{"id":148495,"date":"2025-11-15T23:11:59","date_gmt":"2025-11-15T21:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android"},"modified":"2025-11-15T23:11:59","modified_gmt":"2025-11-15T21:11:59","slug":"udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/udalyonno-ekspluatiruemaya-uzvimost-v-bluetooth-steke-platformy-android","title":{"rendered":"Vzd\u00e1len\u011b zneu\u017eiteln\u00e1 zranitelnost ve Bluetooth stacku platformy Android","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V m\u011bs\u00ed\u010dn\u00edm bezpe\u010dnostn\u00edm bulletinu pro Android byly zve\u0159ejn\u011bny informace o zranitelnosti CVE-2025-48593 v syst\u00e9mu Bluetooth, kter\u00e1 se dot\u00fdk\u00e1 verz\u00ed Android od 13 do 16. Zranitelnost byla ohodnocena jako kritick\u00e1 (9,8 z 10), proto\u017ee m\u016f\u017ee v\u00e9st k vzd\u00e1len\u00e9mu spu\u0161t\u011bn\u00ed k\u00f3du p\u0159i zpracov\u00e1n\u00ed speci\u00e1ln\u011b vytvo\u0159en\u00fdch Bluetooth paket\u016f. <\/p>\n

Spole\u010dnost Google zat\u00edm nezve\u0159ejnila podrobnosti o zranitelnosti, ale nez\u00e1visl\u00ed v\u00fdzkumn\u00edci tvrd\u00ed, \u017ee probl\u00e9m se net\u00fdk\u00e1 b\u011b\u017en\u00fdch smartphon\u016f a ovliv\u0148uje pouze Bluetooth za\u0159\u00edzen\u00ed, kter\u00e1 mohou fungovat jako reproduktory, jako jsou chytr\u00e9 reproduktory, chytr\u00e9 hodinky a informa\u010dn\u011b-z\u00e1bavn\u00ed syst\u00e9my v automobilech. K tomu, aby bylo mo\u017en\u00e9 zranitelnost zneu\u017e\u00edt, je pot\u0159eba, aby u\u017eivatel sp\u00e1roval sv\u00e9 za\u0159\u00edzen\u00ed s \u00fato\u010dn\u00edkov\u00fdm za\u0159\u00edzen\u00edm, tedy k obran\u011b proti probl\u00e9mu sta\u010d\u00ed nep\u0159ij\u00edmat podez\u0159el\u00e9 p\u00e1rovac\u00ed \u017e\u00e1dosti (v bulletinu od Googlu je uvedeno, \u017ee pro zneu\u017eit\u00ed nen\u00ed nutn\u00e9, aby u\u017eivatel podnikal n\u011bjak\u00e9 kroky). <\/p>\n

Oprava spo\u010d\u00edv\u00e1 v p\u0159id\u00e1n\u00ed vol\u00e1n\u00ed pro ov\u011b\u0159en\u00ed existence Discovery Database p\u0159i pr\u00e1ci s Bluetooth profilem Handsfree a zastaven\u00ed vyhled\u00e1v\u00e1n\u00ed peer\u016f pomoc\u00ed protokolu SDP (Service Discovery Protocol), jako\u017e i ve resetov\u00e1n\u00ed a vy\u010di\u0161t\u011bn\u00ed struktury p_disc_db (\u201ediscovery database\u201c). Ur\u010dit\u00e9 manipulace se t\u00fdkaj\u00ed vracen\u00ed chyb a obnoven\u00ed spojen\u00ed b\u011bhem procesu ur\u010dov\u00e1n\u00ed Bluetooth slu\u017eby a sjedn\u00e1v\u00e1n\u00ed interakce. serveru<\/a> s klientem vedou k p\u0159\u00edstupu do ji\u017e uvoln\u011bn\u00e9 oblasti pam\u011bti (use-after-free). <\/p>\n

Oprava byla ji\u017e p\u0159evedena do k\u00f3du LineageOS. Je dostupn\u00fd \u010dasn\u00fd prototyp exploitu, kter\u00fd zp\u016fsobuje p\u00e1d syst\u00e9mu p\u0159i spu\u0161t\u011bn\u00ed Androidu ve speci\u00e1ln\u00edm emul\u00e1toru. V s\u00edti byly tak\u00e9 zaznamen\u00e1ny pokusy o prodej funk\u010dn\u00edho exploitu, ale podle v\u0161eho jde o pokusy o \u0161\u00ed\u0159en\u00ed malware nebo prodej podvodn\u00fdch program\u016f. <\/p>\n

Krom\u011b t\u00e9to zranitelnosti obsahuje listopadov\u00e1 aktualizace Android opravu zranitelnosti CVE-2025-48581, kter\u00e1 vede k eskalaci opr\u00e1vn\u011bn\u00ed. Probl\u00e9m se t\u00fdk\u00e1 pouze Androidu 16 a je ozna\u010den jako nebezpe\u010dn\u00fd. P\u0159\u00ed\u010dinou zranitelnosti je logick\u00e1 chyba ve funkci VerifyNoOverlapInSessions ze souboru apexd.cpp, kter\u00e1 umo\u017e\u0148uje zablokovat instalaci aktualizac\u00ed opravuj\u00edc\u00edch bezpe\u010dnostn\u00ed probl\u00e9my. Uv\u00e1d\u00ed se, \u017ee zranitelnost lze vyu\u017e\u00edt k m\u00edstn\u00ed eskalaci opr\u00e1vn\u011bn\u00ed. K proveden\u00ed \u00fatoku nen\u00ed t\u0159eba, aby u\u017eivatel podnikal \u017e\u00e1dn\u00e9 kroky.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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