{"id":105381,"date":"2022-10-25T21:36:42","date_gmt":"2022-10-25T19:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-samba-privodyashhie-k-perepolneniyu-bufera-i-vyhodu-za-graniczu-bazovogo-kataloga"},"modified":"2022-10-25T21:36:42","modified_gmt":"2022-10-25T19:36:42","slug":"uyazvimosti-v-samba-privodyashhie-k-perepolneniyu-bufera-i-vyhodu-za-graniczu-bazovogo-kataloga","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/uyazvimosti-v-samba-privodyashhie-k-perepolneniyu-bufera-i-vyhodu-za-graniczu-bazovogo-kataloga","title":{"rendered":"Vuln\u00e9rabilit\u00e9s dans Samba, entra\u00eenant un d\u00e9bordement de tampon et un d\u00e9passement du r\u00e9pertoire de base","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Des mises \u00e0 jour correctives pour les versions 4.17.2, 4.16.6 et 4.15.11 de Samba ont \u00e9t\u00e9 publi\u00e9es, corrigeant deux vuln\u00e9rabilit\u00e9s. Les mises \u00e0 jour des paquets dans les distributions peuvent \u00eatre suivies sur les pages : Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch, FreeBSD.    <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-3437 \u2014 d\u00e9bordement de tampon dans les fonctions unwrap_des() et unwrap_des3() fournies par la biblioth\u00e8que GSSAPI du package Heimdal (inclus dans Samba \u00e0 partir de la version 4.0). L'exploitation de la vuln\u00e9rabilit\u00e9 est possible en envoyant un paquet sp\u00e9cialement con\u00e7u \u00e0 des syst\u00e8mes utilisant GSSAPI. Par exemple, le probl\u00e8me se manifeste dans l'impl\u00e9mentation du client et du fichier <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-los-angeles\/\"   title=\"de serveurs\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3866\">de serveurs<\/a> bas\u00e9 sur le protocole SMB1, lors de l'utilisation de DCE\/RPC et dans le contr\u00f4leur de domaine Active Directory. Les syst\u00e8mes construits avec MIT Kerberos (--with-system-mitkrb5) plut\u00f4t qu'Heimdal ne sont pas affect\u00e9s par le probl\u00e8me.\n<li class=\"l\"> CVE-2022-3592 \u2014 possibilit\u00e9 d'aller au-del\u00e0 des limites du r\u00e9pertoire export\u00e9 et d'acc\u00e9der \u00e0 n'importe quel fichier sur <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=\"2728\">le serveur<\/a> par des manipulations avec des liens symboliques. Le probl\u00e8me se manifeste uniquement dans la branche Samba 4.17 et est caus\u00e9 par une erreur dans le nouveau code de traitement des liens symboliques dans l'espace utilisateur (le code n'incluait pas de v\u00e9rification pour d\u00e9terminer si le r\u00e9pertoire cible du lien \u00e9tait en dehors du r\u00e9pertoire export\u00e9). La vuln\u00e9rabilit\u00e9 peut \u00eatre exploit\u00e9e par un client disposant d'un acc\u00e8s en \u00e9criture dans la partition export\u00e9e, fournie via les protocoles SMB1 ou NFS, permettant la cr\u00e9ation de liens symboliques.    <\/ul>\n<p>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57978\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.17.2, 4.16.6 \u0438 4.15.11 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u0412\u044b\u043f\u0443\u0441\u043a \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430\u0445 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u0441\u043b\u0435\u0434\u0438\u0442\u044c \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445: Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch, FreeBSD. CVE-2022-3437 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u0445 unwrap_des() \u0438 unwrap_des3(), \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 GSSAPI \u0438\u0437 \u043f\u0430\u043a\u0435\u0442\u0430 Heimdal (\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u0435 Samba, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 4.0). \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 [&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-105381","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\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.17.2, 4.16.6 \u0438 4.15.11 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439.\" \/>\n\t<meta name=\"robots\" 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entra\u00eenant un d\u00e9bordement de tampon et un d\u00e9passement du r\u00e9pertoire de base | ProHoster","description":"Des mises \u00e0 jour correctives pour les versions 4.17.2, 4.16.6 et 4.15.11 de Samba ont \u00e9t\u00e9 publi\u00e9es, corrigeant deux vuln\u00e9rabilit\u00e9s.","canonical_url":"https:\/\/prohoster.info\/fr\/blog\/news\/uyazvimosti-v-samba-privodyashhie-k-perepolneniyu-bufera-i-vyhodu-za-graniczu-bazovogo-kataloga","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"fr_FR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS 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