Tag: AWS Lambda

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 […]

Update on June 14, 2018: We removed an out-of-date code sample. Update on August 23, 2018: We revised the “Configure your Lambda function’s trigger” procedure. Amazon CloudFront can help you increase the performance of your web applications and significantly lower the latency of delivering content to your customers. Recently announced, AWS WAF (a web application firewall) […]

Just in case you missed any of the AWS Security Blog posts from the last month or so, we have summarized and linked to them in this blog post. The linked posts are shown in reverse chronological order (most recent first), and the subject matter ranges from privacy and data security at Amazon to AWS […]

Let’s face it—not all APIs were created equal. For example, you may be really interested in knowing when any of your Amazon EC2 instances are terminated (ec2:TerminateInstance), but less interested when an object is put in an Amazon S3 bucket (s3:PutObject). In this example, you can delete an object, but you can’t bring back that […]