CloudFront viewer should be encrypted

Description

Ensure that the AWS CloudFront Content Delivery Network (CDN) for your distribution is using HTTPS to send and receive content.

Rationale

HTTPS ensures encrypted communication for your AWS CloudFront distribution, alleviating the possibility of malicious attacks like packet interception.

Remediation

From the console

Follow the configure CloudFront to require HTTPS between viewers and CloudFront docs to change your Viewer Protocol Policy to HTTPS only.

From the command line

1. Run get-distribution-config with your AWS CloudFront distribution ID to retrieve your distribution’s configuration information.

   get-distribution-config.sh

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       aws cloudfront get-distribution-config
           --id ID000000000000
       

2. In a new JSON file, modify the returned configuration. Set ViewerProtocolPolicy to https-only and save the configuration file.

   https-only.sh

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       {
         "ETag": "ETAG0000000000",
         "DistributionConfig": {
           "Origins": {
             "ViewerProtocolPolicy": "https-only",
             ...
           }
         }
       }
       

3. Run update-distribution to update your distribution with your distribution id, the path of the configuration file (created in step 2), and your etag.

   update-distribution.sh

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       aws cloudfront update-distribution
           --id ID000000000000
           --distribution-config https-only.json
           --if-match ETAG0000000000