{"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\/hu\/blog\/news\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","title":{"rendered":"Az Indirector \u2014 egy \u00faj mikroarchitekt\u00far\u00e1j\u00fa t\u00e1mad\u00e1s, amely az Intel Raptor Lake \u00e9s Alder Lake CPU-kat \u00e9rinti.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Kaliforniai Egyetem San Dieg\u00f3-i kutat\u00f3i bemutattak egy \u00faj m\u00f3dszert az Intel processzorok mikroarchitekt\u00far\u00e1j\u00e1nak megt\u00e1mad\u00e1s\u00e1ra, amely alkalmazhat\u00f3 t\u00f6bbek k\u00f6z\u00f6tt a Raptor Lake \u00e9s Alder Lake mikroarchitekt\u00far\u00e1ra \u00e9p\u00fcl\u0151 CPU-kra. Az Indirector k\u00f3dn\u00e9ven ismert t\u00e1mad\u00e1s lehet\u0151v\u00e9 teszi, hogy megv\u00e1ltoztass\u00e1k a spekulat\u00edv utas\u00edt\u00e1sv\u00e9grehajt\u00e1s menet\u00e9t m\u00e1s folyamatokban \u00e9s m\u00e1s privil\u00e9giumszinteken (p\u00e9ld\u00e1ul a kernelben vagy m\u00e1s virtu\u00e1lis g\u00e9peken), amelyek egy CPU sz\u00e1lon futnak a t\u00e1mad\u00f3 k\u00f3dj\u00e1val. A m\u00f3dszer m\u0171k\u00f6d\u00e9s\u00e9nek bemutat\u00e1s\u00e1ra egy protot\u00edpus exploitet k\u00e9sz\u00edtettek, amely lehet\u0151v\u00e9 teszi a mem\u00f3ria c\u00edmek elrendez\u00e9s\u00e9nek meghat\u00e1roz\u00e1s\u00e1t az ASLR (C\u00edmhely-eloszt\u00e1si v\u00e9letlen\u00edt\u00e9s) v\u00e9delmi mechanizmus\u00e1nak megker\u00fcl\u00e9s\u00e9re. Ezen k\u00edv\u00fcl MIT licenc alatt k\u00f6zz\u00e9tett\u00e9k a CPU mikroarchitektur\u00e1lis logik\u00e1j\u00e1nak elemz\u00e9s\u00e9re \u00e9s visszafejt\u00e9s\u00e9re szolg\u00e1l\u00f3 eszk\u00f6z\u00f6ket. <\/p>\n

K\u00e9t t\u00e1mad\u00e1si m\u00f3dszert javasoltak. Az els\u0151 m\u00f3dszer a folyamatjelz\u0151 IBP (Indirect Branch Predictor) tartalm\u00e1nak torz\u00edt\u00e1s\u00e1n alapul, amely a m\u00e9g ismeretlen c\u00edm vagy eltol\u00e1s eset\u00e9ben a k\u00f6zvetett ugr\u00e1sok el\u0151rejelz\u00e9s\u00e9re szolg\u00e1l, amelyeket a ugr\u00e1s el\u0151tti utas\u00edt\u00e1sokban sz\u00e1m\u00edtanak ki. A m\u00e1sodik m\u00f3dszer a BTB (Branch Target Buffer) ugr\u00e1s el\u0151rejelz\u0151 t\u00e1rol\u00f3t \u00e9rinti, amely a k\u00f6zelm\u00faltbeli ugr\u00e1sokr\u00f3l tartalmaz inform\u00e1ci\u00f3t.<\/p>\n

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

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

A felfedezett s\u00e9r\u00fcl\u00e9kenys\u00e9gek lehet\u0151v\u00e9 teszik a t\u00e1mad\u00f3 sz\u00e1m\u00e1ra, hogy meghat\u00e1rozza az IBP \u00e9s BTB t\u00e1rol\u00f3kban tal\u00e1lhat\u00f3, m\u00e1s folyamatokban haszn\u00e1lt ugr\u00e1sc\u00edmekkel kapcsolatos bejegyz\u00e9sek tartalm\u00e1t, valamint lehet\u0151v\u00e9 teszik egy tetsz\u0151leges ugr\u00e1si c\u00edm behelyettes\u00edt\u00e9s\u00e9t a t\u00e1rol\u00f3k adatainak t\u00e1bl\u00e1iba. Ennek k\u00f6vetkezt\u00e9ben a t\u00e1mad\u00f3 el\u00e9rheti, hogy egy harmadik f\u00e9l folyamat\u00e1nak v\u00e9grehajt\u00e1si folyamata a k\u00edv\u00e1nt c\u00edmre ir\u00e1nyuljon a spekulat\u00edv utas\u00edt\u00e1sv\u00e9grehajt\u00e1s sor\u00e1n. Miut\u00e1n meghat\u00e1rozt\u00e1k a t\u00e9ves el\u0151rejelz\u00e9st, a spekulat\u00edv v\u00e9grehajt\u00e1s eredm\u00e9nye elvet\u00e9sre ker\u00fcl, de az ilyen spekulat\u00edv v\u00e9grehajt\u00e1s sor\u00e1n a mem\u00f3ri\u00e1b\u00f3l olvasott c\u00edmek \u00e9s adatok a cache-ben megmaradnak, \u00e9s egy cache tartalom meghat\u00e1roz\u00e1si m\u00f3dszerrel, amely a cache-be val\u00f3 hozz\u00e1f\u00e9r\u00e9si id\u0151 v\u00e1ltoz\u00e1s\u00e1ra alapoz, kiolvashat\u00f3k. A k\u00f6zvetett ugr\u00e1sok pontos c\u00edm\u00e9nek meghat\u00e1roz\u00e1sa a gyakorlatban p\u00e9ld\u00e1ul az ASLR v\u00e9delmi mechanizmus\u00e1nak megker\u00fcl\u00e9s\u00e9re haszn\u00e1lhat\u00f3.
\n
Forr\u00e1s: 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\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 - egy \u00faj mikroarchitekt\u00far\u00e1s t\u00e1mad\u00e1s, amely az Intel Raptor Lake \u00e9s Alder Lake CPU-kat \u00e9rinti | ProHoster","description":"A Kaliforniai Egyetem San Dieg\u00f3i Kampusz\u00e1nak kutat\u00f3i bemutatt\u00e1k az Intel processzorok mikroarchitekt\u00far\u00e1j\u00e1t c\u00e9lz\u00f3 \u00faj t\u00e1mad\u00e1si m\u00f3dszert, amely t\u00f6bbek k\u00f6z\u00f6tt alkalmazhat\u00f3 az Raptor Lake \u00e9s Alder mikroarchitekt\u00far\u00e1kra alapozott CPU-kra.","canonical_url":"https:\/\/prohoster.info\/hu\/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":"hu_HU","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.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/indirector-novaya-mikroarhitekturnaya-ataka-zatragivayushhaya-cpu-intel-raptor-lake-i-alder-lake","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2024-07-04T13:05:10+00:00","article:modified_time":"2024-07-04T13:05:10+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"116935","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-23 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