All 4G Networks Susceptible to DoS Attacks


New research has uncovered a vulnerability affecting all 4G and some 5G telecommunications networks.

study of the security of diameter networks completed by Positive Technologies found that weaknesses in the diameter-signaling protocol meant that 100% of 4G networks are susceptible to denial of service (DoS) attacks. 

The diameter-signaling protocol is used to authenticate and authorize messages and information distribution in 4G networks. It is a crucial component in LTE, facilitating translation and communication between Internet protocol network elements. 

Researchers found that every attempt they made to infiltrate 28 telecommunications operators across South America, Asia, Europe, and Africa with attacks between 2018 and 2019 was successful.

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