{"id":37770,"date":"2019-10-31T22:19:37","date_gmt":"2019-10-31T19:19:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/obnovlenie-samba-4-10-8-i-4-9-13-s-ustraneniem-uyazvimosti\/"},"modified":"2019-10-31T22:19:37","modified_gmt":"2019-10-31T19:19:37","slug":"obnovlenie-samba-4-10-8-i-4-9-13-s-ustraneniem-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/obnovlenie-samba-4-10-8-i-4-9-13-s-ustraneniem-uyazvimosti","title":{"rendered":"Update Samba 4.10.8 und 4.9.13 mit Behebung einer Sicherheitsanf\u00e4lligkeit.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/samba-announce@lists.samba.org\/msg00479.html\">Vorbereitet<\/a><\/noindex> Korrekturversionen des Samba-Pakets 4.10.8 und 4.9.13, in denen behoben wurde, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.samba.org\/samba\/security\/CVE-2019-10197.html\">eine Schwachstelle<\/a><\/noindex> (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2019-10197\">CVE-2019-10197<\/a><\/noindex>), die es dem Benutzer erm\u00f6glicht, auf das Wurzelverzeichnis zuzugreifen, in dem der Samba-Netzwerkfreigabe gespeichert ist. Das Problem tritt auf, wenn in den Einstellungen die Option 'wide links = yes' in Kombination mit 'unix extensions = no' oder 'allow insecure wide links = yes' angegeben wird. Der Zugriff auf Dateien au\u00dferhalb des aktuellen gemeinsamen Verzeichnisses ist durch die Zugriffsrechte des Benutzers eingeschr\u00e4nkt, d.h. ein Angreifer kann Dateien entsprechend seiner uid\/gid lesen und schreiben.<\/p>\n<p>Das Problem entsteht dadurch, dass nach der ersten Anfrage an das Wurzelverzeichnis der Freigabe dem Client ein Zugriffsfehler zur\u00fcckgegeben wird, aber smbd den Verzeichniszugriff zwischenspeichert und den Cache im Falle eines Zugriffsproblems nicht l\u00f6scht. Folglich wird nach dem erneuten Senden einer SMB-Anfrage diese erfolgreich auf Grundlage des Cache-Eintrags bearbeitet, ohne erneute Berechtigungspr\u00fcfungen vorzunehmen.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51412\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\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 4.10.8 \u0438 4.9.13, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2019-10197), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043e\u0440\u043d\u0435\u0432\u043e\u043c\u0443 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0443, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0440\u0430\u0437\u0434\u0435\u043b Samba. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u0443\u043a\u0430\u0437\u0430\u043d\u0438\u0438 \u0432 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u0445 \u043e\u043f\u0446\u0438\u0438 &#8216;wide links = yes&#8217; \u0432 \u0441\u043e\u0447\u0435\u0442\u0430\u043d\u0438\u0438 \u0441 &#8216;unix extensions = no&#8217; \u0438\u043b\u0438 &#8216;allow insecure wide links = yes&#8217;. \u0414\u043e\u0441\u0442\u0443\u043f \u043a \u0444\u0430\u0439\u043b\u0430\u043c \u0432\u043d\u0435 [&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-37770","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\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 4.10.8 \u0438 4.9.13, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430.\" 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