{"id":103554,"date":"2022-03-17T09:36:44","date_gmt":"2022-03-17T07:36:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti"},"modified":"2022-03-17T09:36:44","modified_gmt":"2022-03-17T07:36:44","slug":"vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti","title":{"rendered":"Sortie d'OpenVPN 2.5.6 et 2.4.12 avec correction de vuln\u00e9rabilit\u00e9s","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Des mises \u00e0 jour correctives pour OpenVPN 2.5.6 et 2.4.12 ont \u00e9t\u00e9 pr\u00e9par\u00e9es. Ce paquet permet de cr\u00e9er des r\u00e9seaux priv\u00e9s virtuels, facilitant une connexion chiffr\u00e9e entre deux machines clientes ou permettant le fonctionnement d'un serveur VPN centralis\u00e9 pour le travail simultan\u00e9 de plusieurs clients. Le code d'OpenVPN est distribu\u00e9 sous la licence GPLv2, et des paquets binaires pr\u00eats \u00e0 l'emploi sont disponibles pour Debian, Ubuntu, CentOS, RHEL et Windows. <\/p>\n

Les nouvelles versions corrigent une vuln\u00e9rabilit\u00e9 qui pourrait permettre de contourner l'authentification via la manipulation de plugins externes prenant en charge le mode d'authentification diff\u00e9r\u00e9e (deferred_auth). Le probl\u00e8me survient lorsque plusieurs plugins envoient des r\u00e9ponses d'authentification diff\u00e9r\u00e9e, permettant ainsi \u00e0 un utilisateur externe d'acc\u00e9der sur la base de donn\u00e9es d'identification pas compl\u00e8tement valides. \u00c0 partir des versions OpenVPN 2.5.6 et 2.4.12, les tentatives d'utilisation de l'authentification diff\u00e9r\u00e9e par plusieurs plugins entra\u00eeneront une erreur. <\/p>\n

Parmi les autres changements, on peut noter l'ajout du nouveau plugin sample-plugin\/defer\/multi-auth.c, qui peut \u00eatre utile pour organiser des tests sur l'utilisation simultan\u00e9e de diff\u00e9rents plugins d'authentification, afin d'\u00e9viter \u00e0 l'avenir des vuln\u00e9rabilit\u00e9s similaires \u00e0 celle analys\u00e9e ci-dessus. Sur la plateforme Linux, le fonctionnement de l'option \u00ab \u2014mtu-disc maybe|yes \u00bb a \u00e9t\u00e9 mis en place. Une fuite de m\u00e9moire dans les proc\u00e9dures d'ajout de routes a \u00e9t\u00e9 r\u00e9solue.
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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