{"id":116935,"date":"2024-07-04T15:05:10","date_gmt":"2024-07-04T13:05:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake"},"modified":"2024-07-04T15:05:10","modified_gmt":"2024-07-04T13:05:10","slug":"indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","title":{"rendered":"Indirector \u2014 nj\u00eb sulm mikroarkitektonik i ri q\u00eb ndikon n\u00eb CPU-t\u00eb Intel Raptor Lake dhe Alder Lake","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Hulumtuesit nga Universiteti i Kalifornis\u00eb n\u00eb San Diego paraqit\u00ebn nj\u00eb metod\u00eb t\u00eb re sulmi ndaj strukturave mikroarkitekturore t\u00eb procesor\u00ebve Intel, e cila mund t\u00eb aplikohet, nd\u00ebr t\u00eb tjera, p\u00ebr CPU-t\u00eb e bazuar n\u00eb mikroarkitektur\u00ebn Raptor Lake dhe Alder Lake. Sulmi, i cili mori emrin kodor Indirector, lejon t\u00eb arrihet ndryshimi i rrjedh\u00ebs s\u00eb ekzekutimit spekulator t\u00eb instrukcioneve n\u00eb procese t\u00eb tjera dhe n\u00eb nivele t\u00eb tjera privilegji (p.sh., n\u00eb b\u00ebrtham\u00eb ose n\u00eb nj\u00eb makin\u00eb virtuale tjet\u00ebr), q\u00eb ekzekutohen n\u00eb nj\u00eb fij\u00eb CPU me kodin e sulmuesit. Si nj\u00eb demostrim i funksionit t\u00eb metod\u00ebs, \u00ebsht\u00eb p\u00ebrgatitur nj\u00eb prototip eksploitues, i cili lejon t\u00eb p\u00ebrcaktohet ndarja e adresave t\u00eb memories p\u00ebr t\u00eb tejkaluar mekanizmin e mbrojtjes ASLR (Randomizimi i Skem\u00ebs s\u00eb Hap\u00ebsir\u00ebs s\u00eb Kujtes\u00ebs). P\u00ebr m\u00eb tep\u00ebr, n\u00ebn licenc\u00ebn MIT \u00ebsht\u00eb publikuar nj\u00eb set mjetesh, i zhvilluar p\u00ebr analiz\u00ebn dhe inxhinerin\u00eb p\u00ebrmbys\u00ebse t\u00eb logjik\u00ebs mikroarkitekturore t\u00eb CPU. <\/p>\n

K\u00ebtu ofrohen dy metoda p\u00ebr organizimin e sulmit. Metoda e par\u00eb bazohet n\u00eb distortimin e p\u00ebrmbajtjes s\u00eb tamponit p\u00ebr parashikimin e kalimeve indirekte (IBP - Indirect Branch Predictor), i cili p\u00ebrdoret p\u00ebr parashikimin e kalimeve indirekte n\u00eb kushte kur adresa ose offseti p\u00ebr kalimin nuk jan\u00eb ende t\u00eb njohura dhe llogariten n\u00eb instruktionet q\u00eb e paraprijn\u00eb instruktionin e kalimit. Metoda e dyt\u00eb i referohet tamponit t\u00eb parashikimit t\u00eb kalimeve (BTB - Branch Target Buffer), i cili mbante informacion mbi kalimet e fundit.<\/p>\n

\"Indirector<\/center><\/p>\n

\"Indirector<\/center><\/p>\n

Dobit e mund\u00ebsuar sulmuesit t\u00eb identifikoj\u00eb p\u00ebrmbajtjen e regjistrimeve n\u00eb buferat IBP dhe BTB, q\u00eb p\u00ebrmbajn\u00eb adresat e kalimeve t\u00eb p\u00ebrdorura n\u00eb procese t\u00eb jashtme, si dhe t\u00eb realizoj\u00eb z\u00ebvend\u00ebsimin e nj\u00eb adrese kalimi t\u00eb rast\u00ebsishme n\u00eb tabelat e t\u00eb dh\u00ebnave t\u00eb buferave. Si rezultat, sulmuesi mund t\u00eb arrij\u00eb t\u00eb redirektoj\u00eb rrjedh\u00ebn e ekzekutimit t\u00eb nj\u00eb procesi t\u00eb jasht\u00ebm n\u00eb adres\u00ebn e d\u00ebshiruara n\u00eb memorje gjat\u00eb ekzekutimit spekulativ t\u00eb instruksioneve. Pas p\u00ebrcaktimit t\u00eb parashikimit t\u00eb gabuar, rezultati i ekzekutimit spekulativ do t\u00eb hidhet, por adresat dhe t\u00eb dh\u00ebnat e lexuara nga memorie n\u00eb procesin e ekzekutimit spekulativ t\u00eb instruksioneve do t\u00eb mbeten n\u00eb cache dhe do t\u00eb jet\u00eb e mundur q\u00eb t\u00eb nxirren, duke p\u00ebrdorur nj\u00eb nga metodat p\u00ebr t\u00eb p\u00ebrcaktuar p\u00ebrmbajtjen e cache-it bazuar n\u00eb analiz\u00ebn e ndryshimit t\u00eb koh\u00ebs s\u00eb aksesit n\u00eb t\u00eb dh\u00ebna t\u00eb cache-uar dhe t\u00eb pa-cache-uar. P\u00ebrcaktimi i adresave t\u00eb sakta t\u00eb kalimeve indirekte, n\u00eb praktik\u00eb, mund t\u00eb p\u00ebrdoret, p\u00ebr shembull, p\u00ebr t\u00eb anashkaluar mekanizmin e mbrojtjes ASLR.
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u041a\u0430\u043b\u0438\u0444\u043e\u0440\u043d\u0438\u0439\u0441\u043a\u043e\u0433\u043e \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442\u0430 \u0432 \u0421\u0430\u043d-\u0414\u0438\u0435\u0433\u043e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u043c\u0435\u0442\u043e\u0434 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u044b\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel, \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u043c\u044b\u0439 \u0441\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0435\u0433\u043e \u043a CPU \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 Raptor Lake \u0438 Alder Lake. \u0410\u0442\u0430\u043a\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f Indirector, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0445\u043e\u0434\u0430 \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 \u0432 \u0434\u0440\u0443\u0433\u0438\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u0445 \u0438 \u043d\u0430 \u0434\u0440\u0443\u0433\u0438\u0445 \u0443\u0440\u043e\u0432\u043d\u044f\u0445 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0432 \u044f\u0434\u0440\u0435 \u0438\u043b\u0438 \u0434\u0440\u0443\u0433\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":116936,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-116935","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Indirector \u2014 nj\u00eb sulm mikroarkitekturor i ri q\u00eb prek CPU-t\u00eb Intel Raptor Lake dhe Alder Lake | ProHoster","description":"K\u00ebrkuesit nga Universiteti i Kalifornis\u00eb n\u00eb San Diego prezantuan nj\u00eb metod\u00eb t\u00eb re sulmi ndaj strukturave mikroarkitekturore t\u00eb procesor\u00ebve Intel, t\u00eb aplikuesh\u00ebm p\u00ebr CPU-t\u00eb bazuar n\u00eb mikroarkitektur\u00ebn Raptor Lake dhe Alder Lake. Sulmi, i cili ka emrin kod Indirector, lejon ndryshimin e rrjedh\u00ebs s\u00eb ekzekutimit spekulativ t\u00eb instruksioneve n\u00eb procese t\u00eb tjera dhe n\u00eb nivele t\u00eb tjera privilegji (p.sh., n\u00eb b\u00ebrtham\u00eb ose n\u00eb nj\u00eb virtuale tjet\u00ebr)","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sq_AL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Indirector \u2014 \u043d\u043e\u0432\u0430\u044f \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u0430\u044f \u0430\u0442\u0430\u043a\u0430, \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0430\u044f CPU Intel Raptor Lake \u0438 Alder Lake | ProHoster","og:description":"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u041a\u0430\u043b\u0438\u0444\u043e\u0440\u043d\u0438\u0439\u0441\u043a\u043e\u0433\u043e \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442\u0430 \u0432 \u0421\u0430\u043d-\u0414\u0438\u0435\u0433\u043e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u043c\u0435\u0442\u043e\u0434 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u044b\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel, \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u043c\u044b\u0439 \u0441\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0435\u0433\u043e \u043a CPU \u043d\u0430 \u0431\u0430\u0437\u0435 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 Raptor Lake \u0438 Alder Lake. \u0410\u0442\u0430\u043a\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f Indirector, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0445\u043e\u0434\u0430 \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439 \u0432 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