{"id":182500,"date":"2026-07-07T04:53:59","date_gmt":"2026-07-07T02:54:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-openssh-10-4"},"modified":"2026-07-07T04:53:59","modified_gmt":"2026-07-07T02:54:00","slug":"dostupen-openssh-10-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/dostupen-openssh-10-4","title":{"rendered":"OpenSSH 10.4 on n\u00fc\u00fcd saadaval","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>P\u00e4rast kolme kuu arendust on avaldatud OpenSSH 10.4, avatud rakenduse kliendi ja serveri v\u00e4ljaanne, et t\u00f6\u00f6tada SSH 2.0 ja SFTP protokollide kaudu. Peamised muudatused:  <\/p>\n<ul>\n<li class=\"l\"> Lisatud eksperimentaalne tugi digitaalsete allkirjade koostatud skeemile &#171;mldsa44-ed25519&#187;, mis \u00fchendab postkvantse algoritmi ML-DSA 44 ja Ed25519 p\u00f5hineva elliptiliste k\u00f5verate algoritmi. Toe lubamiseks tuleb lisada &#171;mldsa44-ed25519&#187; direktiividesse HostKeyAlgorithms ja PubkeyAcceptedAlgorithms. V\u00f5tmete genereerimiseks v\u00f5ib kasutada k\u00e4sku &#171;ssh-keygen -t mldsa44-ed25519&#187;.\n<li class=\"l\"> Ssh ja sshd-s on kasutusele v\u00f5etud uus rakendus mustrite vastavuse s\u00fcsteemile, mis p\u00f5hineb mitte-deterministlikul l\u00f5ppautomaatil ning ei ole vastuv\u00f5tlik maskide, mis sisaldavad palju s\u00fcmboleid &#171;*&#187;, eksponentsiaalse kasvu probleemile.\n<li class=\"l\"> Linuxi versioonide sshd k\u00e4itumine, kui s\u00fcsteemi k\u00f5nede filtreerimine on aktiveeritud seccomp abil, on muutunud. Varem t\u00f5i SECCOMP v\u00f5i NO_NEW_PRIVS aktiveerimise t\u00f5rge Linuxi s\u00fcsteemides, kus neid polnud toetatud, logisse hoiatuss\u00f5numi ja j\u00e4tkas t\u00f6\u00f6d ilma isoleerimiseta, kuid n\u00fc\u00fcd toob see kaasa \u00e4kilise l\u00f5petamise.\n<li class=\"l\"> Kasutades valikut &#171;sshd -G&#187;, salvestatakse konfiguratsioonifaile n\u00fc\u00fcd direktiivid suure ja v\u00e4ikese t\u00e4hega, selle asemel et salvestada ainult v\u00e4ikeste t\u00e4htedega (nt &#171;PubkeyAuthentication&#187; asemel &#171;pubkeyauthentication&#187;).\n<li class=\"l\"> ssh ja sshd k\u00e4itumine on kohandatud RFC 4253 standardiga: v\u00f5tmevahetusprotsessi k\u00e4igus l\u00e4hevad v\u00f5tmevahetuse ajal saadetud s\u00f5numid, mis ei ole seotud v\u00f5tmete vahetamisega, n\u00fc\u00fcd t\u00f5rke l\u00f5petamiseni. Varem said kurjategijad korraldada DoS-r\u00fcnnaku, saates v\u00f5tmevahetuse ajal l\u00f5putult kolmandate osapoolte s\u00f5numeid, mis puhverdati <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-dronten\/\" title=\"serveris\" data-wpil-keyword-link=\"linked\">serveris<\/a> ja kulutasid m\u00e4lu.            <\/ul>\n<p>Mitmed turvaprobleemid on k\u00f5rvaldatud:  <\/p>\n<ul>\n<li class=\"l\"> ssh utiliidis on k\u00f5rvaldatud potentsiaalne m\u00e4lu kasutamine p\u00e4rast vabastamist (use-after-free) r\u00fcndava isiku juurde p\u00e4\u00e4semise ajal. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\" title=\"serveri\" data-wpil-keyword-link=\"linked\">serveri<\/a>. Probleem on kuritarvitatud hostiv\u00f5tme muutmise kaudu v\u00f5tmevahetuse k\u00e4igus.\n<li class=\"l\"> Sftp-s on haavatavus, mis v\u00f5imaldab faile laadida teise kausta, kui \u00fchendust v\u00f5tta pahatahtliku serveriga k\u00e4skluse kujul &#171;sftp host: \/path .&#187;.\n<li class=\"l\"> scp haavatavus, mis v\u00f5imaldab failide kopeerimist kahe v\u00e4lise s\u00fcsteemi vahel. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-dusseldorf\/\" title=\"serveritega\" data-wpil-keyword-link=\"linked\">serveritega<\/a>, \u00fcks, mis on r\u00fcndaja kontrolli all, peaks korraldama failide salvestamise vanemasse kataloogi, mis asub sihtkatalooge madalamal tasemel.\n<li class=\"l\"> Sshed-s lahendati probleem, mis ilmnes sisemise SFTP-serveri kasutamisel (&#171;internal-sftp&#187;), mis on vaikimisi v\u00e4lja l\u00fclitatud. Probleem on seotud pikkade argumendi jada katkemisega p\u00e4rast 9. argumenti, mis viib j\u00e4rgmiste argumentide viskamiseni. Seega v\u00f5ivad potentsiaalselt j\u00e4\u00e4da v\u00e4lja turvalisuse tagamisega seotud valikud.\n<li class=\"l\"> Sshed-s on k\u00f5rvaldatud puudus, mille t\u00f5ttu direktiiv &#171;DisableForwarding=yes&#187; ei keelanud tunnelite loomise v\u00f5imalust, mis oli lubatud valikuga &#171;PermitTunnel=yes&#187; (vaikimisi ei ole aktiveeritud).\n<li class=\"l\"> Sshed-s on lahendatud probleem, mida sai kasutada teenuse keelamiseks autentimise eelsetes etappides, kui GSSAPIAuthentication direktiiv on seadetes sisse l\u00fclitatud (vaikimisi on see keelatud). Probleemi ei blokeerita &#171;MaxAuthTries&#187; limiidi kaudu, kuid see kuulub &#171;PerSourcePenalties&#187; piirangute alla.\n<li class=\"l\"> sshd-s on k\u00f5rvaldatud probleemid, mille t\u00f5ttu ei lisatud alati minimaalset viivitust autentimise katsete vahel.        <\/ul>\n<p>Allikas: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65854\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0442\u0440\u0451\u0445 \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 \u0432\u044b\u043f\u0443\u0441\u043a OpenSSH 10.4, \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. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043a\u043e\u043c\u0431\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0441\u0445\u0435\u043c\u044b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043f\u043e\u0434\u043f\u0438\u0441\u0435\u0439 &#171;mldsa44-ed25519&#187;, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0438\u0439 \u043f\u043e\u0441\u0442\u043a\u0432\u0430\u043d\u0442\u043e\u0432\u044b\u0439 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c ML-DSA 44 \u0438 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u043d\u0430 \u0431\u0430\u0437\u0435 \u044d\u043b\u043b\u0438\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043a\u0440\u0438\u0432\u044b\u0445 Ed25519. \u0414\u043b\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c &#171;mldsa44-ed25519&#187; \u0432 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u044b HostKeyAlgorithms \u0438 PubkeyAcceptedAlgorithms. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182500","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 \u0442\u0440\u0451\u0445 \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 \u0432\u044b\u043f\u0443\u0441\u043a OpenSSH 10.4, \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 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