Cloud CDN Backend Buckets CDN Should Be Enabled

More Info:

Ensure Cloud CDN backend buckets have CDN enabled.

Risk Level

High

Address

Operational Maturity, Performance Efficiency, Reliability, Security

Compliance Standards

CBP

Triage and Remediation

Remediation

Using Console

Using CLI

To remediate the misconfiguration “Cloud CDN Backend Buckets CDN Should Be Enabled” for GCP using GCP CLI, follow these steps:

Open the Cloud Shell in the GCP console.
Run the following command to enable the Cloud CDN API:
```
gcloud services enable cdn.googleapis.com
```
Run the following command to create a Cloud Storage bucket:
```
gsutil mb -c standard -l <location> gs://<bucket-name>
```
Replace <location> with the location where you want to create the bucket (e.g. us-central1) and <bucket-name> with the name of your bucket.
Run the following command to enable the Cloud CDN for the bucket:
```
gsutil web set -m index.html -e 404.html gs://<bucket-name>
```
This command sets up the bucket as a static website and enables the Cloud CDN for it.
Verify that the Cloud CDN is enabled for the bucket by running the following command:
```
gcloud compute backend-buckets describe <backend-bucket-name>
```
Replace <backend-bucket-name> with the name of your backend bucket. Look for the cdnPolicy field in the output. It should show "cacheMode": "CACHE_ALL_STATIC" which confirms that the Cloud CDN is enabled for the bucket.
Repeat steps 3-5 for each backend bucket that needs the Cloud CDN enabled.

By following these steps, you have successfully remediated the misconfiguration “Cloud CDN Backend Buckets CDN Should Be Enabled” for GCP using GCP CLI.

Using Python

To remediate the misconfiguration “Cloud CDN Backend Buckets CDN Should Be Enabled” in GCP using Python, you can follow these steps:

Import the necessary libraries:

from google.cloud import compute_v1
from google.protobuf.field_mask_pb2 import FieldMask

Set up the GCP credentials:

# Replace [PATH_TO_YOUR_CREDENTIALS_JSON] with the path to your GCP credentials JSON file.
import os
os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = "[PATH_TO_YOUR_CREDENTIALS_JSON]"

Initialize the Compute Engine client:

client = compute_v1.ComputeClient()

Get the current configuration of the backend bucket:

# Replace [BACKEND_BUCKET_NAME] with the name of the backend bucket.
backend_bucket_name = "[BACKEND_BUCKET_NAME]"
backend_bucket = client.backend_buckets.get(project="[PROJECT_ID]", backend_bucket=backend_bucket_name)

Update the configuration to enable CDN:

# Set the CDN configuration.
backend_bucket.cdn_policy.cache_key_policy.include_host = True
backend_bucket.cdn_policy.cache_mode = compute_v1.BackendBucketCdnPolicy.CacheMode.CACHE_ALL_STATIC
backend_bucket.cdn_policy.signed_url_key_names.append("my-key-name")

# Update the backend bucket.
update_mask = FieldMask(paths=["cdn_policy"])
updated_backend_bucket = client.backend_buckets.update(project="[PROJECT_ID]", backend_bucket=backend_bucket_name, backend_bucket_resource=backend_bucket, update_mask=update_mask)

Verify that CDN is enabled:

print(updated_backend_bucket.cdn_policy.cache_mode)

This should output “CACHE_ALL_STATIC”, indicating that CDN is enabled for the backend bucket.Note: You will need to replace [PROJECT_ID], [BACKEND_BUCKET_NAME], and “my-key-name” with the appropriate values for your GCP project and backend bucket.

Additional Reading:

https://cloud.google.com/cdn/docs/using-cdn

GCP Introduction

GCP Pricing

GCP Threats

GCP Misconfigurations

Resources

GCP Threats

Cloud CDN Backend Buckets CDN Should Be Enabled

More Info:

Risk Level

Address

Compliance Standards

Triage and Remediation

Remediation

Additional Reading:

GCP Introduction

GCP Pricing

GCP Threats

GCP Misconfigurations

Resources

GCP Threats

​More Info:

​Risk Level

​Address

​Compliance Standards

​Triage and Remediation

​Remediation

​Additional Reading:

More Info:

Risk Level

Address

Compliance Standards

Triage and Remediation

Remediation

Additional Reading: