run the following command to enable the GKE Metadata Server:

gcloud container clusters update CLUSTER_NAME --enable-metadata-concealment=false

Replace CLUSTER_NAME with the name of your GKE cluster.

Verify that the GKE Metadata Server is enabled by running the following command:

gcloud container clusters describe CLUSTER_NAME --format="value(masterAuth.clusterCaCertificate)"

If the output shows a valid cluster certificate, then the GKE Metadata Server is enabled.

Repeat the above steps for all the GKE clusters in your GCP project.

By following the above steps, you can successfully remediate the misconfiguration “Ensure The GKE Metadata Server Is Enabled” for GCP using GCP CLI.

Using Python

To remediate the misconfiguration “Ensure The GKE Metadata Server Is Enabled” for GCP using Python, follow these steps:

Install the required Python libraries:

pip install google-auth google-auth-oauthlib google-auth-httplib2 google-cloud-container

Authenticate with GCP:

from google.oauth2 import service_account
from google.cloud import container_v1

credentials = service_account.Credentials.from_service_account_file('<path-to-service-account-key.json>')
client = container_v1.ClusterManagerClient(credentials=credentials)

Get the cluster:

project_id = '<your-project-id>'
zone = '<your-zone>'
cluster_id = '<your-cluster-id>'

cluster = client.get_cluster(project_id, zone, cluster_id)

Check if the GKE Metadata Server is enabled:

if cluster.private_cluster_config.enable_private_endpoint:
    print('GKE Metadata Server is already enabled')
else:
    print('GKE Metadata Server is not enabled')

Enable the GKE Metadata Server:

cluster.private_cluster_config.enable_private_endpoint = True

update_request = container_v1.types.UpdateClusterRequest(
    project_id=project_id,
    zone=zone,
    cluster_id=cluster_id,
    update=cluster,
)

operation = client.update_cluster(update_request)

print('Waiting for operation to complete...')
operation.result()

print('GKE Metadata Server has been enabled')

Note: Make sure to replace <path-to-service-account-key.json>, <your-project-id>, <your-zone>, and <your-cluster-id> with the appropriate values.

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GCP Threats

K8s metadata server enabled remediation

Triage and Remediation

Remediation

GCP Introduction

GCP Pricing

GCP Threats

GCP Misconfigurations

Resources

GCP Threats

​Triage and Remediation

​Remediation

Triage and Remediation

Remediation