{"id":112103,"date":"2023-12-10T09:10:17","date_gmt":"2023-12-10T07:10:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-bluetooth-stekah-linux-macos-android-i-ios"},"modified":"2023-12-10T09:10:17","modified_gmt":"2023-12-10T07:10:17","slug":"uyazvimost-v-bluetooth-stekah-linux-macos-android-i-ios","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/uyazvimost-v-bluetooth-stekah-linux-macos-android-i-ios","title":{"rendered":"Ranljivost v Bluetooth stackih Linuxa, macOS-a, Androida in iOS-a","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

<\/p>\n

Marc Newlin, ki je odkril ranljivost MouseJack<\/a> pred sedmimi leti, je razkril informacije o obdobni ranljivosti (CVE-2023-45866)<\/a>, ki vpliva na Bluetooth sklade Android, Linux, macOS in iOS. Ta ranljivost omogo\u010da zamenjavo pritiskov na tipke z simulacijo aktivnosti vhodne naprave, povezane prek Bluetootha. S dostopom do vnosa s tipkovnice lahko napadalec izvaja razli\u010dna dejanja, kot so izvajanje ukazov v sistemu, namestitev aplikacij in preusmeritev sporo\u010dil.<\/p>\n

<\/noindex><\/noindex> <\/p>\n

Ranljivost je posledica dejstva, da imajo gostiteljski gonilniki HID (Human Interface Device) za Bluetooth naprave na\u010din, ki omogo\u010da oddaljenemu perifernemu napravi, da ustvarja in vzpostavlja \u0161ifrirane povezave brez overitve. Tak\u0161ne povezane naprave lahko prena\u0161ajo sporo\u010dila s tipkovnice, in HID sklad jih obdeluje, kar odpre mo\u017enost napada z zamenjavo HID sporo\u010dil, ki se izvaja brez sodelovanja uporabnika. Ta napad lahko poteka na razdalji do 100 metrov od \u017ertve.<\/p>\n

Mehanizem povezovanja naprav brez overitve je dolo\u010den v specifikaciji Bluetooth in, odvisno od nastavitev Bluetooth sklada, omogo\u010da povezovanje naprave brez potrditve uporabnika. Na primer, v Linuxu, pri uporabi Bluetooth sklada BlueZ, mora biti Bluetooth adapter v na\u010dinu odkrivanja in povezovanja za skrito povezovanje. V Androidu je dovolj, da omogo\u010dite podporo Bluetooth. V iOS in macOS pa je za uspe\u0161en napad potrebno, da je Bluetooth vklopljen in da je brez\u017ei\u010dna tipkovnica povezana.<\/p>\n

Mo\u017enost zamenjave vnosa je bila prikazana v Ubuntu 18.04, 20.04, 22.04 in 23.10 z Bluetooth skladom, temelje\u010dim na paketu BlueZ. ChromeOS ni ranljiv, saj njegove nastavitve Bluetooth sklada ne omogo\u010dajo povezav brez overitve. V Androidu ranljivost vpliva na naprave z razli\u010dicami platforme od 4.2.2 do 14. Na macOS je bila ranljivost prikazana na MacBook Pro 2022 s \u010dipom Apple M2 in macOS 13.3.3, pa tudi na MacBook Air 2017 s procesorjem Intel in macOS 12.6.7. V iOS je bila ranljivost prikazana na iPhone SE z iOS 16.6. Vklop na\u010dina Lockdown ne nudi za\u0161\u010dite pred napadom na macOS in iOS.<\/p>\n

<\/p>\n

V Linuxu ranljivost odpravljena<\/a> \u0432 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u0435 Bluez \u043f\u0443\u0442\u0435\u043c \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 «ClassicBondedOnly» \u0432 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 «true», \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0435 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u044b\u0439 \u0440\u0435\u0436\u0438\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u0435\u0442 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0441\u043b\u0435 \u0441\u043e\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f. \u0420\u0430\u043d\u0435\u0435 \u0431\u044b\u043b\u043e \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 «false», \u043a\u043e\u0442\u043e\u0440\u043e\u0435, \u0440\u0430\u0434\u0438 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438 \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u043c\u0438 \u0432\u0432\u043e\u0434\u0430, \u0441\u043d\u0438\u0436\u0430\u043b\u043e \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438.<\/p>\n

<\/noindex> <\/p>\n

V Bluetooth skladu Fluoride, ki se uporablja v zadnjih razli\u010dicah Androida, ranljivost je bila odpravljena<\/a> z obvezno uporabo avtentikacije za vse \u0161ifrirane povezave. Popravki za Android so bili izdani le za vejice 11-14. Za naprave Pixel je bila ranljivost odpravljena v decembrski posodobitvi programske opreme. Za razli\u010dice Androida od 4.2.2 do 10 ranljivost ostaja odprta.<\/p>\n

<\/noindex><\/p>\n

Izvor: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041c\u0430\u0440\u043a \u041d\u044c\u044e\u043b\u0438\u043d (Marc Newlin), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u044b\u044f\u0432\u0438\u043b \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c MouseJack \u0441\u0435\u043c\u044c \u043b\u0435\u0442 \u043d\u0430\u0437\u0430\u0434, \u0440\u0430\u0441\u043a\u0440\u044b\u043b \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u043e \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2023-45866), \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0435\u0439 Bluetooth-\u0441\u0442\u0435\u043a\u0438 Android, Linux, macOS \u0438 iOS. \u042d\u0442\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c \u043f\u043e\u0434\u043c\u0435\u043d\u0443 \u043d\u0430\u0436\u0430\u0442\u0438\u0439 \u043a\u043b\u0430\u0432\u0438\u0448 \u043f\u0443\u0442\u0435\u043c \u0441\u0438\u043c\u0443\u043b\u044f\u0446\u0438\u0438 \u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0432\u0432\u043e\u0434\u0430, \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u043e Bluetooth. \u041f\u043e\u043b\u0443\u0447\u0438\u0432 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043b\u0430\u0432\u0438\u0430\u0442\u0443\u0440\u043d\u043e\u043c\u0443 \u0432\u0432\u043e\u0434\u0443, \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u043c\u0430\u043d\u0434 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-112103","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Ranljivost v Bluetooth skladih Linux, macOS, Android in iOS | ProHoster","description":"Marc Newlin, ki je pred sedmimi leti odkril ranljivost MouseJack, je razkril informacije 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