{"id":30564,"date":"2019-10-31T21:36:12","date_gmt":"2019-10-31T18:36:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel\/"},"modified":"2019-10-31T21:36:12","modified_gmt":"2019-10-31T18:36:12","slug":"positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","title":{"rendered":"Positive Technologies izvijestila je o otkri\u0107u nove potencijalne \"lekcije\" u Intel \u010dipovima","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Vjerojatno nitko ne bi mogao osporiti da su procesori prili\u010dno slo\u017eena rje\u0161enja koja jednostavno ne mogu raditi bez samodijagnostike i slo\u017eenih kontrolnih sredstava kako u fazi proizvodnje, tako i tijekom eksploatacije. Razvija\u010di jednostavno moraju imati sredstva 'svemogu\u0107nosti' kako bi bili potpuno sigurni u kvalitetu proizvoda. I ti alati se ne gube. U budu\u0107nosti, svi ti dijagnosti\u010dki alati unutar procesora mogu slu\u017eiti plemenitim ciljevima, poput tehnologija daljinskog nadzora kao \u0161to je Intel AMT, ali potencijalno mogu postati i stra\u017enji ulaz za obavje\u0161tajne agencije ili zlonamjernike, \u0161to za korisnika \u010desto predstavlja isto.<\/p>\n

\"Positive<\/p>\n

Kao \u0161to se mo\u017eda sje\u0107ate, u svibnju 2016. godine stru\u010dnjaci tvrtke Positive Technologies otkrili su da je modul Intel Management Engine 11 za implementaciju tehnologije AMT unutar sustavnog \u010dvori\u0161ta (PCH) pretrpio ozbiljne promjene i postao ranjiv na napade zlonamjernika. Do verzije IME 11, modul je bio na jedinstvenoj arhitekturi i bez posebne dokumentacije nije predstavljao posebnu opasnost, dok je mogao otvoriti pristup informacijama u memoriji PC-a. S verzijom IME 11, modul je postao x86-kompatibilan i dostupan za prou\u010davanje \u0161irokim masama (detaljnije o ranjivosti INTEL-SA-00086 ovdje i dalje kroz linkove). \u0160tovi\u0161e, nakon godine dana otkrivena je veza izme\u0111u IME-a i \u0161pijunske programe NSA-a. Daljnje istra\u017eivanje IME-a dovelo je do otkri\u0107a jo\u0161 jednog potencijalnog 'le\u017ei\u0161ta' u kontrolerima i procesorima Intela, o kojem su ju\u010der na konferenciji Black Hat u Singapuru govorili stru\u010dnjaci iz Positive Technologies Maksim Gorja\u010di i Mark Jer\u0161ov.<\/p>\n

U okviru \u010dvori\u0161ta PCH i u Intel procesorima otkriven je vi\u0161enamjenski logi\u010dki analizator signala VISA (Intel Visualization of Internal Signals Architecture). To\u010dnije, VISA je tako\u0111er alat Intela za provjeru funkcionalnosti procesora. Dokumentacija za modul nije dostupna javnosti, ali to ne zna\u010di da nije prisutna. Istra\u017eivanje VISA-e pokazalo je da se izvorno onemogu\u0107en analizator u tvornici Intel mo\u017ee aktivirati zlonamjernikom, osiguravaju\u0107i pristup ne samo informacijama u memoriji ra\u010dunala ve\u0107 i signalnim sekvencama periferije. Uz to, prona\u0111eno je nekoliko na\u010dina za aktivaciju VISA-e.<\/p>\n

<\/center><\/p>\n

\"Positive<\/p>\n

Uklju\u010divanje VISA-a i sticanje pristupa, na primjer, web kamerama, bilo je mogu\u0107e na obi\u010dnoj mati\u010dnoj plo\u010di. Nije bilo potrebno nikakvo posebno opremanje za to. Ovaj i drugi primjer stru\u010dnjaci Positive Technologies prikazali su tijekom izlaganja na Black Hat-u. Do sada se nitko direktno nije povezao s NSA-om zbog prisutnosti VISA-e, osim, naravno, teoreti\u010dara zavjera. Me\u0111utim, ako postoji nedokumentirana mogu\u0107nost uklju\u010divanja signalnog analiti\u010dara u bilo kojem sustavu na Intel platformi, negdje \u0107e je sigurno uklju\u010diti.<\/p>\n

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Izvor: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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