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Questions tagged [amazon-waf]

AWS WAF is a web application firewall service that monitors web requests for Amazon CloudFront distributions and restricts access to content. Use AWS WAF to block or allow requests based on conditions, such as the IP addresses that requests originate from or values in the requests.

Documentation: https://aws.amazon.com/documentation/waf/

258 questions
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AWS WAF Regexp issue with lookahead

I am building a regexp for AWS WAF using a negative lookahead. joe(?!(ann|jen)) However, I've got back the following error from WAF console WAFInvalidParameterException: Error reason: The parameter contains formatting that is not valid., field:…
channa ly
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AWS WAF Create an ACL and rule to allow access to only one country to access the API gateway

I want to create a json format cloud formation template that creates an ACL and rule in WAF to allow only the United States users to access the API gateway. I have the following code so far but it gives an error ("Encountered unsupported property…
bex
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How to enable logging for WebACL in AWS WAF using Cloudformation?

I was going through AWS WAF Cloudformation documentation and I couldn't see a way to enable logging. I can enable logging by console, however I want to do it by Cloudformation so that it is enabled by default in new stacks. How do I enable logging…
c2tarun
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How to apply ip based rate limiting in AWS serverless

Let's say I am running a serverless REST API in AWS. I therefore have my REST API implemented in an AWS lambda and the lambda is exposed over HTTP using an API Gateway or an Application Load Balancer. Then, I want to protect my API from potential…
mabead
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WAF Standard Rules: Do we really have to configure everything manually?

I am trying to configure a WAF with my Api Gateway and i am surprised AWS is not offering templates of rules (such as the owasp top 10). For SQL injections for example, everybody use the same rules am i wrong? Do you know a way to import the main…
Ludo
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How can we compress image from Image location and move file to Amazon s3 in php with WAF blocks

I have an online image location(URL) which I have to upload to Amazon S3. If I upload an image which has only 1-2 MB size the WAF not block the image but for the large size image like greater than 5-6 MB than the Amazon WAF blocks the image and…
Dharmesh Mertwal
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How to authorise a role to perform "execute-api:Invoke"?

I'm attempting to move a suite of end-to-end tests so that they are fully contained within AWS. I've done this through code build and gotten everything running up to the point of running the tests, which invoke an API to reset the database before…
Jay Cork
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Blocking IP's using AWS WAF so that only users connected to a VPN can access CloudFront

Goal: Use AWS WAF to filter out traffic that hits CloudFront so that only users connected to the OpenVPN network can access the web application. OpenVPN assigns any connected user to an IP in the network range of 172.xx.yyy.z/a. I therefore…
mysterykid
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Use a Web Application Firewall (WAF) with an EC2 instance

I have a web app running on my Amazon EC2 instance. How can I integrate a Web Application Firewall with my EC2? I have tried setting up the WAF, but it can only be associated with either a CloudFront distribution or an Elastic Load Balancer. Do I…
qwerty
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AWS Migrate Classic Load Balancer to Application Load Balancer

I am looking for integrating WAF in my existing server setup, since I have Classic Load Balancer (with EC2 instances) which does not support WAF I need to migrate to Application Load Balancer. Is it possible to migrate the existing Classic Load…
Zlahc
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Associate WAF with CloudFront distribution in China

Looks like it's just not possible, but I still want to ask. There is no option in UI which allows you to do that, also you can't create WebACL in WAF using scope CLOUDFRONT, only REGIONAL is available. But ALL docs in China is saying you can do…
orlovw
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Does AWS WAF any additional protection when I am serving only images from CloudFront (from S3)?

I have CloudFront serving only images - stored in S3 but served through CloudFront. The Web application is hosted separately. Do I need AWS WAF? Or What does WAF add when only images served?
Sun
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WAFv2 Rule: How so specify word list when using "Contains Words" option

I am building a WAFv2 rule. I have list of words to allow. It is not clear from the documentation: How do I specify a word list? Is it comma separated ?, quoted, not quoted, etc. What is the correct syntax here?
jlo-gmail
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How to handle Burst requst in AWS WAF

There is a use case where we need to implement rate limit for our AWS rest API on ECS . Initially we have used NLB but because the requirement came to use rate limit so that users can not damage our AWS resources . Resource flow is WAF <--> ALB…
Sudarshan kumar
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What is the difference between Source IP address and IP address in header in WAF

In Web Application Firewall,I set IP range group,I'd like to restrict access only from these Ip groups. In following snapshot,I can select Source IP address and IP address in header,But what is the difference between them? I confused in which case…
Heisenberg
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