4 ms·
There have been, but iPhones all have the baseband connected via an MMU, so even if you get code execution it's hard to exploit usefully (you can see/modify pac
by danielheath 3y ago
There have been, but iPhones all have the baseband connected via an MMU, so even if you get code execution it's hard to exploit usefully (you can see/modify packets, but nearly everything is encrypted these days).
Some android manufacturers also have an MMU but others connect the baseband directly to main memory, leading to total device takeover when the baseband is compromised.
- iforgotpassword 3y agoI can't find any trace of this with a quick Google search, but I'm super sure I read about the very first iPhones having the baseband module talk to the soc via USB as an isolation measure, since USB didn't have DMA or anything "dangerous". Anybody else heard that, or am I hallucinating?
- numpad0 3y agoUSB? Not UART serial? It seemed a lot of early smartphones did have the modem over AT commands through serial port, like good old DOS computers.