Hi Bastien, please try to avoid spamming the mailing list with lots of single-line responses on a single day, thanks.
On Mon, Aug 22, 2022 at 07:53:00PM +0200, Bastien Baranoff wrote: > https://github.com/bbaranoff/telco_story/blob/main/README.md What you are describing is a classic GSM man-in-the-middle attack, combined with a 4G->2G downgrade. I don't see what is new here. It's how MITM on 2G has operated basically forever: You can just 1:1 forward the authentication, but need to crack the Kc before you can talk encrypted from your virtual MS to the real BTS. -- - Harald Welte <[email protected]> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)
