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Sni5Gect research crew targets sweet spot during device / network handshake pause Security boffins have released an open source tool for poking holes in 5G mobile networks, claiming it can do up- and downlink sniffing and a novel connection downgrade attack - plus "other serious exploits" they're keeping under wraps, for now.…

Trend Micro Research, News and Perspectives 1 year, 10 months ago

Vulnerabilities in Cellular Packet Cores Part IV: Authentication

Our research reveals two significant vulnerabilities in Microsoft Azure Private 5G Core (AP5GC). The first vulnerability (CVE-2024-20685) allows a crafted signaling message to crash the control plane, leading to potential service outages. The second (ZDI-CAN-23960) disconnects and replaces attached base stations, disrupting network operations. While these issues are implementation-specific, their exploitation is made possible by a systemic weakness: the lack of mandatory authentication procedures between base stations and packet-cores.