CyberGlossary

Cloud Security

CIEM (Cloud Infrastructure Entitlement Management)

Also known as: Cloud entitlement management

Definition

A discipline and tooling category that discovers, analyzes, and right-sizes the identities and permissions that exist inside cloud environments.

Public clouds expose thousands of fine-grained permissions across IAM users, roles, service principals, federated identities, and workload identities. CIEM tools inventory every effective permission, map it against actual usage, and surface excessive entitlements — for example, an IAM role granted s3:* but only ever using GetObject. They also detect privilege-escalation paths (PassRole, AssumeRole chains), unused identities, and cross-account trust risks. Outcomes typically feed automated remediation, scoped roles, and just-in-time elevation. CIEM is a core pillar of CNAPP, especially valuable in multi-cloud environments where permission models differ between providers.

Examples

  • Detecting a developer role that can iam:PassRole into a production admin role.
  • Generating a least-privilege IAM policy from 90 days of CloudTrail activity.

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