Protocol Vulnerability Threatens Mobile Networks

A protocol that allows millions of customers to use their mobile phones for data applications can also allow criminals to launch denial-of-service (DoS), user impersonation, and fraud cyberattacks. And according to a new report, the protocol, GTP, is as much a vulnerability for certain 5G networks as it is for 2G, 3G, and 4G cellular infrastructures.

The report, built on research by Positive Technologies engineers, says every network researchers tested has vulnerabilities that could allow a user outside the network to instigate a DoS attack, crippling access for legitimate users, stealing network services and bandwidth, or disclosing personal information for users.

The vulnerabilities are in the protocol's architecture rather than its implementation, Positive Technologies says. For defense against exploits, the researchers recommend filtering traffic at the GTP level and implementing the GSMA security recommendations.

Read more here.

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