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🛡️ IMDSv1 vs IMDSv2 on EC2: SSRF, metrics, risks, and secure migration

¿Qué riesgo existe realmente al mantener IMDSv1 habilitado en una instancia EC2? En 2019, el incidente de Capital One mostró que el acceso no autorizado al EC2 Instance Metadata Service (IMDS) puede…

  • IMDSv1 uses direct HTTP request to 169.254.169.254, while IMDSv2 adds token-based session
  • Verify CloudWatch metrics like MetadataNoToken during migration to ensure no IMDSv1 calls
  • Different tools use different names for same configuration, so understand both options

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