Curriculum Overview: Evaluating Compliance of AWS Resources (SCS-C03)
Evaluate the compliance of AWS resources
Curriculum Overview: Evaluating Compliance of AWS Resources
This curriculum is designed to master the skills required for Domain 6.3 of the AWS Certified Security - Specialty (SCS-C03) exam. It focuses on the continuous monitoring, auditing, and remediation of AWS resource configurations to maintain a robust security posture.
Prerequisites
Before beginning this module, learners should have a solid grasp of the following foundational AWS concepts:
- Identity and Access Management (IAM): Understanding roles, policies, and service-linked roles.
- AWS Organizations: Knowledge of multi-account structures and Service Control Policies (SCPs).
- Logging & Monitoring: Familiarity with AWS CloudTrail (for tracking API calls) and Amazon CloudWatch (for alerting).
- Basic Security Concepts: Understanding of encryption at rest/transit and the Principle of Least Privilege.
Module Breakdown
| Module | Topic | Complexity | Duration |
|---|---|---|---|
| 1 | AWS Config Foundations | Intermediate | 2 Hours |
| 2 | Config Rules & Remediation | Advanced | 3 Hours |
| 3 | Multi-Account Compliance | Advanced | 2 Hours |
| 4 | Audit Manager & Evidence | Intermediate | 1.5 Hours |
| 5 | Architectural Compliance | Intermediate | 1.5 Hours |
Learning Objectives per Module
Module 1: AWS Config Foundations
- Enable the Configuration Recorder: Set up the recording of resource changes and store configuration items (CIs) in S3.
- Resource Timeline: Navigate the history of a resource to identify exactly when and how a configuration drift occurred.
- Relationship Mapping: Visualize how changes in one resource (e.g., an EC2 security group) affect dependent resources (e.g., an EC2 instance).
Module 2: Config Rules & Remediation
- Managed vs. Custom Rules: Deploy AWS-managed rules for common best practices or author custom rules using AWS Lambda or Guard policy language.
- Evaluation Modes: Contrast Detective (post-deployment) vs. Proactive (pre-deployment) compliance checks.
- Auto-Remediation: Configure AWS Systems Manager (SSM) Automation documents to fix non-compliant resources automatically.
Module 3: Multi-Account Compliance
- Aggregators: Centralize compliance data from multiple AWS accounts and Regions into a single "Security Account."
- Conformance Packs: Deploy a collection of Config rules and remediation actions as a single entity across an organization using CloudFormation StackSets.
Module 4: Audit Manager & Evidence
- Evidence Collection: Automate the gathering of evidence to prove compliance with frameworks like PCI-DSS, SOC2, or HIPAA.
- AWS Artifact: Access and download AWS’s own third-party audit reports for shared responsibility verification.
Module 5: Architectural Compliance
- Well-Architected Tool: Perform reviews to identify high-risk issues (HRIs) based on the Security Pillar.
- Security Hub: Map Config findings to the AWS Foundational Security Best Practices (FSBP) standard.
Visual Anchors
The AWS Config Evaluation Loop
Compliance Service Ecosystem
\begin{tikzpicture}[node distance=2cm, every node/.style={rectangle, draw, rounded corners, minimum width=3cm, minimum height=1cm, align=center}]
\node (config) [fill=orange!20] {AWS Config\$Resource History)};
\node (sechub) [right of=config, xshift=3cm, fill=red!20] {Security Hub\$Security Score)};
\node (audit) [below of=config, yshift=-1cm, fill=blue!20] {Audit Manager\$Evidence)};
\draw[<->, thick] (config) -- (sechub) node[midway, above] {Findings};
\draw[->, thick] (config) -- (audit) node[midway, left] {Snapshots};
\draw[->, thick] (sechub) -- (audit) node[midway, right] {Assessments};\end{tikzpicture}
Success Metrics
To demonstrate mastery of this curriculum, the learner must be able to:
- Configuration Recovery: Successfully restore a resource to a previous "Known Good State" using the AWS Config timeline.
- Rule Deployment: Author a custom Lambda-based Config rule that flags S3 buckets missing a specific mandatory tag (e.g.,
Environment). - Remediation Latency: Achieve an auto-remediation time of under 5 minutes from the moment a non-compliant change is detected.
- Audit Readiness: Generate a "Compliance Assessment Report" in Audit Manager that maps 100% of required evidence to a specific regulatory control.
Real-World Application
Evaluating compliance is not just an exam requirement; it is a critical business function:
- Cloud Security Engineer: Automating the "guardrails" that prevent developers from accidentally opening databases to the public internet.
- Compliance Officer: Moving from "Point-in-Time" audits (manual checks every 6 months) to "Continuous Auditing" (real-time visibility).
- Incident Responder: Using the Config Timeline as a forensic tool to see what an attacker changed during a breach.
[!IMPORTANT] AWS Config is a Regional service. To achieve global compliance visibility, you must enable it in every active Region and use an Aggregator to centralize the findings.
[!TIP] Use Proactive Rules within your CI/CD pipelines to stop non-compliant CloudFormation templates from ever being deployed, shifting security "to the left."