Tag: AWS Lambda

Amazon CloudWatch Events enables you to react selectively to events in the cloud as well as in your applications. Specifically, you can create CloudWatch Events rules that match event patterns, and take actions in response to those patterns. CloudWatch Events lets you process both AWS-provided events and custom events (those that you create and inject […]

On the AWS Blog yesterday, Jeff Barr published a new security-related blog post written by AWS Principal Security Engineer Eric Fitzgerald. Here’s the beginning of the post, which is entitled, Scale Your Security Vulnerability Testing with Amazon Inspector: “At AWS re:Invent 2015 we announced Amazon Inspector, our security vulnerability assessment service that helps customers test for […]

Note: As of March 28, 2017,  Amazon EC2 supports tagging on creation, enforced tag usage, AWS Identity and Access Management (IAM) resource-level permissions, and enforced volume encryption. See New – Tag EC2 Instances & EBS Volumes on Creation on the AWS Blog for more information. Access to manage Amazon EC2 instances can be controlled using […]

Note from July 3, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   You can use AWS WAF (a web application firewall) to help protect your web applications from exploits that originate from groups of IP addresses that are known […]

Update on October 24, 2018: Note that if you do not author the Lambda function correctly, this setup can create an infinite loop (in this case, a rule that is fired repeatedly, which can impact your AWS resources and cause higher than expected charges to your account). The example Lambda function I provide in Step […]

Note from July 3, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   Some Internet operations trust that clients are “well behaved.” As an operator of a publicly accessible web application, for example, you have to trust that the clients […]

Note from July 3, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   Internet-facing web applications are frequently scanned and probed by various sources, sometimes for good and other times to identify weaknesses. It takes some sleuthing to determine the […]

Update: The video and slides from the webinar are now available. As part of the AWS Webinar Series, AWS will present Using AWS WAF and Lambda for Automatic Protection on Wednesday, March 2. This webinar will start at 10:00 A.M. and end at 11:00 A.M. Pacific Time (UTC-8). AWS WAF Software Development Manager Nathan Dye […]

Note from July 3, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   One security challenge you may have faced is how to prevent your web servers from being flooded by unwanted requests, or scanning tools such as bots and […]

Note from April 1, 2021: Before implementing the steps in this blog post, please request an EC2 limit increase for “rules per security group.” Ask for 220 rules per security group in the AWS Region where your security groups will be. Note from December 3, 2019: The features and services described in this post have […]