AWS Firewall Manager

AWS Firewall Manager is a security management service that allows you to centrally configure, manage, and enforce firewall rules across multiple AWS accounts and resources. It helps organizations maintain security consistency by applying security policies at scale.

✔ Automates firewall rule deployment across accounts and regions. ✔ Centrally manages AWS Network Firewall, AWS WAF, and Shield Advanced policies. ✔ Simplifies compliance enforcement by ensuring all accounts have the required security settings. ✔ Detects misconfigurations and ensures new resources comply with security policies.

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🔹 How AWS Firewall Manager Works

1️⃣ Administrator sets security policies in AWS Firewall Manager. 2️⃣ Firewall Manager applies these policies across linked AWS accounts. 3️⃣ New resources (ALB, API Gateway, CloudFront, VPCs, etc.) automatically inherit security rules. 4️⃣ Continuous monitoring detects and remediates non-compliant resources.

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🔹 AWS Firewall Manager Supported Services

Service	What Firewall Manager Can Do
AWS WAF	Automatically applies WAF rules to ALBs, API Gateway, and CloudFront distributions.
AWS Shield Advanced	Enables DDoS protection across multiple accounts.
AWS Network Firewall	Deploys and manages firewall rules for VPCs at scale.
VPC Security Groups	Audits security group rules and removes overly permissive access.

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🔹 SecureCart’s Use of AWS Firewall Manager

SecureCart operates multiple AWS accounts and needs a consistent security posture across environments.

🔹 Use Case 1: Enforcing AWS WAF Rules for All API Endpoints

• SecureCart deploys multiple API Gateways for microservices.

• AWS Firewall Manager ensures that all API endpoints have WAF rules applied to prevent SQL injection, XSS, and bot attacks.

🔹 Use Case 2: Protecting All AWS Accounts from DDoS Attacks

• SecureCart uses AWS Shield Advanced for DDoS protection.

• AWS Firewall Manager automatically applies Shield protection to every ALB and CloudFront distribution across accounts.

🔹 Use Case 3: Managing AWS Network Firewall Across VPCs

• SecureCart has separate VPCs for development, staging, and production.

• AWS Firewall Manager deploys AWS Network Firewall policies to protect traffic between VPCs.

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🔹 Key Benefits of AWS Firewall Manager

✅ Centrally manages firewall rules across multiple AWS accounts. ✅ Ensures security consistency across new and existing resources. ✅ Automatically protects new resources as they are created. ✅ Enforces compliance by detecting and fixing security misconfigurations. ✅ Reduces security overhead by automating policy enforcement.

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🔹 Common Mistakes & How to Avoid Them

⚠ Not enabling AWS Organizations integration → AWS Firewall Manager requires AWS Organizations to manage security policies across multiple accounts. ⚠ Overly restrictive policies → Ensure rules allow necessary application traffic. ⚠ Not monitoring compliance violations → Set up AWS Security Hub integration for continuous monitoring.

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🚀 Summary

✔ AWS Firewall Manager helps SecureCart enforce WAF, Network Firewall, and Shield Advanced policies across all AWS accounts. ✔ Automatically applies security rules to new resources, ensuring compliance and reducing manual effort. ✔ Best for organizations with multiple AWS accounts that need centralized security management.