Free5GC UDM has Improper Input Validation and Generation of Error Messages Containing Sensitive Information

Summary The free5GC UDM component fails to validate the supi path parameter in six GET handlers of the nudm-sdm Subscriber Data Management service. An unauthenticated attacker can inject control characters into the SUPI parameter, causing UDM to forward a malformed request to UDR and return a 500...