{"id":99452,"date":"2021-03-16T22:22:42","date_gmt":"2021-03-16T20:22:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-tor-s-ustraneniem-uyazvimostej"},"modified":"2021-03-16T22:22:42","modified_gmt":"2021-03-16T20:22:42","slug":"obnovlenie-tor-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/obnovlenie-tor-s-ustraneniem-uyazvimostej","title":{"rendered":"Actualizaci\u00f3n de Tor corrigiendo vulnerabilidades","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se han presentado actualizaciones correctivas para el conjunto de herramientas Tor (0.3.5.14, 0.4.4.8, 0.4.5.7), utilizado para organizar el funcionamiento de la red an\u00f3nima Tor. En las nuevas versiones se han corregido dos vulnerabilidades que pueden ser utilizadas para llevar a cabo ataques DoS en nodos de la red Tor:    <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-28089 \u2014 un atacante puede causar una denegaci\u00f3n de servicio en cualquier nodo y cliente de Tor mediante la creaci\u00f3n de una carga excesiva en la CPU, que se produce al procesar ciertos tipos de datos. La vulnerabilidad representa el mayor peligro para los rel\u00e9s y <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/es\/server\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1571\">servidores<\/a> directorio (Directory Authority), que son los puntos de conexi\u00f3n a la red, responsables de la autenticaci\u00f3n y de transmitir a los usuarios la lista de puertas de enlace que gestionan el tr\u00e1fico. Los servidores de directorio son los m\u00e1s f\u00e1ciles de atacar, ya que permiten que cualquier participante cargue datos. Contra los rel\u00e9s y clientes, un ataque puede organizarse a trav\u00e9s de la carga del cach\u00e9 de los directorios.\n<li class=\"l\"> CVE-2021-28090 \u2014 un atacante puede provocar un fallo <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/es\/server\/dts-los-angeles\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3699\">servidores<\/a> de los directorios al transmitir firmas desprendidas (detached signature) formateadas de una manera particular, utilizadas para la transmisi\u00f3n de informaci\u00f3n sobre el estado del consenso en la red.    <\/ul>\n<p>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54768\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Tor (0.3.5.14, 0.4.4.8, 0.4.5.7), \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0430\u043d\u043e\u043d\u0438\u043c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 Tor. \u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u0435\u043d\u0438\u044f DoS-\u0430\u0442\u0430\u043a \u043d\u0430 \u0443\u0437\u043b\u044b \u0441\u0435\u0442\u0438 Tor: CVE-2021-28089 &#8212; \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u043b\u044e\u0431\u044b\u0445 \u0443\u0437\u043b\u043e\u0432 \u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 Tor \u0447\u0435\u0440\u0435\u0437 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 CPU, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0435\u0439 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0442\u0438\u043f\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445. [&hellip;]<\/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-99452","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=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Tor (0.3.5.14, 0.4.4.8, 0.4.5.7), \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 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