Synopsis
Tenable Research discovered a privilege escalation issue in the Azure Health Bot service via a server-side request forgery (SSRF). This issue allowed researchers access to the service’s internal metadata service (IMDS) and subsequently granted access tokens allowing for the management of cross-tenant resources.
The Data Connector utilities used within Azure Health Bot’s Scenario Editor improperly handled redirect responses from user-supplied endpoints. This allowed researchers access to Azure’s IMDS, which gave management access to the internal Microsoft subscription ID governing resources of customers utilizing the Health Bot service.
MSRC has assigned this issue a severity rating of Critical - 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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