AWS Web Application Firewall Hands-On

Demo

In this demo, we will:

  1. Create a simple web application using Amazon S3
  2. Set up Amazon CloudFront to serve the S3 website
  3. Create an AWS WAF Web ACL
  4. Configure WAF rules to block SQL injection and XSS attacks
  5. Associate the Web ACL with the CloudFront distribution
  6. Test the WAF setup
  7. Clean up resources

Agenda

Create S3 bucket

waf-demo-924712
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AWS WAF Demo</title>
</head>
<body>
    <h1>Welcome to the AWS WAF Demo</h1>
    <p>This is a simple web application protected by AWS WAF.</p>
</body>
</html>

Index.html

Enable Static website hosting

index.html
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PublicReadGetObject",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::your-bucket-name/*"
        }
    ]
}

Create CloudFront distribution

We will add this manually later  

DemoWebACL

Add rules and rule groups

Add Custom Rule

BlockSQLInjection
BlockXSS

Add 2nd Rule

Set rule priority - optional

Review and create web ACL

Associated AWS resources

Test

Direct

Cross Site Scrpting Attack

https://d1jcqtixiy2rcs.cloudfront.net/?input=<script>alert('XSS')</script>

SQL Injection Attack

https://d1jcqtixiy2rcs.cloudfront.net/?id=1+AND+SLEEP(5)

Clean Up

Delete Web ACL 

Disassociate

Delete Web ACLs

Disable CloudFront Distribution

Delete index.html from S3 Bucket

permanently delete

Delete S3 Bucket

waf-demo-924712

Delete CloudFront Distribution

🙏

Thanks

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AWS Web Application Firewall - Hands-On Demo

By Deepak Dubey

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