{"id":105252,"date":"2022-10-05T09:36:48","date_gmt":"2022-10-05T07:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-9-1"},"modified":"2022-10-05T09:36:48","modified_gmt":"2022-10-05T07:36:48","slug":"reliz-openssh-9-1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/reliz-openssh-9-1","title":{"rendered":"Wydanie OpenSSH 9.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po sze\u015bciu miesi\u0105cach prac, opublikowano wydanie OpenSSH 9.1, otwartej implementacji klienta i serwera do pracy z protoko\u0142ami SSH 2.0 i SFTP. Wydanie to opisane jest jako g\u0142\u00f3wnie zawieraj\u0105ce poprawki b\u0142\u0119d\u00f3w, w tym usuni\u0119cie kilku potencjalnych podatno\u015bci spowodowanych problemami z pami\u0119ci\u0105:  <\/p>\n<ul>\n<li class=\"l\"> Jednobajtowe przepe\u0142nienie w kodzie obs\u0142ugi banera SSH w narz\u0119dziu ssh-keyscan.\n<li class=\"l\"> Podw\u00f3jne wywo\u0142anie funkcji free() w przypadku b\u0142\u0119du w obliczaniu hashy dla plik\u00f3w w kodzie tworzenia i weryfikacji podpis\u00f3w cyfrowych w narz\u0119dziu ssh-keygen.\n<li class=\"l\"> Podw\u00f3jne wywo\u0142anie funkcji free() podczas obs\u0142ugi b\u0142\u0119d\u00f3w w narz\u0119dziu ssh-keysign.    <\/ul>\n<p>G\u0142\u00f3wne zmiany:  <\/p>\n<ul>\n<li class=\"l\"> W ssh i sshd dodano dyrektyw\u0119 RequiredRSASize, kt\u00f3ra pozwala okre\u015bli\u0107 minimalny dozwolony rozmiar kluczy RSA. W sshd klucze mniejszego rozmiaru b\u0119d\u0105 ignorowane, a w ssh mog\u0105 prowadzi\u0107 do zako\u0144czenia po\u0142\u0105czenia.\n<li class=\"l\"> Przeno\u015bna wersja OpenSSH zosta\u0142a przystosowana do u\u017cycia kluczy SSH do autoryzacji podpis\u00f3w cyfrowych commit\u00f3w i tag\u00f3w w Git.\n<li class=\"l\"> Dyrektywy SetEnv w plikach konfiguracyjnych ssh_config i sshd_config teraz stosuj\u0105 warto\u015b\u0107 z pierwszego wyst\u0105pienia zmiennej \u015brodowiskowej, je\u015bli zosta\u0142a ona zdefiniowana w konfiguracji wiele razy (wcze\u015bniej stosowano ostatnie wyst\u0105pienie).\n<li class=\"l\"> Przy wywo\u0142aniu narz\u0119dzia ssh-keygen z flag\u0105 '-A' (generacja wszystkich typ\u00f3w kluczy hosta wspieranych domy\u015blnie) wy\u0142\u0105czona jest generacja kluczy DSA, kt\u00f3re od kilku lat nie s\u0105 u\u017cywane domy\u015blnie.\n<li class=\"l\"> W sftp-server i sftp zaimplementowano rozszerzenie 'users-groups-by-id@openssh.com', kt\u00f3re umo\u017cliwia klientowi \u017c\u0105danie nazw u\u017cytkownik\u00f3w i grup odpowiadaj\u0105cych podanemu zestawowi cyfrowych identyfikator\u00f3w (uid i gid). W sftp to rozszerzenie zosta\u0142o wykorzystane do wy\u015bwietlania nazw podczas wyprowadzania zawarto\u015bci katalogu.\n<li class=\"l\"> W sftp-server zaimplementowano rozszerzenie 'home-directory' w celu ujawnienia \u015bcie\u017cek ~\/ i ~user\/, alternatywnego wcze\u015bniej proponowanemu rozszerzeniu 'expand-path@openssh.com' (rozszerzenie 'home-directory' zosta\u0142o zaproponowane dla standaryzacji i jest ju\u017c wspierane przez niekt\u00f3re klient\u00f3w).\n<li class=\"l\"> W ssh-keygen i sshd dodano mo\u017cliwo\u015b\u0107 okre\u015blenia czasu w strefie czasowej UTC przy definiowaniu okres\u00f3w wa\u017cno\u015bci certyfikat\u00f3w i kluczy, opr\u00f3cz czasu systemowego.\n<li class=\"l\"> W sftp dozwolone jest podawanie dodatkowych argument\u00f3w w opcji '-D' (na przyk\u0142ad '\/usr\/libexec\/sftp-server -el debug3').\n<li class=\"l\"> W ssh-keygen dozwolone jest u\u017cycie flagi '-U' (u\u017cycie ssh-agent) wraz z operacjami '-Y sign', aby okre\u015bli\u0107, \u017ce prywatne klucze s\u0105 umieszczone w ssh-agent.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57871\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.1, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c SSH 2.0 \u0438 SFTP. \u0412\u044b\u043f\u0443\u0441\u043a \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0437\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u0449\u0438\u0439 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043e\u043a, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c\u0438 \u043f\u0440\u0438 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 \u043f\u0430\u043c\u044f\u0442\u044c\u044e: \u041e\u0434\u043d\u043e\u0431\u0430\u0439\u0442\u043e\u0432\u043e\u0435 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0432 \u043a\u043e\u0434\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 SSH-\u0431\u0430\u043d\u043d\u0435\u0440\u0430 \u0432 \u0443\u0442\u0438\u043b\u0438\u0442\u0435 ssh-keyscan. \u0414\u0432\u043e\u0439\u043d\u043e\u0439 \u0432\u044b\u0437\u043e\u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 free() [&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-105252","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\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 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SFTP.","og:url":"https:\/\/prohoster.info\/pl\/blog\/news\/reliz-openssh-9-1","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":"2022-10-05T07:36:48+00:00","article:modified_time":"2022-10-05T07:36:48+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\/105252","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/comments?post=105252"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/posts\/105252\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/media?parent=105252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/categories?post=105252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pl\/wp-json\/wp\/v2\/tags?post=105252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}