{"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\/sk\/blog\/news\/uyazvimost-v-bluetooth-stekah-linux-macos-android-i-ios","title":{"rendered":"Zranite\u013enos\u0165 v Bluetooth z\u00e1sobn\u00edkoch Linux, macOS, Android a iOS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <noindex><\/p>\n<p>Marc Newlin, ktor\u00fd odhalil zranite\u013enos\u0165 <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=43934\">MouseJack<\/a> pred siedmimi rokmi, zverejnil inform\u00e1cie o <a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2023-45866\">podobnej zranite\u013enosti (CVE-2023-45866)<\/a>, ktor\u00e1 sa t\u00fdka Bluetooth stackov Android, Linux, macOS a iOS. T\u00e1to zranite\u013enos\u0165 umo\u017e\u0148uje podvodn\u00e9 simulovanie stla\u010den\u00ed kl\u00e1ves, vzh\u013eadom na aktivitu vstupn\u00e9ho zariadenia pripojen\u00e9ho cez Bluetooth. Z\u00edskan\u00edm pr\u00edstupu k vstupu z kl\u00e1vesnice m\u00f4\u017ee \u00fato\u010dn\u00edk vykon\u00e1va\u0165 r\u00f4zne akcie, ako je sp\u00fa\u0161\u0165anie pr\u00edkazov v syst\u00e9me, in\u0161tal\u00e1cia aplik\u00e1ci\u00ed a presmerovanie spr\u00e1v.<\/p>\n<p><\/noindex><\/noindex>  <\/p>\n<p>Zranite\u013enos\u0165 je sp\u00f4soben\u00e1 t\u00fdm, \u017ee hostite\u013esk\u00e9 ovl\u00e1da\u010de HID (Human Interface Device) pre Bluetooth zariadenia maj\u00fa re\u017eim, ktor\u00fd umo\u017e\u0148uje vzdialen\u00e9mu perif\u00e9rnemu zariadeniu vytv\u00e1ra\u0165 a ustanovova\u0165 \u0161ifrovan\u00e9 spojenia bez autentifik\u00e1cie. Tak\u00e9to pripojen\u00e9 zariadenia m\u00f4\u017eu odosiela\u0165 spr\u00e1vy z kl\u00e1vesnice, ktor\u00e9 HID stack spracov\u00e1va, \u010do otv\u00e1ra mo\u017enosti \u00fatoku prostredn\u00edctvom podvodu s HID spr\u00e1vami, vykon\u00e1van\u00e9ho bez \u00fa\u010dasti pou\u017e\u00edvate\u013ea. Tento \u00fatok m\u00f4\u017ee by\u0165 uskuto\u010dnen\u00fd a\u017e do vzdialenosti 100 metrov od obete.<\/p>\n<p>Mechanizmus p\u00e1rovania zariaden\u00ed bez autentifik\u00e1cie je definovan\u00fd v \u0161pecifik\u00e1cii Bluetooth a v z\u00e1vislosti od nastaven\u00ed Bluetooth stacku umo\u017e\u0148uje pripojenie zariadenia bez potvrdenia od pou\u017e\u00edvate\u013ea. Napr\u00edklad v Linuxe, pri pou\u017eit\u00ed Bluetooth stacku BlueZ, je pre skryt\u00e9 p\u00e1rovanie Bluetooth adapt\u00e9ra potrebn\u00e9, aby bol v re\u017eime zistenia a pripojenia. V Android sta\u010d\u00ed aktivova\u0165 podporu Bluetooth. V iOS a macOS mus\u00ed by\u0165 pre \u00faspe\u0161n\u00fd \u00fatok zapnut\u00fd Bluetooth a navy\u0161e pripojen\u00e1 bezdr\u00f4tov\u00e1 kl\u00e1vesnica.<\/p>\n<p>Mo\u017enos\u0165 podvodn\u00e9ho zad\u00e1vania bola demon\u0161trovan\u00e1 na Ubuntu 18.04, 20.04, 22.04 a 23.10 so Bluetooth stackom na b\u00e1ze bal\u00edka BlueZ. ChromeOS nie je zranite\u013en\u00fd, preto\u017ee jeho nastavenia Bluetooth stacku neumo\u017e\u0148uj\u00fa pripojenia bez autentifik\u00e1cie. V Android zranite\u013enos\u0165 postihuje zariadenia s verziami platformy od 4.2.2 do 14. Na macOS bola zranite\u013enos\u0165 demon\u0161trovan\u00e1 na MacBook Pro 2022 s procesorom Apple M2 a macOS 13.3.3, ako aj na MacBook Air 2017 s procesorom Intel a macOS 12.6.7. V iOS bola zranite\u013enos\u0165 demon\u0161trovan\u00e1 na iPhone SE s iOS 16.6. Zapnutie re\u017eimu Lockdown nezabezpe\u010duje ochranu pred \u00fatokom na macOS a iOS.<\/p>\n<p> <noindex><\/p>\n<p>Na Linuxe bola zranite\u013enos\u0165 <a rel=\"nofollow\" href=\"https:\/\/git.kernel.org\/pub\/scm\/bluetooth\/bluez.git\/commit\/profiles\/input?id=25a471a83e02e1effb15d5a488b3f0085eaeb675\">odstr\u00e1nen\u00e1<\/a> V k\u00f3dovej b\u00e1ze Bluez sa nastaven\u00edm mo\u017enosti &laquo;ClassicBondedOnly&raquo; na hodnotu &laquo;true&raquo; aktivuje bezpe\u010dnostn\u00fd re\u017eim, ktor\u00fd povo\u013euje nadviazanie pripojen\u00ed iba po sp\u00e1rovan\u00ed. Predt\u00fdm bola nastaven\u00e1 hodnota &laquo;false&raquo;, ktor\u00e1, na zachovanie kompatibility s niektor\u00fdmi vstupn\u00fdmi zariadeniami, zni\u017eovala \u00farove\u0148 zabezpe\u010denia.<\/p>\n<p><\/noindex> <noindex><\/p>\n<p>V Bluetooth stacku Fluoride, ktor\u00fd sa pou\u017e\u00edva v najnov\u0161\u00edch verzi\u00e1ch Androidu, <a rel=\"nofollow\" href=\"https:\/\/android.googlesource.com\/platform\/packages\/modules\/Bluetooth\/+\/5673b3c6bbe8c6c9edb8afb5e9499dc3a41d3943\">zranite\u013enos\u0165 bola odstr\u00e1nen\u00e1<\/a> povin\u00fdm pou\u017e\u00edvan\u00edm autentifik\u00e1cie pre v\u0161etky \u0161ifrovan\u00e9 pripojenia. Opravy pre Android boli vydan\u00e9 len pre vetvy 11-14. Pre zariadenia Pixel bola zranite\u013enos\u0165 odstr\u00e1nen\u00e1 v decembrovej aktualiz\u00e1cii firmv\u00e9ru. Pre verzie Androidu od 4.2.2 do 10 zost\u00e1va zranite\u013enos\u0165 neopraven\u00e1.<\/p>\n<p><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/security\/17447666\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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, [&hellip;]<\/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<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041c\u0430\u0440\u043a 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