{"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\/es\/blog\/news\/uyazvimost-v-libinput-pozvolyayushhaya-povysit-svoi-privilegii-v-sisteme","title":{"rendered":"Vulnerabilidad en libinput que permite elevar privilegios en el sistema","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se ha descubierto una vulnerabilidad en la biblioteca libinput, que proporciona una pila de entrada unificada para Wayland y X.Org Server (CVE no asignado), permitiendo la ejecuci\u00f3n de c\u00f3digo con privilegios de root a trav\u00e9s de la conexi\u00f3n de un usuario local a un dispositivo de entrada virtual simulado en el espacio de usuario a trav\u00e9s de uinput o uhid. El problema se ha corregido en las versiones 1.31.3 y 1.30.4.<\/p>\n<p>La vulnerabilidad est\u00e1 presente en el controlador udev de libinput-device-group y<br \/>\nse debe a la falta de correcta escape de caracteres especiales en los atributos que se obtienen de los dispositivos y se transmiten al subsistema udev en forma de \u00abclave=valor\u00bb. Al sustituir el car\u00e1cter de nueva l\u00ednea (\u00ab\n\u00bb) en el atributo, se puede lograr agregar una regla de udev personalizada, por ejemplo, mediante la ejecuci\u00f3n del comando uinput UI_SET_PHYS(\u00abpoc\n=\u00bb). Para ejecutar comandos arbitrarios con privilegios de root, es suficiente con sustituir de esta manera una regla de udev con la propiedad \u00abREMOVE_CMD\u00bb, que ejecutar\u00e1 el comando especificado despu\u00e9s de desconectar el dispositivo.<\/p>\n<p>Para explotar la vulnerabilidad, el atacante debe tener acceso al dispositivo \/dev\/uinput o \/dev\/uhid. Normalmente, el acceso a uinput y uhid solo lo tiene el usuario root, pero en algunas distribuciones se incluyen reglas de udev que permiten a los usuarios no privilegiados usar uinput. Por ejemplo, en Fedora, se configuran reglas similares al instalar los paquetes steam-devices, antimicrox y kdeconnectd. Hay un prototipo de exploit disponible.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65615\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&hellip;]<\/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<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 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