{"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\/news\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","title":{"rendered":"Indirector \u2014 nj\u00eb sulm i ri mikroarkitekturor q\u00eb prek CPU-t\u00eb Intel Raptor Lake dhe Alder Lake.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

K\u00ebrkuesit nga Universiteti i Kalifornis\u00eb n\u00eb San Diego prezantuan nj\u00eb metod\u00eb t\u00eb re sulmi ndaj struktura mikroarkitekturale t\u00eb procesor\u00ebve Intel, e cila \u00ebsht\u00eb e aplikueshme, nd\u00ebr t\u00eb tjera, p\u00ebr CPU t\u00eb bazuara n\u00eb mikroarkitektur\u00ebn Raptor Lake dhe Alder Lake. Sulmi, i njohur me emrin kodues Indirector, lejon ndryshimin e rrjedh\u00ebs s\u00eb ekzekutimit spekulativ 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 treg t\u00eb CPU me kodin e sulmuesit. Si nj\u00eb demonstrim i funksionit t\u00eb metod\u00ebs, \u00ebsht\u00eb p\u00ebrgatitur nj\u00eb prototip eksploati, i cili lejon p\u00ebrcaktimin e vendosjes s\u00eb adresave t\u00eb memories p\u00ebr t\u00eb anashkaluar mekanizmin e mbrojtjes ASLR (Randomizimi i Vendosjes s\u00eb Hap\u00ebsir\u00ebs s\u00eb Memories). P\u00ebr m\u00eb tep\u00ebr, \u00ebsht\u00eb publikuar me licenc\u00ebn MIT nj\u00eb instrumentar i zhvilluar p\u00ebr analiz\u00ebn dhe inxhinierin\u00eb e auto-qart\u00ebsis\u00eb s\u00eb logjik\u00ebs mikroarkitekturale t\u00eb CPU. <\/p>\n

Jan\u00eb propozuar dy metoda p\u00ebr organizimin e sulmit. Metoda e par\u00eb bazohet n\u00eb deformimin e p\u00ebrmbajtjes s\u00eb buffers p\u00ebr parashikimin e kalimeve indirekte IBP (Parashikuesi i Kalimeve Indirekte), q\u00eb p\u00ebrdoret p\u00ebr parashikimin e kalimeve indirekte n\u00eb kushtet kur adresa ose distanca p\u00ebr kalimin nuk jan\u00eb ende t\u00eb njohura dhe llogariten n\u00eb instrukcionet q\u00eb paraprijn\u00eb instrukcionin e kalimit. Metoda e dyt\u00eb prek bufferin e parashikimit t\u00eb kalimeve BTB (Bufferi i Targetit t\u00eb Kalimeve), q\u00eb p\u00ebrmban informacion mbi kalimet e fundit.<\/p>\n

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

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

Vulnerabilitetet e identifikuara lejojn\u00eb sulmuesin t\u00eb p\u00ebrcaktoj\u00eb p\u00ebrmbajtjen e regjistrave n\u00eb buffers IBP dhe BTB, q\u00eb p\u00ebrmbajn\u00eb adresat e kalimeve, t\u00eb p\u00ebrdorura n\u00eb procese t\u00eb tjera, si dhe t\u00eb realizoj\u00eb nj\u00eb z\u00ebvend\u00ebsim t\u00eb adres\u00ebs s\u00eb kalimit t\u00eb rast\u00ebsishme n\u00eb tabelat e t\u00eb dh\u00ebnave t\u00eb buffers. 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\u00ebshiruar n\u00eb memorie gjat\u00eb ekzekutimit spekulativ t\u00eb instrukcioneve. Pas p\u00ebrcaktimit t\u00eb parashikimit t\u00eb gabuar, rezultati i ekzekutimit spekulativ do t\u00eb hidhet posht\u00eb, por adresat dhe t\u00eb dh\u00ebnat e lexuara nga memoria gjat\u00eb ekzekutimit spekulativ do t\u00eb q\u00ebndrojn\u00eb n\u00eb cache dhe ato mund t\u00eb nxirren duke p\u00ebrdorur nj\u00eb nga m\u00ebnyrat p\u00ebr t\u00eb p\u00ebrcaktuar p\u00ebrmbajtjen e cache-it n\u00eb baz\u00eb t\u00eb analiz\u00ebs s\u00eb ndryshimit t\u00eb koh\u00ebs s\u00eb qasjes n\u00eb t\u00eb dh\u00ebna t\u00eb cache-uar dhe t\u00eb pa-cache-uar. P\u00ebrcaktimi i adresave t\u00eb sakt\u00eb t\u00eb kalimeve indirekte n\u00eb praktik\u00eb, p\u00ebr shembull, mund t\u00eb p\u00ebrdoret 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-news"],"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 i ri mikroarkitekturor 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 mikroarkitekturale t\u00eb procesor\u00ebve Intel, e cila \u00ebsht\u00eb e aplikueshme p\u00ebr CPU-t\u00eb e bazuara n\u00eb mikroarkitektur\u00ebn Raptor Lake dhe Alder.","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/news\/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, 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