{"id":103738,"date":"2022-04-08T15:36:50","date_gmt":"2022-04-08T13:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp"},"modified":"2022-04-08T15:36:50","modified_gmt":"2022-04-08T13:36:50","slug":"reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","title":{"rendered":"Lancement d'OpenSSH 9.0 avec la translation de scp vers le protocole SFTP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La version 9.0 d'OpenSSH, une impl\u00e9mentation open source du client et du serveur pour les protocoles SSH 2.0 et SFTP, a \u00e9t\u00e9 publi\u00e9e. Dans cette nouvelle version, l'outil scp est par d\u00e9faut configur\u00e9 pour utiliser SFTP au lieu de l'ancien protocole SCP\/RCP.       <\/p>\n<p>SFTP utilise des m\u00e9thodes de traitement de noms plus pr\u00e9visibles et n'implique pas le traitement des mod\u00e8les globaux dans les noms de fichiers via le shell sur un autre h\u00f4te, ce qui pose des probl\u00e8mes de s\u00e9curit\u00e9. En particulier, lors de l'utilisation de SCP et RCP, le serveur d\u00e9cide quels fichiers et r\u00e9pertoires envoyer au client, tandis que le client ne v\u00e9rifie que la validit\u00e9 des noms d'objets retourn\u00e9s, ce qui, en l'absence de contr\u00f4les appropri\u00e9s c\u00f4t\u00e9 client, permet <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-shicago\/\"   title=\"serveur\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2910\">serveur<\/a> de transmettre d'autres noms de fichiers, diff\u00e9rents de ceux demand\u00e9s.     <\/p>\n<p>Le protocole SFTP ne pr\u00e9sente pas les probl\u00e8mes mentionn\u00e9s, mais il ne prend pas en charge l'expansion des chemins sp\u00e9ciaux, tels que \u00ab ~\/ \u00bb. Pour rem\u00e9dier \u00e0 cette diff\u00e9rence, depuis OpenSSH 8.7, l'impl\u00e9mentation du serveur SFTP prend en charge l'extension de protocole \u00ab expand-path@openssh.com \u00bb pour d\u00e9rouler les chemins ~\/ et ~user\/.     <\/p>\n<p>Lors de l'utilisation de SFTP, les utilisateurs peuvent \u00e9galement rencontrer des incompatibilit\u00e9s dues \u00e0 la n\u00e9cessit\u00e9 d'un double \u00e9chappement des caract\u00e8res sp\u00e9ciaux d'expansion de chemins dans les requ\u00eates SCP et RCP, afin d'\u00e9viter leur interpr\u00e9tation c\u00f4t\u00e9 distant. Dans SFTP, cet \u00e9chappement n'est pas n\u00e9cessaire et des guillemets superflus peuvent entra\u00eener des erreurs de transmission de donn\u00e9es. Dans ce cas, les d\u00e9veloppeurs d'OpenSSH ont choisi de ne pas ajouter d'extension pour reproduire le comportement de scp, car le double \u00e9chappement est consid\u00e9r\u00e9 comme un d\u00e9faut qu'il n'est pas pertinent de reproduire.    <\/p>\n<p>D'autres changements dans la nouvelle version :  <\/p>\n<ul>\n<li class=\"l\"> Dans ssh et sshd, l'algorithme hybride d'\u00e9change de cl\u00e9s \u00ab sntrup761x25519-sha512@openssh.com \u00bb (ECDH\/x25519 + NTRU Prime) est activ\u00e9 par d\u00e9faut, r\u00e9sistant \u00e0 la recherche par des ordinateurs quantiques et combin\u00e9 avec ECDH\/x25519 pour bloquer d'\u00e9ventuels probl\u00e8mes dans NTRU Prime qui pourraient survenir \u00e0 l'avenir. Dans la liste des KexAlgorithms, qui d\u00e9finit l'ordre de s\u00e9lection des m\u00e9thodes d'\u00e9change de cl\u00e9s, cet algorithme est d\u00e9sormais en premi\u00e8re position et a une priorit\u00e9 plus \u00e9lev\u00e9e que les algorithmes ECDH et DH.\n<p>Les ordinateurs quantiques n'ont pas encore atteint un niveau leur permettant de casser les cl\u00e9s traditionnelles, mais l'application d'une protection hybride permettra de prot\u00e9ger les utilisateurs contre les attaques li\u00e9es \u00e0 la conservation des sessions SSH intercept\u00e9es, en esp\u00e9rant qu'elles pourront \u00eatre d\u00e9chiffr\u00e9es dans le futur lorsque les ordinateurs quantiques n\u00e9cessaires seront disponibles.    <\/p>\n<li class=\"l\"> Une extension \u00ab copy-data \u00bb a \u00e9t\u00e9 ajout\u00e9e \u00e0 sftp-server, permettant de copier des donn\u00e9es du c\u00f4t\u00e9 serveur, sans envoi transit \u00e0 un client, si le fichier source et le fichier cible se trouvent sur le m\u00eame. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-newyork\/\"   title=\"le serveur\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2706\">le serveur<\/a>.\n<li class=\"l\"> La commande \u00ab cp \u00bb a \u00e9t\u00e9 ajout\u00e9e \u00e0 l'utilitaire sftp pour permettre au client d'initier la copie de fichiers du c\u00f4t\u00e9 serveur.    <\/ul>\n<p>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56991\">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 \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.0, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c SSH 2.0 \u0438 SFTP. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u0442\u0438\u043b\u0438\u0442\u0430 scp \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 SFTP \u0432\u043c\u0435\u0441\u0442\u043e \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 SCP\/RCP. \u0412 SFTP \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438\u043c\u0451\u043d \u0438 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 glob-\u0448\u0430\u0431\u043b\u043e\u043d\u043e\u0432 \u0432 \u0438\u043c\u0435\u043d\u0430\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 \u0447\u0435\u0440\u0435\u0437 shell \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u0445\u043e\u0441\u0442\u0430, \u0441\u043e\u0437\u0434\u0430\u044e\u0449\u0430\u044f [&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-103738","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\" 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