Description (CNA)
Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. In versions prior to 1.4.2, the UDM incorrectly converts a downstream 400 Bad Request (from UDR) into a 500 Internal Server Error when handling DELETE requests with an empty supi path parameter. This leaks internal error handling behavior and makes it difficult for clients to distinguish between client-side errors and server-side failures. When a client sends a DELETE request with an empty supi (e.g., double slashes // in URL path), the UDM forwards the malformed request to UDR, which correctly returns 400. However, UDM propagates this as 500 SYSTEM_FAILURE instead of returning the appropriate 400 error to the client. This violates REST API best practices for DELETE operations. The issue has been patched in version 1.4.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| free5gc / free5gc | affected < 1.4.2 |
CWE
CWE-209
References
- https://github.com/free5gc/free5gc/security/advisories/GHSA-958m-gxmc-mccm
- https://github.com/free5gc/free5gc/issues/783
- https://github.com/free5gc/udm/pull/79
- https://github.com/free5gc/udm/commit/88de9fa74a1b3f3522e53b4cfa2d184712ffa4ee
ADP enrichment
No English description supplied.
No references supplied.