CloudFront Distribution should have WAF enabled

AWS WAF gives you control over how traffic reaches your applications by enabling you to create security rules. Make sure you create rules that block common attack patterns, such as SQL injection, cross-site scripting, and rules that filter out specific traffic patterns that you have defined.With AWS Cloudfront-WAF integration enabled you will be able to block any malicious requests made to your Cloudfront Content Delivery Network based on the criteria defined in the WAF Web Access Control List (ACL) associated with the CDN distribution.