Automating AWS Inspector vulnerability triage and ticket creation

For automating AWS Inspector vulnerability triage and ticket creation, you can leverage AWS Security Hub's integration with Amazon Inspector to streamline this process.

Amazon Inspector automatically discovers and continuously scans your EC2 instances, container images in ECR, and Lambda functions for vulnerabilities. When integrated with AWS Security Hub, Inspector findings are automatically correlated and enriched with critical context, helping you prioritize security issues.

To build the lightweight system you're describing:

1. Enable AWS Security Hub and ensure Amazon Inspector is configured as a core capability within it. This integration allows for centralized management of findings.

2. Use Security Hub's automation rules to handle the de-duplication of findings across multiple resources. This helps consolidate identical vulnerabilities (like the same CVE appearing across multiple EC2 instances) into a single actionable item.

3. Set up automated ticket creation by configuring EventBridge to capture Security Hub findings and trigger ticket creation in your tracking system (Linear in your case).

4. Implement automated resolution tracking so that when issues are fixed, the corresponding tickets can be automatically closed.

This approach will help you manage the thousands of vulnerabilities more efficiently by grouping them by root cause rather than by individual instance. It also supports your FedRAMP compliance journey by ensuring vulnerabilities are systematically tracked and addressed.

For a cost-effective implementation, you can combine these AWS native services with open-source tools like Prowler for broader coverage if needed.
Sources
[AG.ACG.10] Automate resolution of findings in tracking systems - DevOps Guidance
Automated Vulnerability Management - Amazon Inspector Features - AWS
Vulnerability scanner For AWS | AWS re:Post
Using Amazon Inspector in your vulnerability management program - AWS Prescriptive Guidance