{"id":145323,"date":"2025-10-16T17:11:54","date_gmt":"2025-10-16T15:11:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-samba-pozvolyayushhaya-udalyonno-vypolnit-kod-na-servere"},"modified":"2025-10-16T17:11:54","modified_gmt":"2025-10-16T15:11:54","slug":"uyazvimost-v-samba-pozvolyayushhaya-udalyonno-vypolnit-kod-na-servere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-samba-pozvolyayushhaya-udalyonno-vypolnit-kod-na-servere","title":{"rendered":"Vulnerabilno\u015b\u0107 w Samba, umo\u017cliwiaj\u0105ca zdalne wykonanie kodu na serwerze.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Opublikowano poprawki do pakietu Samba 4.23.2, 4.22.5 i 4.21.9, kt\u00f3re eliminuj\u0105 luk\u0119 (CVE-2025-10230) w implementacji serwera rozwi\u0105zywania nazw WINS, umo\u017cliwiaj\u0105c\u0105 zdalne wykonanie w\u0142asnego kodu na serwerze bez wymogu autoryzacji. Problemowi nadano najwy\u017cszy poziom zagro\u017cenia \u2014 10 na 10. <\/p>\n

Luka wynika z braku odpowiedniej weryfikacji warto\u015bci przekazywanych przed uruchomieniem aplikacji wskazanej w parametrze \u201ewins hook\u201d. Ta aplikacja jest uruchamiana za pomoc\u0105 komendy \u201esh -c\u201d za ka\u017cdym razem, gdy zmienia si\u0119 nazwa przez WINS. Przy korzystaniu z WINS w kontrolerze domeny<\/a> Active Directory, nazwy NetBIOS przekazywane jako argumenty wiersza polece\u0144 podczas uruchamiania aplikacji hook, nie by\u0142y oczyszczane z znak\u00f3w specjalnych, co umo\u017cliwia\u0142o wykonanie dowolnych polece\u0144 shell przez wskazanie w zapytaniu do serwera WINS specjalnie sformu\u0142owanej nazwy NetBIOS. cmd = talloc_asprintf(tmp_mem, \" %s %s %s x %ld \", wins_hook_script, wins_hook_action_string(action), rec->name->name, rec->name->type, (long int) rec->expire_time); ... execl(\"\/bin\/sh\", \"sh\", \"-c\", cmd, NULL); <\/p>\n

Klient bez autoryzacji mo\u017ce wys\u0142a\u0107 do serwera WINS pakiet rejestracji i za\u017c\u0105da\u0107 dowolnej nazwy NetBIOS, nieprzekraczaj\u0105cej 15 znak\u00f3w. Oczyszczenie takich znak\u00f3w, jak \u201e\u201d i \u201e;\u201d, w nazwie nie jest przeprowadzane. W zwi\u0105zku z tym przy uruchamianiu hook-handlera przekazanie nazwy w formie \u201ename;id>file\u201d prowadzi do wykonania narz\u0119dzia \u201eid\u201d i skierowania wyj\u015bcia do pliku \u201efile\u201d. <\/p>\n

Luka ujawnia si\u0119 w systemach, gdzie w smb.conf ustawiono parametr \u201ewins hook\u201d przy u\u017cyciu kontrolera domeny z aktywnym serwerem<\/a> WINS (domy\u015blnie wy\u0142\u0105czony i wymaga w\u0142\u0105czenia parametru \u201ewins support = yes\u201d). Przy korzystaniu z serwera WINS w systemach bez kontrolera domeny luka nie wyst\u0119puje. Stan nowej wersji pakietu lub przygotowania poprawki w dystrybucjach mo\u017cna sprawdzi\u0107 na nast\u0119puj\u0105cych stronach: Debian, Ubuntu, Fedora, SUSE\/openSUSE, RHEL, Gentoo, Arch, FreeBSD, OpenBSD i NetBSD. <\/p>\n

W opublikowanych wersjach Samba usuni\u0119to r\u00f3wnie\u017c mniej niebezpieczn\u0105 podatno\u015b\u0107 (CVE-2025-9640), prowadz\u0105c\u0105 do wycieku niezainicjowanej pami\u0119ci. Problem wyst\u0119puje w module vfs_streams_xattr w przypadku wyst\u0105pienia b\u0142\u0119d\u00f3w przy alokacji pami\u0119ci, kt\u00f3re mo\u017cna wywo\u0142a\u0107 podczas operacji zapisu tworz\u0105cych puste obszary w pliku. Podatno\u015b\u0107 mo\u017ce by\u0107 wykorzystana przez uwierzytelnionego u\u017cytkownika.
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 4.23.2, 4.22.5 \u0438 4.21.9 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2025-10230) \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u044f \u0438\u043c\u0451\u043d WINS, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 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\u0443\u043a\u0430\u0437\u0430\u043d\u043d\u043e\u0433\u043e \u0432 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0435 «wins hook». \u0414\u0430\u043d\u043d\u043e\u0435 […]<\/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-145323","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Podatno\u015b\u0107 w Samba, umo\u017cliwiaj\u0105ca zdalne wykonanie kodu na serwerze | ProHoster","description":"Opublikowano poprawki do pakietu Samba 4.23.2, 4.22.5 i 4.21.9, kt\u00f3re eliminuj\u0105 podatno\u015b\u0107 (CVE-2025-10230) w 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\u043a\u043e\u0434 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 | ProHoster","og:description":"\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 4.23.2, 4.22.5 \u0438 4.21.9 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2025-10230) \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u044f \u0438\u043c\u0451\u043d WINS, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f 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\u043d\u0430.","og:url":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimost-v-samba-pozvolyayushhaya-udalyonno-vypolnit-kod-na-servere","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2025-10-16T15:11:54+00:00","article:modified_time":"2025-10-16T15:11:54+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"145323","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-03-05 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