{"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\/it\/blog\/news\/obnovlenie-samba-4-10-8-i-4-9-13-s-ustraneniem-uyazvimosti","title":{"rendered":"Aggiornamento Samba 4.10.8 e 4.9.13 con correzione di vulnerabilit\u00e0","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\">Preparati<\/a><\/noindex> rilasci correttivi per il pacchetto Samba 4.10.8 e 4.9.13, che risolvono <noindex><a rel=\"nofollow\" href=\"https:\/\/www.samba.org\/samba\/security\/CVE-2019-10197.html\">vulnerabilit\u00e0<\/a><\/noindex> (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2019-10197\">CVE-2019-10197<\/a><\/noindex>), consentendo all'utente di accedere alla directory radice in cui \u00e8 posizionato il condivisione Samba. Il problema si manifesta quando si specifica nelle impostazioni l'opzione 'wide links = yes' in combinazione con 'unix extensions = no' o 'allow insecure wide links = yes'. L'accesso ai file al di fuori dell'attuale condivisione limitato dai diritti di accesso dell'utente, cio\u00e8 l'attaccante pu\u00f2 leggere e scrivere file in base al proprio uid\/gid.<\/p>\n<p>Il problema \u00e8 causato dal fatto che dopo la prima richiesta della radice della condivisione, al client viene restituito un errore di accesso, ma smbd memorizza in cache la richiesta della directory e non svuota la cache in caso di problemi di accesso. Pertanto, dopo l'invio di una nuova richiesta SMB, essa viene elaborata con successo sulla base della registrazione nella cache senza ulteriori controlli dei permessi.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <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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