HIGH

Ensure cross-account role trust policies are restricted

Cross-account IAM roles should specify exact account IDs in trust policies, not use wildcards or overly permissive patterns that could allow unintended access.

Security Impact

Overly permissive trust policies allow unauthorized accounts to assume roles and access your resources.

How to Remediate

Review all cross-account trust policies. Specify exact AWS account IDs and require external IDs for third-party access. Remove any wildcards.

Affected Resources

AWS::IAM::Role

Compliance Frameworks

SOC 2PCI-DSSNIST 800-53

How TigerGate Helps

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  • Instant Alerts

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  • One-Click Remediation

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  • Compliance Evidence

    Automatically collect audit evidence for SOC 2, PCI-DSS, NIST 800-53 compliance

  • Drift Detection

    Get alerted if this configuration drifts back to an insecure state after remediation

Check Details

Check ID
aws-iam-21
Service
Identity and Access Management (IAM)
Category
Cross-Account Access
Severity
HIGH

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