{"id":99573,"date":"2021-03-25T16:22:53","date_gmt":"2021-03-25T14:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej"},"modified":"2021-03-25T16:22:53","modified_gmt":"2021-03-25T14:22:53","slug":"obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","title":{"rendered":"Aktualizacja Samba 4.14.2, 4.13.7 i 4.12.14 dotycz\u0105ca usuni\u0119cia luk bezpiecze\u0144stwa","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Zosta\u0142y przygotowane poprawki do pakietu Samba 4.14.2, 4.13.7 i 4.12.14, w kt\u00f3rych naprawiono dwie podatno\u015bci:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2020-27840 \u2014 przepe\u0142nienie bufora, kt\u00f3re wyst\u0119puje podczas przetwarzania specjalnie sformatowanych nazw DN (Distinguished Name). Anonimowy atakuj\u0105cy mo\u017ce spowodowa\u0107 awari\u0119 serwera AD DC LDAP opartego na Samba, wysy\u0142aj\u0105c specjalnie sformatowane \u017c\u0105danie bind. Poniewa\u017c w trakcie ataku istnieje mo\u017cliwo\u015b\u0107 kontrolowania obszaru nadpisania, nie mo\u017cna wykluczy\u0107 powa\u017cniejszych konsekwencji, takich jak wykonanie w\u0142asnego kodu na <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-dronten\/\"   title=\"serwerze\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2615\">serwerze<\/a>, ale jak dot\u0105d nie ma dzia\u0142aj\u0105cego exploita. Poniewa\u017c kod odpowiadaj\u0105cy za podatno\u015b\u0107 do przetwarzania ci\u0105gu DN jest wykonywany przed weryfikacj\u0105 parametr\u00f3w uwierzytelniania, problem mo\u017ce by\u0107 wykorzystany przez atakuj\u0105cego, kt\u00f3ry nie ma konta na <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-newyork\/\"   title=\"serwerze\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2661\">serwerze<\/a>.\n<li class=\"l\"> CVE-2021-20277 \u2014 odczyt z obszaru poza granicami bufora podczas przetwarzania na serwerze AD DC LDAP specjalnie sformatowanego filtra definiowanego przez u\u017cytkownika. Problem mo\u017ce prowadzi\u0107 do awarii serwera obs\u0142uguj\u0105cego lub wycieku zawarto\u015bci z pami\u0119ci procesu.      <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54827\">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 4.14.2, 4.13.7 \u0438 4.12.14, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-27840 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0435\u0435 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u0438\u043c\u0451\u043d DN (Distinguished Name). \u0410\u043d\u043e\u043d\u0438\u043c\u043d\u044b\u0439 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043a\u0440\u0430\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 AD DC LDAP \u043d\u0430 \u0431\u0430\u0437\u0435 Samba \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e bind-\u0437\u0430\u043f\u0440\u043e\u0441\u0430. \u0422\u0430\u043a \u043a\u0430\u043a \u0432 \u0445\u043e\u0434\u0435 \u0430\u0442\u0430\u043a\u0438 \u0438\u043c\u0435\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438, \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-99573","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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przepe\u0142nienie bufora, kt\u00f3re wyst\u0119puje podczas przetwarzania specjalnie sformatowanych.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pl_PL","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 \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 Samba 4.14.2, 4.13.7 \u0438 4.12.14 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 | ProHoster","og:description":"\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 4.14.2, 4.13.7 \u0438 4.12.14, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-27840 - 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