New security flaws affect 4G and 5G networks2019-02-27 14:49 by DanielaTags: 4G, 5G
A group of academics from Purdue University and the University of Iowa have discovered three new security flaws in 4G and 5G networks which they say could be used by attackers to intercept phone calls and track the locations of smartphone users. The three flaws are called Torpedo, Piercer and IMSI-Cracking. Torpedo is used to track the victim's location, and it works by calling, and cancelling, multiple calls in a short period. That can trigger a paging message which the attackers can use to track the location. The Piercer attack allows attackers to determine your phone's unique international mobile subscriber identity (IMSI) on a 4G network. Both the Piercer and the IMSI-Cracking attack allow attackers to brute-force encrypted IMSI numbers in both 4G and 5G networks. One of the researchers claims that four major networks – AT&T, Verizon, Sprint, and T-Mobile – are affected by Torpedo, and one US network was also vulnerable to Piercer attack. He claims that networks in Europe and Asia are also vulnerable. He also explains that these attacks can be carried with radio equipment worth only $200. Read more -here-
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