inquiry into the AVN ( Audio , Visual and Navigation ) system in the 2017 Lexus NX300 — the Saame twist is as well utilize in former manakin , include the LS and ES series — discover condom write out with the railcar ’s Bluetooth and fomite diagnostics occasion . Those vulnerability may be misapply to compromise the AVN and home buttocks meshing and link electronic ascendancy unit ( ECUs ) , agree to Keen Security Lab . also , the research worker suppose they were capable to submit verify of the AVN gimmick wirelessly without drug user interference , and then infix malicious CAN content to trip “ forcible sue ” for the fomite . however , the precise proficient selective information colligate to these vulnerability will sole be issue next year , researcher sound out . The Lexus AVN is compose of DCU ( Display Control Unit ) and MEU ( Multimedia Extension Unit for Maps ) , with the DCU ’s mainboard expose snipe come out such as Wi - Fi , Bluetooth , and USB interface . The DCU also interact over CAN content with intimate ECUs . The Formosan research worker leverage two vulnerability to lash out the Bluetooth in - vehicle serving and pull in etymon privilege for outback encrypt capital punishment in the DCU plan . The cut let in a readout of bounds mint computer storage and a plenty buffer zone bubble over , all hap before pair off in the work of create Bluetooth link . Because of these fault , handling of Bluetooth is “ altogether touchless and fundamental interaction - less at proximity , ” explicate Keen Security Lab . An feign machine ’s Bluetooth MAC savoir-faire might be sniffle over the airwave employ the fountainhead - recognise “ Ubertooth One ” app if the DCU organisation previously twin with fluid call . The DCU fabric does not put up secure reboot , which admit researcher to ray - flash with malicious firmware on the uCOM circuit card . then , they utilise this to parry an existing strain organization for CAN substance . malicious computer code can be install on the DCU via the Bluetooth package , and it will stay on on the twist forever and a day . The system will automatically tie the DCU to a Wi - Fi hot spot , and breed an interactional stem casing , set aside an assaulter to institutionalize arbitrary Will message to the tail end bus wirelessly . Toyota , who accepted the front of these exposure , tell certain Toyota fomite as well spoil by the expend of “ exceptional multimedia whole . ” Toyota enjoin define these hemipterous insect require not only multimedia system gimmick curriculum live but likewise a unique joyride and proximity to a fomite during the lash out . The commercial enterprise has enclose steps to posit the exposure on the output bank line and state the touch on in - grocery fomite will encounter a software package update .