CyberRota Analysis
AI-GeneratedThe vulnerability affects free5GC versions 4.2.2 and earlier, specifically within the NRF RegisterNFInstance handler, which improperly validates NF Profiles, allowing attackers with SBI access to submit malformed profiles. This can lead to the exposure of sensitive credentials, manipulation of service discovery, and potential denial of service across trusted network functions. Organizations using affected versions of free5GC should prioritize this issue to mitigate risks associated with unauthorized network access and control-plane disruptions.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
free5GC is an open-source implementation of the 5G core network. In 4.2.2 and earlier, the NRF RegisterNFInstance handler at PUT /nnrf-nfm/v1/nf-instances/{nfInstanceID} accepts NF Profiles without enforcing UUID format, nfStatus enum values, heartBeatTimer ranges, mandatory profile fields, or nfServices.ipEndPoints address constraints. The invalid profiles are persisted in the MongoDB NfProfile collection and returned by NFDiscover, allowing an attacker with SBI access to advertise attacker-controlled network-function endpoints and redirect control-plane signaling. This can expose credentials and signaling, alter service discovery integrity, and deny service across network functions that trust the NRF. This issue is fixed in version 4.2.3.