{"id":181898,"date":"2026-06-04T14:48:17","date_gmt":"2026-06-04T12:48:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme"},"modified":"2026-06-04T14:48:17","modified_gmt":"2026-06-04T12:48:17","slug":"uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","title":{"rendered":"Zranite\u013enos\u0165 v libinput, ktor\u00e1 umo\u017e\u0148uje zv\u00fd\u0161i\u0165 svoje opr\u00e1vnenia v syst\u00e9me","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V kni\u017enici libinput, ktor\u00e1 poskytuje zjednoten\u00fa vstupn\u00fa platformu pre Wayland a X.Org Server, bola zisten\u00e1 zranite\u013enos\u0165 (CVE nebol pridelen\u00fd), umo\u017e\u0148uj\u00faca vykon\u00e1vanie k\u00f3du s pr\u00e1vami root cez pripojenie lok\u00e1lneho pou\u017e\u00edvate\u013ea k virtu\u00e1lnemu vstupn\u00e9mu zariadeniu simulovan\u00e9mu v u\u017e\u00edvate\u013eskom priestore cez uinput alebo uhid. Probl\u00e9m bol odstr\u00e1nen\u00fd vo verzi\u00e1ch 1.31.3 a 1.30.4.<\/p>\n

Zranite\u013enos\u0165 je pr\u00edtomn\u00e1 v udev spracovate\u013eovi libinput-device-group a
\nje sp\u00f4soben\u00e1 nedostato\u010dn\u00fdm escapingom \u0161peci\u00e1lnych znakov v atrib\u00fatoch z\u00edskan\u00fdch z zariaden\u00ed a pren\u00e1\u0161an\u00fdch do subsyst\u00e9mu udev vo forme «k\u013e\u00fa\u010d=hodnota». Ce\u010f pomocou substit\u00facie znaku pre nov\u00fd riadok («\n») do atrib\u00fatu, je mo\u017en\u00e9 dosiahnu\u0165 pridanie vlastn\u00e9ho pravidla udev, napr\u00edklad vykonan\u00edm pr\u00edkazu uinput UI_SET_PHYS(«poc\n<DRUH\u00dd_K\u013d\u00da\u010c>=<hodnota>»). Na vykonanie \u013eubovo\u013en\u00fdch pr\u00edkazov s opr\u00e1vneniami root je potrebn\u00e9 takto vlo\u017ei\u0165 pravidlo udev s vlastnos\u0165ou «REMOVE_CMD», ktor\u00e1 spust\u00ed uveden\u00fd pr\u00edkaz po odpojen\u00ed zariadenia.<\/p>\n

Na zneu\u017eitie zranite\u013enosti mus\u00ed \u00fato\u010dn\u00edk ma\u0165 pr\u00edstup k zariadeniu \/dev\/uinput alebo \/dev\/uhid. Spravidla m\u00e1 pr\u00edstup k uinput a uhid iba pou\u017e\u00edvate\u013e root, ale v niektor\u00fdch distrib\u00faci\u00e1ch s\u00fa dod\u00e1van\u00e9 pravidl\u00e1 udev, ktor\u00e9 umo\u017e\u0148uj\u00fa neopr\u00e1vnen\u00fdm pou\u017e\u00edvate\u013eom pou\u017e\u00edva\u0165 uinput. Napr\u00edklad v Fedore s\u00fa tak\u00e9to pravidl\u00e1 nastaven\u00e9 pri in\u0161tal\u00e1cii bal\u00edkov steam-devices, antimicrox a kdeconnectd. Je dostupn\u00fd prototyp exploitu.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 libinput, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0443\u043d\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0442\u0435\u043a \u0432\u0432\u043e\u0434\u0430 \u0434\u043b\u044f Wayland \u0438 X.Org Server, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE \u043d\u0435 \u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0432\u0432\u043e\u0434\u0430, \u0441\u044d\u043c\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0432 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u043c \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435 \u0447\u0435\u0440\u0435\u0437 uinput \u0438\u043b\u0438 uhid. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 1.31.3 \u0438 1.30.4. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 udev-\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0435 libinput-device-group \u0438 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0434\u043e\u043b\u0436\u043d\u043e\u0433\u043e […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181898","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\u013enos\u0165 v libinput, ktor\u00e1 umo\u017e\u0148uje zv\u00fd\u0161i\u0165 vlastn\u00edcke pr\u00e1va v syst\u00e9me | ProHoster","description":"V kni\u017enici libinput, ktor\u00e1 poskytuje zjednoten\u00fa vstupn\u00fa platformu pre Wayland a X.Org Server, bola zisten\u00e1 zranite\u013enos\u0165 (CVE nebol pridelen\u00fd), umo\u017e\u0148uj\u00faca vykon\u00e1vanie k\u00f3du s pr\u00e1vami root cez pripojenie lok\u00e1lneho.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","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\u044c \u0432 libinput, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f 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