{"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\/fr\/blog\/news\/mikrotik-routeros-vulnerabilities-allow-unauthenticated-remote-ssh-access","title":{"rendered":"Vuln\u00e9rabilit\u00e9s dans MikroTik RouterOS permettant un acc\u00e8s SSH \u00e0 distance sans authentification","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans le syst\u00e8me d'exploitation RouterOS, utilis\u00e9 dans les routeurs MikroTik, six vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 identifi\u00e9es. La combinaison de deux d'entre elles permet de prendre le contr\u00f4le total de l'appareil \u00e0 distance avec des droits d'administrateur, \u00e0 condition qu'il soit accessible par SSH. Des cas d'exploitation des vuln\u00e9rabilit\u00e9s signal\u00e9es ont \u00e9t\u00e9 document\u00e9s. Des correctifs de MikroTik sont disponibles depuis le 3 septembre (RouterOS 7.25 beta 3, 7.24.2, 7.23.4, 6.49.21) et il est probable que les attaquants aient pu comprendre la nature des vuln\u00e9rabilit\u00e9s \u00e0 partir de ces correctifs. <\/p>\n

Les vuln\u00e9rabilit\u00e9s CVE-2026-67276 et CVE-2026-86060 ont \u00e9t\u00e9 class\u00e9es comme critiques (9.2 sur 10). Le premier probl\u00e8me est caus\u00e9 par une v\u00e9rification incorrecte des cl\u00e9s publiques RSA utilis\u00e9es lors de l'authentification via SSH. Sachant le nom d'utilisateur et les param\u00e8tres de la cl\u00e9 publique de l'utilisateur, un attaquant pouvait cr\u00e9er une cl\u00e9 fictive et se connecter via SSH sans acc\u00e8s \u00e0 la cl\u00e9 priv\u00e9e. Le second probl\u00e8me est li\u00e9 \u00e0 l'absence de filtrage des caract\u00e8res non valides au d\u00e9but du nom d'utilisateur lors du traitement de la connexion SSH. <\/p>\n

L'exploitation r\u00e9ussie des vuln\u00e9rabilit\u00e9s peut \u00eatre suivie par les enregistrements dans le journal RouterOS : \u00e9chec de connexion pour l'utilisateur -2 depuis via ssh utilisateur ajout\u00e9 par ssh:-2@
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 RouterOS, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0432 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0430\u0445 MikroTik, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041a\u043e\u043c\u0431\u0438\u043d\u0430\u0446\u0438\u044f \u0434\u0432\u0443\u0445 \u0438\u0437 \u043d\u0438\u0445 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u043e\u043b\u043d\u044b\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u043d\u0430\u0434 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e\u043c \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 \u043f\u0440\u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0438 \u0435\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u0438 \u043f\u043e SSH. \u0417\u0430\u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0444\u0430\u043a\u0442\u044b \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u043e\u0442\u043c\u0435\u0447\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041f\u0430\u0442\u0447\u0438 \u043e\u0442 Mikrotick \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u0441 3 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f (RouterOS 7.25 beta 3, 7.24.2, 7.23.4, 6.49.21) \u0438 \u0432\u0435\u0440\u043e\u044f\u0442\u043d\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0435 \u0441\u043c\u043e\u0433\u043b\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c […]<\/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\udd47Vuln\u00e9rabilit\u00e9s dans MikroTik RouterOS, permettant l'acc\u00e8s \u00e0 distance par SSH sans authentification | ProHoster","description":"Dans le syst\u00e8me d'exploitation RouterOS, utilis\u00e9 dans les routeurs MikroTik, six vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 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