{"id":181775,"date":"2026-05-28T02:48:09","date_gmt":"2026-05-28T00:48:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah"},"modified":"2026-05-28T02:48:09","modified_gmt":"2026-05-28T00:48:09","slug":"uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah","title":{"rendered":"Vulnerabilities in Samba allowing remote code execution in rare configurations","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Wydano poprawki wersji pakietu Samba 4.24.3, 4.23.8 i 4.22.10, kt\u00f3re zapewniaj\u0105 otwart\u0105 implementacj\u0119 protoko\u0142\u00f3w SMB i Active Directory. W nowych wersjach wyeliminowano 6 luk w zabezpieczeniach, z kt\u00f3rych dwie umo\u017cliwiaj\u0105 zdalnemu, nieautoryzowanemu atakuj\u0105cemu wykonanie w\u0142asnego kodu na serwerze:<\/p>\n<ul>\n<li class=\"l\"> CVE-2026-4408 \u2014 luka w implementacji serwera SAMR (Security Account Manager) oparty na DCE\/RPC, stosowanym do zarz\u0105dzania danymi u\u017cytkownik\u00f3w i grup. Problem dotyczy plik\u00f3w <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/\" title=\"serwery\" data-wpil-keyword-link=\"linked\">serwery<\/a> i klasycznych kontroler\u00f3w domen (nie Active Directory), uruchamiaj\u0105cych proces samba-dcerpcd jako us\u0142ug\u0119 systemow\u0105 (domy\u015blnie nie jest uruchamiana) i korzystaj\u0105cych ze skryptu weryfikacji has\u0142a okre\u015blonego w smb.conf za pomoc\u0105 ustawienia \u201echeck password script\u201d z u\u017cyciem symbolu zast\u0119pczego \u201e%u\u201d w komendzie uruchomieniowej (konfiguracje bez zast\u0119powania \u201e%u\u201d problemowi nie podlegaj\u0105).\n<p>Luka jest spowodowana tym, \u017ce us\u0142ugi RPC SamValidatePasswordChange i SamValidatePasswordReset przekazuj\u0105 loginy i has\u0142a do skryptu okre\u015blonego przez ustawienie \u201echeck password script\u201d, bez odpowiedniego eskapowania znak\u00f3w specjalnych podczas zast\u0119powania nazwy u\u017cytkownika przez \u201e%u\u201d. Luka pozwala na wykonanie dowolnych polece\u0144 shell na <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-dronten\/\" title=\"serwerze\" data-wpil-keyword-link=\"linked\">serwerze<\/a> podaniu specjalnie sformatowanej nazwy u\u017cytkownika. Jako obej\u015bcie proponuje si\u0119 przekazywanie nazwy u\u017cytkownika do skryptu nie przez zast\u0119powanie \u201e%u\u201d, ale poprzez zmienn\u0105 \u015brodowiskow\u0105 SAMBA_CPS_ACCOUNT_NAME.<\/p>\n<li class=\"l\"> CVE-2026-4480 \u2014 luka w serwerze drukowania wykorzystuj\u0105cym ustawienie \u201eprint command\u201d z symbolem zast\u0119pczym \u201e%J\u201d. Problem spowodowany jest tym, \u017ce opis zadania drukowania podany przez u\u017cytkownika jest przekazywany przez zast\u0119powanie \u201e%J\u201d bez odpowiedniego eskapowania znak\u00f3w specjalnych, co pozwala na zdalne wykonanie w\u0142asnego kodu podczas wysy\u0142ania zadania do druku, tak\u017ce w domy\u015blnym trybie go\u015bcia. Jako obej\u015bcie mo\u017cna usun\u0105\u0107 zast\u0119powanie<br \/>\n\u201e%J\u201d z ustawienia \u201eprint command\u201d w smb.conf.<\/p>\n<\/ul>\n<p>W nowych wydaniach naprawiono r\u00f3wnie\u017c kilka innych luk, kt\u00f3re umo\u017cliwiaj\u0105 obej\u015bcie kontroli dost\u0119pu do atrybutu xattr \u201ereparse point\u201d, ponowne zapisanie pliku przy u\u017cyciu modu\u0142u vfs WORM (Write-Once, Read Many), instalacj\u0119 certyfikatu przez HTTP bez weryfikacji oraz wywo\u0142anie awaryjnego zako\u0144czenia. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/server\/dts-los-angeles\/\" title=\"serwera\" data-wpil-keyword-link=\"linked\">serwera<\/a> AD DC WINS przez wys\u0142anie specjalnie sformatowanego pakietu UDP.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65545\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0440\u0435\u043b\u0438\u0437\u044b \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.24.3, 4.23.8 \u0438 4.22.10, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 SMB \u0438 Active Directory. \u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0434\u0432\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u0432\u043e\u0439 \u043a\u043e\u0434 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435: CVE-2026-4408 &#8212; \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 SAMR (Security Account Manager) \u043f\u043e\u0432\u0435\u0440\u0445 DCE\/RPC, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u0447\u0451\u0442\u043d\u044b\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0438 \u0411\u0414 c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181775","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\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0440\u0435\u043b\u0438\u0437\u044b \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.24.3, 4.23.8 \u0438 4.22.10, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 SMB \u0438 Active Directory.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Erik Peterson\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"pl_PL\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 Samba, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0435 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u0432 \u0440\u0435\u0434\u043a\u0438\u0445 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f\u0445 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0440\u0435\u043b\u0438\u0437\u044b \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.24.3, 4.23.8 \u0438 4.22.10, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 SMB \u0438 Active Directory.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-05-28T00:48:09+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-05-28T00:48:09+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Luki w zabezpieczeniach w Samba umo\u017cliwiaj\u0105ce zdalne wykonanie kodu w rzadkich konfiguracjach | ProHoster","description":"Zosta\u0142y opublikowane poprawki do pakietu Samba 4.24.3, 4.23.8 i 4.22.10, kt\u00f3re oferuj\u0105 otwart\u0105 implementacj\u0119 protoko\u0142\u00f3w SMB i Active Directory.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah","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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 Samba, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0435 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u0432 \u0440\u0435\u0434\u043a\u0438\u0445 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f\u0445 | ProHoster","og:description":"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0440\u0435\u043b\u0438\u0437\u044b \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.24.3, 4.23.8 \u0438 4.22.10, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 SMB \u0438 Active Directory.","og:url":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-samba-dopuskayushhie-udalyonnoe-vypolnenie-koda-v-redkih-konfiguracziyah","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":"2026-05-28T00:48:09+00:00","article:modified_time":"2026-05-28T00:48:09+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/181775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/comments?post=181775"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/181775\/revisions"}],"predecessor-version":[{"id":182098,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/181775\/revisions\/182098"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/media?parent=181775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/categories?post=181775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/tags?post=181775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}