{"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\/cs\/blog\/news\/uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","title":{"rendered":"Zranitelnosti v referen\u010dn\u00ed implementaci TPM 2.0, kter\u00e9 umo\u017e\u0148uj\u00ed p\u0159\u00edstup k dat\u016fm v krypto\u010dipu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V k\u00f3du s referen\u010dn\u00ed implementac\u00ed specifikace TPM 2.0 (Trusted Platform Module) byly zji\u0161t\u011bny zranitelnosti (CVE-2023-1017, CVE-2023-1018), kter\u00e9 vedou k z\u00e1pisu nebo \u010dten\u00ed dat mimo vyhrazen\u00fd buffer. \u00datok na implementace kryptoprocesor\u016f vyu\u017e\u00edvaj\u00edc\u00ed zraniteln\u00fd k\u00f3d m\u016f\u017ee v\u00e9st k extrahov\u00e1n\u00ed nebo p\u0159eps\u00e1n\u00ed informac\u00ed ulo\u017een\u00fdch na \u010dipu, jako jsou kryptografick\u00e9 kl\u00ed\u010de. Mo\u017enost p\u0159eps\u00e1n\u00ed dat ve firmware TPM m\u016f\u017ee b\u00fdt vyu\u017eita \u00fato\u010dn\u00edkem k tomu, aby provedl sv\u016fj k\u00f3d v kontextu TPM, co\u017e m\u016f\u017ee b\u00fdt nap\u0159\u00edklad pou\u017eito k implementaci zadn\u00edch vrat, kter\u00e1 funguj\u00ed na stran\u011b TPM a nejsou detekovateln\u00e1 z opera\u010dn\u00edho syst\u00e9mu. <\/p>\n

Zranitelnosti jsou zp\u016fsobeny nespr\u00e1vnou kontrolou velikosti parametr\u016f funkce CryptParameterDecryption(), co\u017e umo\u017e\u0148uje z\u00e1pis nebo \u010dten\u00ed dvou byt\u016f mimo buffer p\u0159ed\u00e1van\u00fd funkci ExecuteCommand() a obsahuj\u00edc\u00ed p\u0159\u00edkaz TPM 2.0. V z\u00e1vislosti na implementaci firmware mohou b\u00fdt p\u0159episovan\u00e9 dva byty po\u0161kozeny jak nevyu\u017e\u00edvanou pam\u011bt\u00ed, tak daty nebo ukazateli na z\u00e1sobn\u00edku. <\/p>\n

Exploatace zranitelnosti je realizov\u00e1na zas\u00edl\u00e1n\u00edm speci\u00e1ln\u011b form\u00e1tovan\u00fdch p\u0159\u00edkaz\u016f TPM modulu (\u00fato\u010dn\u00edk mus\u00ed m\u00edt p\u0159\u00edstup k rozhran\u00ed TPM). Probl\u00e9my byly odstran\u011bny v aktualizaci specifikace TPM 2.0 vydan\u00e9 v lednu (1.59 Errata 1.4, 1.38 Errata 1.13, 1.16 Errata 1.6). <\/p>\n

Zranitelnosti je tak\u00e9 vystavena otev\u0159en\u00e1 knihovna libtpms, pou\u017e\u00edvan\u00e1 pro softwarovou emulaci modul\u016f TPM a integraci podpory TPM do hypervisor\u016f. Zranitelnost byla odstran\u011bna ve verzi libtpms 0.9.6.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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. \u0410\u0442\u0430\u043a\u0430 \u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u0440\u0438\u043f\u0442\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432, 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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\udd47 Zranitelnosti v referen\u010dn\u00ed implementaci TPM 2.0, kter\u00e9 umo\u017e\u0148uj\u00ed p\u0159\u00edstup k dat\u016fm v krypto\u010dipu | ProHoster","description":"V k\u00f3du s referen\u010dn\u00ed implementac\u00ed specifikace TPM 2.0 (Trusted Platform Module) byly zji\u0161t\u011bny zranitelnosti (CVE-2023-1017, CVE-2023-1018), kter\u00e9 vedou k z\u00e1pisu nebo \u010dten\u00ed dat mimo vyhrazen\u00fd buffer.","canonical_url":"https:\/\/prohoster.info\/cs\/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":"cs_CZ","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\/cs\/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\/cs\/wp-json\/wp\/v2\/posts\/107141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=107141"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/107141\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=107141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=107141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=107141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}