AWS Config Rule: API Gateway SSL Enabled


Ryan Ware

Last Update vor 4 Tagen

Description: Checks if a REST API stage uses an Secure Sockets Layer (SSL) certificate. This rule is NON_COMPLIANT if the REST API stage does not have an associated SSL certificate.

Trigger type: Configuration changes

AWS Region: All supported AWS regions except Asia Pacific (Jakarta), Asia Pacific (Osaka), Canada West (Calgary) Region

How to Resolve Manually

You can use API Gateway to generate an SSL certificate and then use its public key in the backend to verify that HTTP requests to your backend system are from API Gateway. This allows your HTTP backend to control and accept only requests that originate from Amazon API Gateway, even if the backend is publicly accessible.

There are several steps to be manually completed in order for your Amazon API Gateway REST API stage to be certified with an SSL Certificate.

You can follow AWS' official documentation here in order to complete the following steps to make your Gateway Stage COMPLIANT.

Step One: Generate a client certificate using the API Gateway console

  • Open the API Gateway console 
  • Choose your REST API.
  • In the main navigation pane, choose Client Certificates.
  • From the Client Certificates pane, choose Generate Client Certificate.
  • Optionally, for Edit, choose to add a descriptive title for the generated certificate and choose Save to save the description. API Gateway generates a new certificate and returns the new certificate GUID, along with the PEM-encoded public key.

Step Two: Configure an API to use SSL certificates

  • In the API Gateway console, create or open an API for which you want to use the client certificate. Make sure that the API has been deployed to a stage.
  • Choose Stages under the selected API and then choose a stage.
  • In the Stage Editor panel, select a certificate under the Client Certificate section.
  • To save the settings, choose Save Changes.

Additional test and troubleshooting steps are within the linked AWS Documentation above.

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