epa4all-client: Unauthenticated REST API for Patient Record Writes

Impact

Any network-reachable caller can write arbitrary documents to any patient's electronic
health record accessible by the institution's SMC-B card. In a misconfigured deployment
(e.g., following the production Docker example in the README), this is exploitable from
the local network without credentials.

Patches

• #43

Workarounds

Use network policies or proxies to enforce service-to-service authentication via e.g. mTLS.

• run the service in an isolated network namespace e.g. as Kubernetes sidecar
• service-mesh with corresponding policies

References

• MS-OVIVA-EPA4ALL-8b2af7

Credits

Machine Spirits (contact@machinespirits.de)

• Dr. rer. nat. Simon Weber
• Dipl.-Inf. Volker Schönefeld
• Chiara Fliegner