5Ghoul – #5G NR #Attacks
In the field of wireless network security

#5Ghoul – #5G NR #Attacks
In the field of wireless network security, which includes radio networks, Baseband Exploitation is one of the special cases that offensive security researchers always pay special attention to.

For this reason, the design and technology researchers of Sigapore University, by designing a Fuzzer for the firmware of 5G network modems of mobile phones (Qualcomm – Dimensity), have been able to discover more than 10 vulnerabilities that can have a denial effect, these vulnerabilities affect 626 phone models. They affect the companion.

The summary of the attack scenario is that the attacker can create a Rogue Base Station or a legitimate telecommunication tower by means of an SDR of the USRP B210 type, he can perform fuzzing operations in the network layer and RRC-MAC-NAS-RLC protocols and many modems affected by DoS and Downgrade attacks.

The main problem is that the internal modems of smartphones are not properly applied due to having different vendors.