{"id":117002,"date":"2024-07-06T21:43:04","date_gmt":"2024-07-06T19:43:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-darknete-poyavilas-informacziya-chto-grub-skomprometirovan"},"modified":"2024-07-06T21:43:04","modified_gmt":"2024-07-06T19:43:04","slug":"v-darknete-poyavilas-informacziya-chto-grub-skomprometirovan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/v-darknete-poyavilas-informacziya-chto-grub-skomprometirovan","title":{"rendered":"Na dark webe sa objavili inform\u00e1cie, \u017ee GRUB bol skompromitovan\u00fd","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Na <\/p>\n

Exploitat pre 0day zranite\u013enos\u0165 sa u\u017e pred\u00e1va na pr\u00edslu\u0161n\u00fdch f\u00f3rach.<\/p>\n

21. j\u00fana sa na jednom z f\u00f3r objavili inform\u00e1cie o predaji exploitu pre zranite\u013enos\u0165 nulov\u00e9ho d\u0148a v GRUB zav\u00e1dza\u010di Linuxu, \u010do umo\u017e\u0148uje lok\u00e1lne zv\u00fd\u0161enie privilegi\u00ed (LPE).<\/p>\n

Pod\u013ea inform\u00e1ci\u00ed Dark Web Intelligence, \u00fato\u010dn\u00edk tvrd\u00ed, \u017ee na\u0161iel zranite\u013enos\u0165 v GRUB, ktor\u00e1 umo\u017e\u0148uje ob\u00eds\u0165 autentifika\u010dn\u00e9 mechanizmy a z\u00edska\u0165 pr\u00e1va root na syst\u00e9me.<\/p>\n

Pod\u013ea spr\u00e1vy \u00fa\u010dastn\u00edka temn\u00e9ho f\u00f3ra s prez\u00fdvkou \u201eCas\u201c, zranite\u013enos\u0165 zasahuje GRUB \u2014 kritick\u00fa s\u00fa\u010das\u0165 v\u00e4\u010d\u0161iny Linux syst\u00e9mov, ktor\u00e1 riadi bootovac\u00ed proces, \u010do \u00fato\u010dn\u00edkom umo\u017e\u0148uje in\u0161talova\u0165 skryt\u00e9 a odoln\u00e9 \u0161kodliv\u00e9 programy, ktor\u00e9 je ve\u013emi \u0165a\u017ek\u00e9 objavi\u0165 a odstr\u00e1ni\u0165. Exploit sa pred\u00e1va za cenu 90-tis\u00edc dol\u00e1rov.<\/p>\n

Treba poznamena\u0165, \u017ee GRUB sa u\u017e v minulosti stal cie\u013eom \u00fatokov. V roku 2015 bola objaven\u00e1 zranite\u013enos\u0165 CVE-2015-8370, ktor\u00e1 umo\u017enila ob\u00eds\u0165 autentifik\u00e1ciu stla\u010den\u00edm kl\u00e1vesy backspace 28-kr\u00e1t po\u010das zad\u00e1vania pou\u017e\u00edvate\u013esk\u00e9ho mena v GRUB. T\u00e1to zranite\u013enos\u0165 zasiahla verzie GRUB od 1.98 do 2.02 a bola \u0161iroko vyu\u017e\u00edvan\u00e1 a\u017e do vydania patchu. V roku 2020 bola odhalen\u00e1 \u010fal\u0161ia zranite\u013enos\u0165 \u2014 CVE-2020-10713, zn\u00e1ma aj ako BootHole, ktor\u00e1 umo\u017enila in\u0161talova\u0165 \u0161kodliv\u00fd softv\u00e9r po\u010das bootovania.<\/p>\n

Hlavn\u00e9 distrib\u00facie Linuxu, ako s\u00fa Debian, RedHat a Ubuntu, r\u00fdchlo vydali odpor\u00fa\u010dania a patchy pre predch\u00e1dzaj\u00face zranite\u013enosti GRUB a pravdepodobne tak spravia aj teraz, av\u0161ak probl\u00e9m je umocnen\u00fd t\u00fdm, \u017ee zranite\u013enos\u0165 objavili \u00fato\u010dn\u00edci, nie etick\u00ed hackeri. To znamen\u00e1, \u017ee jej objavenie a oprava bezpe\u010dnostn\u00fdmi v\u00fdskumn\u00edkmi sa m\u00f4\u017ee zna\u010dne oneskori\u0165.<\/p>\n

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

\u042d\u043a\u0441\u043f\u043b\u043e\u0439\u0442 \u0434\u043b\u044f 0day-\u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0443\u0436\u0435 \u043f\u0440\u043e\u0434\u0430\u0451\u0442\u0441\u044f \u043d\u0430 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0444\u043e\u0440\u0443\u043c\u0430\u0445. 21 \u0438\u044e\u043d\u044f \u043d\u0430 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 \u0444\u043e\u0440\u0443\u043c\u043e\u0432 \u043f\u043e\u044f\u0432\u0438\u043b\u0430\u0441\u044c \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e \u043f\u0440\u043e\u0434\u0430\u0436\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430 \u043a \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043d\u0443\u043b\u0435\u0432\u043e\u0433\u043e \u0434\u043d\u044f \u0432 GRUB-\u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 (LPE). \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c Dark Web Intelligence, \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0435\u0442, \u0447\u0442\u043e \u043d\u0430\u0448\u0451\u043b \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 GRUB, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0431\u043e\u0439\u0442\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u044b \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u0440\u0430\u0432\u0430 root \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u0421\u043e\u0433\u043b\u0430\u0441\u043d\u043e […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":117003,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-117002","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Na dark webe sa objavili inform\u00e1cie, \u017ee GRUB bol skompromitovan\u00fd | ProHoster","description":"Exploit pre 0day zranite\u013enos\u0165 u\u017e 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