Ella Core is a 5G core designed for private networks. Prior to 1.10.0, a radio with a valid NG Setup can send a forged PDUSessionResourceSetupResponse carrying any UE's AMF-UE-NGAP-ID. Ella Core does not verify the message arrived on the SCTP association bound to that UE's logical NG-connection, then creates a GTP tunnel towards that radio. This vulnerability is fixed in 1.10.0.
Exploitability
AV:AAC:LPR:NUI:NScope
S:UImpact
C:LI:NA:H7.1/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HAccess Control
Other