{"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\/cs\/blog\/news\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","title":{"rendered":"Zranitelnost v libinput, kter\u00e1 umo\u017e\u0148uje zv\u00fd\u0161en\u00ed opr\u00e1vn\u011bn\u00ed v syst\u00e9mu.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V knihovn\u011b libinput, kter\u00e1 poskytuje sjednocen\u00fd vstupn\u00ed stack pro Wayland a X.Org Server, byla nalezena zranitelnost (CVE nebyl p\u0159i\u0159azen), kter\u00e1 umo\u017e\u0148uje spu\u0161t\u011bn\u00ed k\u00f3du s pr\u00e1vy roota prost\u0159ednictv\u00edm p\u0159ipojen\u00ed lok\u00e1ln\u00edho u\u017eivatele k virtu\u00e1ln\u00edmu vstupn\u00edmu za\u0159\u00edzen\u00ed simulovan\u00e9mu v u\u017eivatelsk\u00e9m prostoru pomoc\u00ed uinput nebo uhid. Probl\u00e9m byl vy\u0159e\u0161en ve verz\u00edch 1.31.3 a 1.30.4.<\/p>\n

Zranitelnost je p\u0159\u00edtomna v udev zpracovateli libinput-device-group a
\nbyla zp\u016fsobena nedostate\u010dn\u00fdm escapingem speci\u00e1ln\u00edch znak\u016f v atributech, z\u00edskan\u00fdch z za\u0159\u00edzen\u00ed a p\u0159ed\u00e1van\u00fdch do subsyst\u00e9mu udev ve form\u00e1tu \u201ekl\u00ed\u010d=hodnota\u201c. Pomoc\u00ed substituce znaku nov\u00e9ho \u0159\u00e1dku (\u201e\n\u201c) do atributu lze dos\u00e1hnout p\u0159id\u00e1n\u00ed vlastn\u00ed udev pravidla, nap\u0159\u00edklad proveden\u00edm p\u0159\u00edkazu uinput UI_SET_PHYS(\u201epoc\n=\u201c). Pro spou\u0161t\u011bn\u00ed libovoln\u00fdch p\u0159\u00edkaz\u016f s pr\u00e1vy root sta\u010d\u00ed podobn\u00fdm zp\u016fsobem vlo\u017eit udev pravidlo s vlastnost\u00ed \u201eREMOVE_CMD\u201c, kter\u00e9 spust\u00ed zadan\u00fd p\u0159\u00edkaz po odpojen\u00ed za\u0159\u00edzen\u00ed.<\/p>\n

K vyu\u017eit\u00ed zranitelnosti mus\u00ed \u00fato\u010dn\u00edk m\u00edt p\u0159\u00edstup k za\u0159\u00edzen\u00ed \/dev\/uinput nebo \/dev\/uhid. Obvykle m\u00e1 p\u0159\u00edstup k uinput a uhid pouze u\u017eivatel root, ale v n\u011bkter\u00fdch distribuc\u00edch jsou dod\u00e1v\u00e1na udev pravidla, kter\u00e1 umo\u017e\u0148uj\u00ed nep\u0159ihla\u0161ovan\u00fdm u\u017eivatel\u016fm pou\u017e\u00edvat uinput. Nap\u0159\u00edklad v Fedo\u0159e se tato pravidla instaluj\u00ed p\u0159i instalaci bal\u00ed\u010dk\u016f 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\udd47Zranitelnost v libinput, kter\u00e1 umo\u017e\u0148uje zv\u00fd\u0161it sv\u00e9 privilegium v syst\u00e9mu | ProHoster","description":"V knihovn\u011b libinput, kter\u00e1 poskytuje sjednocen\u00fd vstupn\u00ed stack pro Wayland a X.Org Server, byla nalezena zranitelnost (CVE nebyl p\u0159i\u0159azen), kter\u00e1 umo\u017e\u0148uje spu\u0161t\u011bn\u00ed k\u00f3du s pr\u00e1vy roota prost\u0159ednictv\u00edm p\u0159ipojen\u00ed lok\u00e1ln\u00edho.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","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 libinput, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f 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