AWS Security Blog

Tag: AWS Lambda

How to Detect and Automatically Revoke Unintended IAM Access with Amazon CloudWatch Events

AWS Identity and Access Management (IAM) enables you to create IAM users and roles in your account, each with a specific set of permissions. For example, you can create administrative users who have access to all AWS APIs (also called actions), and you can create other users who have access to only a specific subset […]

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How to Reduce Security Threats and Operating Costs Using AWS WAF and Amazon CloudFront

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 […]

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How to Use AWS WAF to Block IP Addresses That Generate Bad Requests

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 […]

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Register for and Attend This March 2 Webinar—Using AWS WAF and Lambda for Automatic Protection

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 […]

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How to Configure Rate-Based Blacklisting with AWS WAF and 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.   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 […]

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How to Automatically Update Your Security Groups for Amazon CloudFront and AWS WAF by Using AWS Lambda

Updated: December 9, 2016 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) gives you control over which traffic to allow or block by defining customizable web security rules. In conjunction with AWS WAF, […]

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In Case You Missed These: Recent AWS Security Blog Posts

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 […]

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How to Receive Alerts When Specific APIs Are Called by Using AWS CloudTrail, Amazon SNS, and AWS Lambda

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 […]

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