{"id":183289,"date":"2026-09-07T22:54:33","date_gmt":"2026-09-07T20:54:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/uyazvimosti-v-mikrotik-routeros-dopuskayushhie-udalyonnyj-dostup-po-ssh-bez-autentifikaczii"},"modified":"2026-09-07T22:54:37","modified_gmt":"2026-09-07T20:54:37","slug":"mikrotik-routeros-vulnerabilities-allow-unauthenticated-remote-ssh-access","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/mikrotik-routeros-vulnerabilities-allow-unauthenticated-remote-ssh-access","title":{"rendered":"Vulnerabilidades en MikroTik RouterOS que permiten acceso remoto por SSH sin autenticaci\u00f3n","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

En el sistema operativo RouterOS, utilizado en los routers MikroTik, se han detectado 6 vulnerabilidades. La combinaci\u00f3n de dos de ellas permite obtener control total del dispositivo de forma remota con privilegios de administrador, siempre que sea accesible por SSH. Se han registrado casos de explotaci\u00f3n de estas vulnerabilidades. Los parches de Mikrotik est\u00e1n disponibles desde el 3 de septiembre (RouterOS 7.25 beta 3, 7.24.2, 7.23.4, 6.49.21) y es probable que los atacantes hayan podido descifrar la naturaleza de las vulnerabilidades a partir de estos parches. <\/p>\n

Las vulnerabilidades CVE-2026-67276 y CVE-2026-86060 se han clasificado con un nivel cr\u00edtico de peligro (9.2 sobre 10). El primer problema es causado por la verificaci\u00f3n incorrecta de las claves p\u00fablicas RSA utilizadas en la autenticaci\u00f3n v\u00eda SSH. Conociendo el nombre de usuario y los par\u00e1metros de la clave p\u00fablica del usuario, un atacante podr\u00eda generar una clave falsa y conectarse a trav\u00e9s de ella por SSH sin acceso a la clave privada. El segundo problema est\u00e1 relacionado con la falta de filtrado de caracteres no v\u00e1lidos al inicio del nombre de usuario al procesar el inicio de sesi\u00f3n a trav\u00e9s de SSH. <\/p>\n

La explotaci\u00f3n exitosa de las vulnerabilidades se puede rastrear a trav\u00e9s de los registros en el log de RouterOS: login failure for user -2 from via ssh user added by ssh:-2@
\n
Fuente: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183289","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\n","aioseo_head_json":{"title":"\ud83e\udd47Vulnerabilidades en MikroTik RouterOS que permiten acceso remoto por SSH sin autenticaci\u00f3n | ProHoster","description":"En el sistema operativo RouterOS, utilizado en los routers MikroTik, se han detectado 6 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