{"id":108679,"date":"2023-05-24T12:48:24","date_gmt":"2023-05-24T10:48:24","guid":{"rendered":"https:\/\/prohoster.info\/?p=108679"},"modified":"2023-05-24T16:23:54","modified_gmt":"2023-05-24T14:23:54","slug":"uyazvimost-v-marshrutizatorah-mikrotik-privodyashhaya-k-vypolneniyu-koda-pri-obrabotke-ipv6-ra","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimost-v-marshrutizatorah-mikrotik-privodyashhaya-k-vypolneniyu-koda-pri-obrabotke-ipv6-ra","title":{"rendered":"Zranitelnost v routerech MikroTik, kter\u00e1 vede k vykon\u00e1n\u00ed k\u00f3du p\u0159i zpracov\u00e1n\u00ed IPv6 RA.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V opera\u010dn\u00edm syst\u00e9mu RouterOS, pou\u017e\u00edvan\u00e9m v routerech MikroTik, byla zji\u0161t\u011bna kritick\u00e1 zranitelnost (CVE-2023-32154), kter\u00e1 umo\u017e\u0148uje neopr\u00e1vn\u011bn\u00fdm u\u017eivatel\u016fm vzd\u00e1len\u011b vykon\u00e1vat k\u00f3d na za\u0159\u00edzen\u00ed zasl\u00e1n\u00edm speci\u00e1ln\u011b upraven\u00e9 inzerce routeru IPv6 (RA, Router Advertisement). <\/p>\n

Probl\u00e9m je zp\u016fsoben nedostate\u010dnou kontrolou p\u0159ich\u00e1zej\u00edc\u00edch extern\u00edch dat v procesu odpov\u00eddaj\u00edc\u00edm za zpracov\u00e1n\u00ed po\u017eadavk\u016f IPv6 RA (Router Advertisement), co\u017e umo\u017enilo zapisovat data za hranici vyhrazen\u00e9ho bufferu a organizovat vykon\u00e1v\u00e1n\u00ed vlastn\u00edho k\u00f3du s privilegii root. Zranitelnost se projevuje ve vetv\u00edch MikroTik RouterOS verze v6.xx a v7.xx, p\u0159i zapnut\u00ed v nastaven\u00ed p\u0159ij\u00edm\u00e1n\u00ed zpr\u00e1v IPv6 RA (\u201eipv6\/settings\/set accept-router-advertisements=yes\u201c nebo \u201eipv6\/settings\/set forward=no accept-router-advertisements=yes-if-forwarding-disabled\u201c). <\/p>\n

Mo\u017enost praktick\u00e9ho zneu\u017eit\u00ed zranitelnosti byla demonstrov\u00e1na na sout\u011b\u017e\u00edch Pwn2Own v Torontu, kde v\u00fdzkumn\u00edci upozor\u0148uj\u00edc\u00ed na probl\u00e9m z\u00edskali odm\u011bnu 100 000 USD za v\u00edcestup\u0148ov\u00fd hack infrastruktury s \u00fatokem na router Mikrotik a jeho vyu\u017eit\u00edm jako odrazov\u00e9ho m\u016fstku pro \u00fatoky na dal\u0161\u00ed komponenty m\u00edstn\u00ed s\u00edt\u011b (n\u00e1sledn\u011b \u00fato\u010dn\u00edci z\u00edskali kontrolu nad tisk\u00e1rnou Canon, jej\u00ed\u017e zranitelnost byla rovn\u011b\u017e zve\u0159ejn\u011bna). <\/p>\n

Informace o zranitelnosti byla p\u016fvodn\u011b zve\u0159ejn\u011bna p\u0159ed vyd\u00e1n\u00edm opravy v\u00fdrobcem (0-day), av\u0161ak v sou\u010dasnosti u\u017e byla publikov\u00e1na aktualizace RouterOS 7.9.1, 6.49.8, 6.48.7, 7.10beta8 s odstran\u011bn\u00edm zranitelnosti. Podle informac\u00ed od projektu ZDI (Zero Day Initiative), kter\u00fd po\u0159\u00e1d\u00e1 sout\u011b\u017ee Pwn2Own, byl v\u00fdrobce o zranitelnosti informov\u00e1n 29. prosince 2022. Z\u00e1stupci MikroTik tvrd\u00ed, \u017ee nebyli informov\u00e1ni a o probl\u00e9mu se dozv\u011bd\u011bli a\u017e 10. kv\u011btna, po zasl\u00e1n\u00ed kone\u010dn\u00e9ho varov\u00e1n\u00ed o zve\u0159ejn\u011bn\u00ed informac\u00ed. Nav\u00edc ve zpr\u00e1v\u011b o zranitelnosti je zm\u00edn\u011bno, \u017ee informace o povaze probl\u00e9mu byla sd\u011blena z\u00e1stupci MikroTik osobn\u011b b\u011bhem sout\u011b\u017ee Pwn2Own v Torontu, av\u0161ak podle prohl\u00e1\u0161en\u00ed MikroTik se zam\u011bstnanci spole\u010dnosti na akci nijak nepod\u00edleli.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 RouterOS, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430\u0445 MikroTik, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-32154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0435 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0430\u043d\u043e\u043d\u0441\u0430 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430 IPv6 (RA, Router Advertisement). \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0434\u043e\u043b\u0436\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0445 \u0438\u0437\u0432\u043d\u0435 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435, \u043e\u0442\u0432\u0435\u0447\u0430\u044e\u0449\u0435\u043c \u0437\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 IPv6 RA (Router Advertisement), \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0437\u0430\u043f\u0438\u0441\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0443 […]<\/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-108679","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\udd47Zranitelnost v sm\u011brova\u010d\u00edch MikroTik, kter\u00e1 vede k proveden\u00ed k\u00f3du p\u0159i zpracov\u00e1n\u00ed IPv6 RA | ProHoster","description":"V opera\u010dn\u00edm syst\u00e9mu RouterOS, pou\u017e\u00edvan\u00e9m v routerech MikroTik, byla zji\u0161t\u011bna kritick\u00e1 zranitelnost (CVE-2023-32154), kter\u00e1 umo\u017e\u0148uje neopr\u00e1vn\u011bn\u00fdm u\u017eivatel\u016fm vzd\u00e1len\u011b vykon\u00e1vat k\u00f3d na za\u0159\u00edzen\u00ed prost\u0159ednictv\u00edm.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimost-v-marshrutizatorah-mikrotik-privodyashhaya-k-vypolneniyu-koda-pri-obrabotke-ipv6-ra","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\u044c \u0432 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430\u0445 MikroTik, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 IPv6 RA | ProHoster","og:description":"\u0412 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 RouterOS, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430\u0445 MikroTik, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-32154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0435 \u0447\u0435\u0440\u0435\u0437.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimost-v-marshrutizatorah-mikrotik-privodyashhaya-k-vypolneniyu-koda-pri-obrabotke-ipv6-ra","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":"2023-05-24T10:48:24+00:00","article:modified_time":"2023-05-24T14:23:54+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\/108679","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=108679"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/108679\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=108679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=108679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=108679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}