Curriculum Overview: Implementing AWS Network Edge Protection

This curriculum provides a comprehensive path to mastering infrastructure security at the edge within the AWS ecosystem. It focuses on defending against web-based attacks, volumetric DDoS events, and cross-origin security challenges using services like AWS WAF, Shield, and CloudFront.

Prerequisites

Before starting this curriculum, students should possess the following foundational knowledge:

• AWS Cloud Practitioner Knowledge: Basic understanding of AWS global infrastructure (Regions, Availability Zones, and Edge Locations).
• Networking Fundamentals: Understanding of the OSI model (specifically Layers 3, 4, and 7), DNS (Route 53), and HTTP/HTTPS protocols.
• Identity & Access Management (IAM): Ability to configure IAM policies, roles, and service-linked roles.
• S3 & CloudFront Basics: Experience creating S3 buckets and basic CloudFront distributions.

Module Breakdown

Module Objectives

Module 1: AWS WAF & OWASP Top 10 Mitigation

• Define the 3 primary components of WAF: Web ACLs, Rules, and Rule Groups.
• Implement managed rule groups to protect against SQL Injection (SQLi) and Cross-Site Scripting (XSS).
• Configure custom rules for rate limiting to prevent brute-force and HTTP flood attacks.

Module 2: AWS Shield & DDoS Resiliency

• Distinguish between Shield Standard (L3/L4 protection) and Shield Advanced (L7 protection, SRT access).
• Calculate the cost-benefit of Shield Advanced for high-traffic enterprise applications.
• Describe the role of the Shield Response Team (SRT) in manual mitigation of edge cases.

Module 3: CloudFront Edge Security

• Implement security headers (HSTS, X-Frame-Options, CSP) via CloudFront Function or Lambda@Edge.
• Secure origins by requiring custom headers between CloudFront and the backend application.
• Design geolocation and geography-based blocking strategies.

Module 4: Specialty Edge Protections

• Configure S3 Cross-Origin Resource Sharing (CORS) to allow/restrict web fonts and scripts.
• Apply AWS IoT policies to secure message broker communication for edge devices.

Visual Overview of Edge Protection Layers

Success Metrics

To demonstrate mastery of this curriculum, the learner must achieve the following:

1. Zero-Leak Policy: Successfully configure a Web ACL that blocks 100% of a simulated OWASP Top 10 attack suite (e.g., Juice Shop or similar lab environment).
2. Rate Limit Precision: Configure a WAF rule that triggers exactly at a defined threshold (e.g., 100 requests per 5 minutes) without blocking legitimate traffic.
3. CORS Validation: Correctly implement a CORS policy on an S3 bucket that allows a specific domain while blocking unauthorized cross-origin attempts.
4. Architectural Design: Propose a multi-layered defense architecture for a global web app that includes Shield Advanced and CloudFront.

Real-World Application

[!IMPORTANT] Edge security is not just about blocking hackers; it's about maintaining availability and trust.

• E-Commerce Scaling: Using WAF rate limiting and Shield Advanced during Black Friday to prevent competitors from scraping prices or launching DDoS attacks that cause downtime.
• Financial Services: Implementing strict Geofencing and custom CloudFront security headers to comply with regional data sovereignty and security regulations.
• IoT Infrastructure: Protecting a fleet of smart devices by applying restrictive AWS IoT policies at the edge, ensuring only authenticated devices can publish to specific topics.

Defense-in-Depth Visualization

[!TIP] Always use AWS Firewall Manager if you are managing edge protection across multiple accounts in an AWS Organization.