{"id":39040,"date":"2019-10-31T22:27:31","date_gmt":"2019-10-31T19:27:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek\/"},"modified":"2019-10-31T22:27:31","modified_gmt":"2019-10-31T19:27:31","slug":"udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","title":{"rendered":"Vzdialen\u00e1 zranite\u013enos\u0165 v ovl\u00e1da\u010di Linuxu pre \u010dipy Realtek","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V ovl\u00e1da\u010di, ktor\u00fd je s\u00fa\u010das\u0165ou jadra Linux rtlwifi<\/a><\/noindex> pre bezdr\u00f4tov\u00e9 adapt\u00e9ry na \u010dipoch Realtek bola zisten\u00e1<\/a><\/noindex> zranite\u013enos\u0165 (CVE-2019-17666<\/a><\/noindex>), ktor\u00e1 by mohla by\u0165 potenci\u00e1lne zneu\u017eit\u00e1 na vykonanie k\u00f3du v kontexte jadra pri posielan\u00ed \u0161peci\u00e1lne naform\u00e1tovan\u00fdch r\u00e1m\u010dekov.<\/p>\n

Zranite\u013enos\u0165 je sp\u00f4soben\u00e1 preplnen\u00edm z\u00e1sobn\u00edka v k\u00f3de pre implement\u00e1ciu re\u017eimu P2P (Wifi-Direct). Pri anal\u00fdze r\u00e1m\u010dekov NoA<\/a><\/noindex> (Notice of Absence) ch\u00fdba kontrola ve\u013ekosti jednej z hodn\u00f4t, \u010do umo\u017e\u0148uje dosiahnu\u0165 z\u00e1pis \u00fadajov za hranicami z\u00e1sobn\u00edka a prep\u00edsa\u0165 inform\u00e1cie v nasleduj\u00facich \u0161trukt\u00farach jadra za z\u00e1sobn\u00edkom.<\/p>\n

\u00datok m\u00f4\u017ee by\u0165 vykonan\u00fd zaslan\u00edm \u0161peci\u00e1lne naform\u00e1tovan\u00fdch r\u00e1m\u010dekov na syst\u00e9m s akt\u00edvnym sie\u0165ov\u00fdm adapt\u00e9rom na b\u00e1ze \u010dipu Realtek s podporou technol\u00f3gie Wi-Fi Direct<\/a><\/noindex>, umo\u017e\u0148uj\u00facej dvom bezdr\u00f4tov\u00fdm adapt\u00e9rmi nadviaza\u0165 priamu spojenie bez pr\u00edstupov\u00e9ho bodu. Na zneu\u017eitie probl\u00e9mu nie je potrebn\u00e9 pripojenie k bezdr\u00f4tovej sieti \u00fato\u010dn\u00edka, ani ak\u00e9ko\u013evek akcie zo strany pou\u017e\u00edvate\u013ea, sta\u010d\u00ed, aby sa \u00fato\u010dn\u00edk nach\u00e1dzal v z\u00f3ne pokrytia bezdr\u00f4tov\u00e9ho sign\u00e1lu. <\/p>\n

Pracovn\u00fd prototyp exploit-u je zatia\u013e obmedzen\u00fd na vzdialen\u00e9 vyvolanie zlyhania jadra, ale potenci\u00e1lne zranite\u013enos\u0165 nevylu\u010duje mo\u017enos\u0165 vykonania k\u00f3du (doteraz ide len o teoretick\u00e9 predpoklady, preto\u017ee neexistuje prototyp exploit-u na vykonanie k\u00f3du, ale v\u00fdskumn\u00edk, ktor\u00fd probl\u00e9m odhalil, u\u017e pracuje<\/a><\/noindex> na jeho vytvoren\u00ed).<\/p>\n

Probl\u00e9m sa objavuje od jadra 3.12<\/a><\/noindex> (pod\u013ea in\u00fdch \u00fadajov, probl\u00e9m sa objavuje od jadra 3.10<\/a><\/noindex>), vydan\u00e9ho v roku 2013. Oprava je zatia\u013e k dispoz\u00edcii iba vo forme patchu<\/a><\/noindex>. V distrib\u00faci\u00e1ch probl\u00e9m zost\u00e1va neopravene.
\nSledova\u0165 odstra\u0148ovanie zranite\u013enost\u00ed v distrib\u00faci\u00e1ch je mo\u017en\u00e9 na t\u00fdchto str\u00e1nkach: Debian<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, RHEL<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, Arch Linux<\/a><\/noindex>, Fedora<\/a><\/noindex>. Pravdepodobne zranite\u013enos\u0165 postihuje aj t\u00fdka<\/a><\/noindex> platformu Android.<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412\u043e \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0435 rtlwifi \u0434\u043b\u044f \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u043e\u0432 \u043d\u0430 \u0447\u0438\u043f\u0430\u0445 Realtek \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2019-17666), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0435 \u044f\u0434\u0440\u0430 \u043f\u0440\u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u043a\u0430\u0434\u0440\u043e\u0432. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043a\u043e\u0434\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0435\u0436\u0438\u043c\u0430 P2P (Wifi-Direct). \u041f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u043a\u0430\u0434\u0440\u043e\u0432 NoA (Notice of Absence) \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 […]<\/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-39040","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\udd47Vzdialen\u00e1 zranite\u013enos\u0165 v Linuxovom ovl\u00e1da\u010di pre \u010dipy Realtek | ProHoster","description":"V ovl\u00e1da\u010di, ktor\u00fd je s\u00fa\u010das\u0165ou jadra Linux, rtlwifi pre bezdr\u00f4tov\u00e9 adapt\u00e9ry na \u010dipoch.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","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\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u043c\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Linux-\u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0435 \u0434\u043b\u044f \u0447\u0438\u043f\u043e\u0432 Realtek | ProHoster","og:description":"\u0412\u043e \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0435 rtlwifi \u0434\u043b\u044f \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u043e\u0432 \u043d\u0430 \u0447\u0438\u043f\u0430\u0445.","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","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":"2019-10-31T19:27:31+00:00","article:modified_time":"2019-10-31T19:27:31+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"39040","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":null,"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":"2026-01-24 00:30:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 00:58:37","updated":"2026-01-24 00:30:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/39040","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=39040"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/39040\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=39040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=39040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=39040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}