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Ask AWS what a Kubox role can do, and what it must not

Synopsis

Simulates each identity’s expected permissions against the role that carries them, and reports both directions. The denials are the point. Every other tool reports what a principal CAN do; the failure this catches is a principal that can do too much — a runner that has quietly gained kms:Decrypt answers every positive check correctly. Needs only iam:SimulatePrincipalPolicy. IAM is eventually consistent, so a verdict can lag a policy change by a minute or so.

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SEE ALSO

  • kubox admin aws - Render and verify the IAM policies a Kubox deployment needs