{"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\/sk\/blog\/news\/uyazvimosti-v-etalonnoj-realizaczii-tpm-2-0-pozvolyayushhie-poluchit-dostup-k-dannym-v-kriptochipe","title":{"rendered":"Zranite\u013enosti v referen\u010dnej implement\u00e1cii TPM 2.0, ktor\u00e9 umo\u017e\u0148uj\u00fa z\u00edska\u0165 pr\u00edstup k \u00fadajom v kryptocipov","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Vo vzore k\u00f3du implement\u00e1cie \u0161pecifik\u00e1cie TPM 2.0 (Trusted Platform Module) boli zisten\u00e9 zranite\u013enosti (CVE-2023-1017, CVE-2023-1018), ktor\u00e9 ved\u00fa k z\u00e1pisu alebo \u010d\u00edtaniu \u00fadajov mimo pridelen\u00e9ho vyrovn\u00e1vacieho priestoru. \u00datok na implement\u00e1cie kryptoprocesorov, ktor\u00e9 pou\u017e\u00edvaj\u00fa zranite\u013en\u00fd k\u00f3d, m\u00f4\u017ee vies\u0165 k extrakcii alebo prep\u00edsaniu inform\u00e1ci\u00ed ulo\u017een\u00fdch na \u010dipe, ako s\u00fa kryptografick\u00e9 k\u013e\u00fa\u010de. Mo\u017enos\u0165 prep\u00edsa\u0165 \u00fadaje vo firme TPM m\u00f4\u017ee by\u0165 vyu\u017eit\u00e1 \u00fato\u010dn\u00edkom na vykonanie vlastn\u00e9ho k\u00f3du v kontexte TPM, \u010do m\u00f4\u017ee napr\u00edklad sl\u00fa\u017ei\u0165 na realiz\u00e1ciu zadn\u00fdch vr\u00e1tok, ktor\u00e9 funguj\u00fa na strane TPM a nie s\u00fa detekovate\u013en\u00e9 z opera\u010dn\u00e9ho syst\u00e9mu. <\/p>\n

Zranite\u013enosti s\u00fa sp\u00f4soben\u00e9 nespr\u00e1vnou kontrolou ve\u013ekosti parametrov funkcie CryptParameterDecryption(), ktor\u00e1 umo\u017e\u0148uje z\u00e1pis alebo \u010d\u00edtanie dvoch bajtov mimo vyrovn\u00e1vacieho priestoru pred\u00e1van\u00e9ho do funkcie ExecuteCommand() a obsahuj\u00faceho pr\u00edkaz TPM2.0. V z\u00e1vislosti od implement\u00e1cie firmv\u00e9ru m\u00f4\u017eu prep\u00edsan\u00e9 dva bajty po\u0161kodi\u0165 ako nepou\u017e\u00edvan\u00fa pam\u00e4\u0165, tak d\u00e1ta alebo ukazovatele na z\u00e1sobn\u00edku. <\/p>\n

Exploat\u00e1cia zranite\u013enosti sa uskuto\u010d\u0148uje prostredn\u00edctvom zasielania \u0161peci\u00e1lne vytvoren\u00fdch pr\u00edkazov modulu TPM (\u00fato\u010dn\u00edk mus\u00ed ma\u0165 pr\u00edstup k rozhraniu TPM). Probl\u00e9my boli odstr\u00e1nen\u00e9 v janu\u00e1rovom aktualiz\u00e1cii \u0161pecifik\u00e1cie TPM 2.0 (1.59 Errata 1.4, 1.38 Errata 1.13, 1.16 Errata 1.6). <\/p>\n

Zranite\u013enosti sa tie\u017e t\u00fdkaj\u00fa otvorenej kni\u017enice libtpms, ktor\u00e1 sa pou\u017e\u00edva na softv\u00e9rov\u00fa emul\u00e1ciu modulov TPM a integr\u00e1ciu podpory TPM do hyperv\u00edzorov. Zranite\u013enos\u0165 bola odstr\u00e1nen\u00e1 vo vydan\u00ed 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, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u044b\u0439 \u043a\u043e\u0434, \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0438\u0437\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u044e \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0445\u0440\u0430\u043d\u044f\u0449\u0435\u0439\u0441\u044f \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0447\u0438\u043f\u0430 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438, \u0442\u0430\u043a\u043e\u0439 \u043a\u0430\u043a \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043a\u043b\u044e\u0447\u0438. \u0412\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0435 TPM \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\udd47Zranite\u013enosti v referen\u010dnej implement\u00e1cii TPM 2.0, ktor\u00e9 umo\u017e\u0148uj\u00fa pr\u00edstup k \u00fadajom v kryptoprocesore | ProHoster","description":"Vo vzore k\u00f3du implement\u00e1cie \u0161pecifik\u00e1cie TPM 2.0 (Trusted Platform Module) boli zisten\u00e9 zranite\u013enosti (CVE-2023-1017, CVE-2023-1018), ktor\u00e9 ved\u00fa k z\u00e1pisu alebo \u010d\u00edtaniu \u00fadajov mimo pridelen\u00e9ho vyrovn\u00e1vacieho priestoru.","canonical_url":"https:\/\/prohoster.info\/sk\/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":"sk_SK","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\/sk\/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\/sk\/wp-json\/wp\/v2\/posts\/107141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=107141"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/107141\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=107141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=107141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=107141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}