{"id":107141,"date":"2023-03-07T12:48:16","date_gmt":"2023-03-07T10:48:16","guid":{"rendered":"https:\/\/prohoster.info\/?p=107141"},"modified":"2023-03-10T11:57:09","modified_gmt":"2023-03-10T09:57:09","slug":"uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","title":{"rendered":"Ranljivosti u referentnoj implementaciji TPM 2.0 omogu\u0107uju pristup podacima u kripto\u010dipu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

U kodu referentne implementacije specifikacije TPM 2.0 (Trusted Platform Module) otkrivene su ranljivosti (CVE-2023-1017, CVE-2023-1018) koje dovode do pisanja ili \u010ditanja podataka izvan rezervirane memorije. Napad na implementacije kriptooprocesora koje koriste ranjivi kod mo\u017ee rezultirati va\u0111enjem ili prepisivanjem informacija pohranjenih na \u010dipu, kao \u0161to su kriptografski klju\u010devi. Mogu\u0107nost prepisivanja podataka u firmwareu TPM mo\u017ee zlonamjerniku omogu\u0107iti izvo\u0111enje vlastitog koda u kontekstu TPM-a, \u0161to se, na primjer, mo\u017ee iskoristiti za implementaciju backdoora koji rade na strani TPM-a i nisu prepoznatljivi iz operativnog sustava. <\/p>\n

Ranjivosti su uzrokovane nepravilnom provjerom veli\u010dine parametara funkcije CryptParameterDecryption(), koja dopu\u0161ta pisanje ili \u010ditanje dva bajta izvan memorije dodijeljene funkciji ExecuteCommand() koja sadr\u017ei TPM 2.0 naredbu. Ovisno o implementaciji firmwarea, prepisana dva bajta mogu o\u0161tetiti kako neiskori\u0161tenu memoriju, tako i podatke ili pokaziva\u010de na steku. <\/p>\n

Eksploatacija ranjivosti se vr\u0161i slanjem posebno oblikovanih komandi TPM-modulu (napada\u010d mora imati pristup TPM su\u010delju). Problemi su ispravljeni u izdanu u sije\u010dnju a\u017euriranju specifikacije TPM 2.0 (1.59 Errata 1.4, 1.38 Errata 1.13, 1.16 Errata 1.6). <\/p>\n

Ranjivosti tako\u0111er poga\u0111aju otvorenu biblioteku libtpms, koja se koristi za softversku emulaciju TPM-modula i integraciju podr\u0161ke za TPM u hipervizore. Ranjivost je ispravljena u izdanju libtpms 0.9.6.
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-107141","post","type-post","status-publish","format-standard","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\udd47Ranljivosti u referentnoj implementaciji TPM 2.0 omogu\u0107uju pristup podacima u kripto\u010dipu | ProHoster","description":"U kodu referentne implementacije specifikacije TPM 2.0 (Trusted Platform Module) otkrivene su ranljivosti (CVE-2023-1017, CVE-2023-1018) koje dovode do pisanja ili \u010ditanja podataka izvan rezervirane memorije.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","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\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 TPM 2.0, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0434\u0430\u043d\u043d\u044b\u043c \u0432 \u043a\u0440\u0438\u043f\u0442\u043e\u0447\u0438\u043f\u0435 | ProHoster","og:description":"\u0412 \u043a\u043e\u0434\u0435 \u0441 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 TPM 2.0 (Trusted Platform Module) \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2023-1017, CVE-2023-1018), \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0438\u0435 \u043a \u0437\u0430\u043f\u0438\u0441\u0438 \u0438\u043b\u0438 \u0447\u0442\u0435\u043d\u0438\u044e \u0434\u0430\u043d\u043d\u044b\u0445 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0435\u0439 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430.","og:url":"https:\/\/prohoster.info\/hr\/blog\/news\/uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","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":"2023-03-07T10:48:16+00:00","article:modified_time":"2023-03-10T09:57:09+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/107141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/comments?post=107141"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/107141\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media?parent=107141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/categories?post=107141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/tags?post=107141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}