processing-s3-uploads-with-step-functions
Pass
Audited by Gen Agent Trust Hub on Sep 4, 2026
Risk Level: SAFE
Full Analysis
- Scoped IAM Permissions: The skill follows the principle of least privilege by creating distinct IAM roles for each component (Lambda, ECS, Step Functions, and EventBridge), with policies explicitly restricted to the necessary S3 bucket and service actions.
- Network Egress Hardening: While the Fargate tasks utilize a VPC with public IP assignment, the instructions include specific steps to revoke the default permissive egress rule and replace it with scoped rules allowing only HTTPS and DNS traffic.
- Input Sanitization: The Python scripts for file processing include validation logic to check S3 object keys for potential path traversal patterns (e.g., checking for '..') and verify file sizes, mitigating risks from malformed input data.
- Data Protection and Encryption: The deployment procedures mandate the use of AWS KMS for encrypting both the S3 bucket contents and CloudWatch Log groups, ensuring that data at rest is appropriately protected.
- Operational Monitoring: The workflow integrates resilience features such as Dead Letter Queues (DLQ) for failed EventBridge invocations and CloudWatch alarms for Step Function execution failures, providing visibility into the workflow's health.
Audit Metadata