Bidding-Down Attack

Bidding-Down Attack in context

The radio access network is where mobile devices attach to the operator's infrastructure. Attacks in this layer include IMSI catching, rogue base stations and downgrade attacks; defenses rest on mutual authentication, integrity-protected signaling and Open RAN supply-chain hygiene.

Signaling protocols carry the control-plane messages that set up calls, register subscribers and route SMS. SS7, Diameter, GTP-C and SIP are the four dominant families, and interconnect exposure of any of them is treated by GSMA as top-tier telecom risk.

To place Bidding-Down Attack in the wider telecom-security picture, review Telecom Penetration Testing, O-RAN Interfaces (A1, E2, O1, O2), Base Station (BS), Open RAN, Lawful Intercept and P-CSCF Discovery: each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

• Telecom Penetration Testing
• O-RAN Interfaces (A1, E2, O1, O2)
• Base Station (BS)
• Open RAN
• Lawful Intercept
• P-CSCF Discovery
• BTS Impersonation (Fake BTS)
• Firewall

Related topic hubs

• Signaling Firewall Unified SS7/Diameter/GTP/SMS signaling firewall framework.
• Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
• LTE Security Training Training on 4G/LTE core, Diameter, NAS and RRC security.
• SS7 Security SS7/MAP/CAP/SCCP attacks and defenses across 2G/3G interconnect.

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.