WhizBangLambdaFix: where AWS Misconfigurations...
summary
An AWS Lambda framework that auto-remediates misconfigurations uses CloudTrail + EventBridge triggers, two minimal cross-account IAM roles and per-playbook remediation roles to run scheduled (daily) and real‑time fixes. Examples: delete unused EBS after 45 days, convert EC2 to IMDSv2 (CLI fixes cover 43% of cases vs CloudFormation 50% Terraform 2%), quarantine manually created EC2s by tightening security groups and attaching deny IAM policies, and remove Route53/CNAME/CloudFront links to prevent S3 subdomain takeover. Deployments take months, avoid touching production, and report measurable cost and attack‑surface reduction (33% idle DBs, Lambda $1/month vs Config $50k/month).
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chapters (13)
- 0:00Introduction and motivation
- 2:54Cloud environment landscape
- 4:21Dual security approach
- 6:44Auto-remediation framework
- 9:48Scheduled vs real-time fixes
- 11:57EBS remediation playbook
- 13:59Quarantining manual actions
- 15:59Addressing residual risks
- 18:37Reducing lateral movement
- 20:41Framework comparisons
- 22:48Practical remediation list
- 26:53Metrics and lessons learned
- 29:35Q&A session
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