services / Azure / API policies configuration
The policy configuration (XML pipeline of inbound/backend/outbound rules) applied at the whole API level, controlling authentication, authorization, IP filtering, rate limiting, request/response transformation, and backend routing for all of the API's operations.
APIM policies are the gateway's security and traffic-control enforcement layer for an API; they are processing policies, not Azure IAM/RBAC.
Microsoft.ApiManagement/service/workspaces/apis/Policies/write
Setting the API-level policy lets an attacker disable security controls (auth, JWT validation, IP filtering, rate limiting) across every operation, rewrite request handling and backend routing, and inject logging/forwarding that mirrors all traffic flowing through the API to an attacker sink.
Risks
Scope: HIGH
This privilege may grant access to sensitive data from a single organizational function, or allow interruption of a service supporting a single organizational function.
Links
Contributed by P0 Security