services / Azure / API Management user subscription keys

The subscription/API access keys (primary and secondary) associated with an API Management developer/user identity. These keys authenticate API calls made as that user.

These are live, reusable credentials; possession grants the user's authenticated access to the published APIs.

Microsoft.​ApiManagement/​service/​users/​keys/​read

Returns the user's subscription keys (credential material), enabling credential exfiltration and impersonation of that user's authenticated API access.

Risks

1. Account takeover (CRITICAL)
2. Cryptographic exfiltration (CRITICAL)
3. Lateral movement (BOOST)

Scope: CRITICAL

This privilege may grant access to sensitive data from a significant fraction of organizational functions, allow interruption of critical organizational services, or its exploit could lead to significant privilege escalation.

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