Synopsis
Tenable Research discovered a privilege escalation issue in the Azure Health Bot service via a server-side request forgery (SSRF). This issue allows access to sensitive endpoints internal to the healthbot service itself.
The validator mechanism for FHIR Data Connection endpoints used within Azure Health Bot improperly handled redirect responses from user-supplied endpoints. This allowed researchers access to service internals, such as Azure’s WireServer and components of the internal AKS infrastructure.
MSRC has assigned this issue a severity rating of Important - Elevation of Privilege.
Solution
According to Microsoft, mitigations for this issue have been applied to all affected services. No customer action is required.
Disclosure Timeline
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