HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. XSLT parsing performed by various components are vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag ( ]> could produce XML containing data from the host system. This impacts use cases where org.hl7.fhir.core is being used to within a host where external clients can submit XML. This is related to GHSA-6cr6-ph3p-f5rf, in which its fix (#1571 & #1717) was incomplete. This issue has been addressed in release version 6.4.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat build of Apache Camel 4.4.4 for Spring Boot | RedHat | ca.uhn.hapi.fhir/org.hl7.fhir.dstu2016may | * |
| Red Hat build of Apache Camel 4.4.4 for Spring Boot | RedHat | ca.uhn.hapi.fhir/org.hl7.fhir.dstu3 | * |
| Red Hat build of Apache Camel 4.4.4 for Spring Boot | RedHat | ca.uhn.hapi.fhir/org.hl7.fhir.r4 | * |
| Red Hat build of Apache Camel 4.4.4 for Spring Boot | RedHat | ca.uhn.hapi.fhir/org.hl7.fhir.r5 | * |
| Red Hat build of Apache Camel 4.4.4 for Spring Boot | RedHat | ca.uhn.hapi.fhir/org.hl7.fhir.utilities | * |
Potential Mitigations
Related Attack Patterns
References
- https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html#jaxp-documentbuilderfactory-saxparserfactory-and-dom4j
- https://cwe.mitre.org/data/definitions/611.html
- https://github.com/hapifhir/org.hl7.fhir.core/issues/1571
- https://github.com/hapifhir/org.hl7.fhir.core/pull/1717
- https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-6cr6-ph3p-f5rf
- https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-gr3c-q7xf-47vh