IAM role allows assumption from anywhere

Severity
High
Service
IAM
Check ID
IAM_ROLE_ALLOWS_ASSUMPTION_FROM_ANYWHERE

What this check finds

The IAM role's trust policy allows any other account to assume it.

Passing looks like: IAM roles not assumable from anywhere.

How to fix it

Update the trust policy to restrict the Principal to specific trusted AWS account IDs, services, or ARNs. Add a Condition with sts:ExternalId for cross-account roles.

AWS console

IAM → Roles → select role → Trust relationships → Edit trust policy.

Compliance controls it is evidence for

A failing result counts against these controls in KloudLytics; a passing one is evidence towards them. How compliance mapping works

Compliance controls mapped to IAM role allows assumption from anywhere
FrameworkControls
PCI-DSS v4.0.1
  • 7.2 Access to system components and data is appropriately defined and assigned
HIPAA Security Rule
  • 164.308(a)(3) Workforce Security — Access Authorization
  • 164.308(a)(4) Information Access Management
NIST SP 800-53 Rev5 (Moderate)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
NIST Cybersecurity Framework 2.0
  • PR.AA-05 Access permissions and authorizations are enforced with least privilege
ISO/IEC 27001:2022 Annex A
  • A.5.15 Access control
  • A.8.2 Privileged access rights

Checked on every scan

KloudLytics runs this check each time it scans a connected AWS account, through a read-only role, and lists every affected resource with its region. On Pro and Business a fix is written for the specific resource rather than the general case above. The exact access it needs

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