'In massive and groundbreaking research, a team of eleven scientists from the University of Florida, Stony Brook University, and Samsung Research America, have looked into what types of AT commands, or the Hayes command set, are currently supported on modern Android devices. The research team analyzed over 2,000 Android firmware images from eleven Android OEMs such as ASUS, Google, HTC, Huawei, Lenovo, LG, LineageOS, Motorola, Samsung, Sony, and ZTE. They say they discovered that these devices support over 3,500 different types of AT commands, some of which grant access to very dangerous functions. These AT commands are all exposed via the phone's USB interface, meaning an attacker would have to either gain access to a user's device, or hide a malicious component inside USB docks, chargers, or charging stations. Once an attacker is connected via the USB to a target's phone, s/he can use one of the phone's secret AT commands to rewrite device firmware, bypass Android security mechanisms, exfiltrate sensitive device information, perform screen unlocks, or even inject touch events solely through the use of AT commands.' -- source: https://mobile.slashdot.org/story/18/08/26/1910246 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/