{"id":36443,"date":"2019-10-31T22:11:40","date_gmt":"2019-10-31T19:11:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kriticheskaya-uyazvimost-v-proftpd\/"},"modified":"2019-10-31T22:11:40","modified_gmt":"2019-10-31T19:11:40","slug":"kriticheskaya-uyazvimost-v-proftpd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/kriticheskaya-uyazvimost-v-proftpd","title":{"rendered":"Vuln\u00e9rabilit\u00e9 critique dans ProFTPd","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans le serveur FTP ProFTPD une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 identifi\u00e9e<\/a><\/noindex> une vuln\u00e9rabilit\u00e9 dangereuse (CVE-2019-12815<\/a><\/noindex>), qui permet de copier des fichiers au sein du serveur sans n\u00e9cessit\u00e9 d'authentification \u00e0 l'aide des commandes \u00ab site cpfr \u00bb et \u00ab site cpto \u00bb. Probl\u00e8me sont attribu\u00e9es<\/a><\/noindex> a un niveau de gravit\u00e9 de 9,8 sur 10, car il peut \u00eatre exploit\u00e9 pour organiser l'ex\u00e9cution \u00e0 distance de code en fournissant un acc\u00e8s anonyme au FTP.<\/p>\n

Vuln\u00e9rabilit\u00e9 est caus\u00e9e<\/a><\/noindex> d'une v\u00e9rification incorrecte des limitations d'acc\u00e8s en lecture et \u00e9criture des donn\u00e9es (Limit READ et Limit WRITE) dans le module mod_copy, qui est appliqu\u00e9 par d\u00e9faut et inclus dans les paquets proftpd pour la plupart des distributions. Il convient de noter que la vuln\u00e9rabilit\u00e9 r\u00e9sulte d'un probl\u00e8me similaire qui n'a pas \u00e9t\u00e9 compl\u00e8tement r\u00e9solu, identifi\u00e9e<\/a><\/noindex> en 2015, pour lequel de nouveaux vecteurs d'attaque ont maintenant \u00e9t\u00e9 identifi\u00e9s. De plus, le probl\u00e8me a \u00e9t\u00e9 signal\u00e9 aux d\u00e9veloppeurs d\u00e8s septembre de l'ann\u00e9e derni\u00e8re, mais le correctif a \u00e9t\u00e9 pr\u00e9par\u00e9<\/a><\/noindex> disponible seulement il y a quelques jours.<\/p>\n

Le probl\u00e8me se manifeste \u00e9galement dans les derni\u00e8res versions actuelles de ProFTPd 1.3.6 et 1.3.5d. Le correctif est disponible sous la forme d'un correctif<\/a><\/noindex>. Comme solution de contournement recommand\u00e9e, il est conseill\u00e9 de d\u00e9sactiver mod_copy dans la configuration. La vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 corrig\u00e9e uniquement dans Fedora<\/a><\/noindex> et reste non r\u00e9solue dans Debian<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, FreeBSD<\/a><\/noindex>, EPEL-7<\/a><\/noindex> (ProFTPD n'est pas fourni dans le d\u00e9p\u00f4t principal de RHEL, et le paquet d'EPEL-6 n'est pas concern\u00e9 par le probl\u00e8me car il n'inclut pas mod_copy).<\/p>\n

<\/a><\/noindex><\/p>\n

Source : opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 9.8 \u0438\u0437 10, \u0442\u0430\u043a \u043a\u0430\u043a \u043e\u043d\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0430\u043d\u043e\u043d\u0438\u043c\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a FTP. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043d\u0430 […]<\/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-36443","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\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\u00e9 critique dans ProFTPd | ProHoster","description":"Une vuln\u00e9rabilit\u00e9 dangereuse a \u00e9t\u00e9 identifi\u00e9e dans le serveur FTP ProFTPD 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