{"id":167221,"date":"2026-04-02T23:11:54","date_gmt":"2026-04-02T21:11:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-10-3"},"modified":"2026-04-04T11:22:40","modified_gmt":"2026-04-04T09:22:40","slug":"reliz-openssh-10-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/reliz-openssh-10-3","title":{"rendered":"Udgivelse af OpenSSH 10.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Efter et halvt \u00e5rs udvikling er udgaven OpenSSH 10.3 blevet offentliggjort, som er en \u00e5ben implementering af klienten og <a href=\"https:\/\/prohoster.info\/da\/server\/\">server<\/a> til brug med SSH 2.0 og SFTP-protokoller. De vigtigste \u00e6ndringer:<\/p>\n<ul>\n<li class=\"l\">En s\u00e5rbarhed, der tillod en angriber at f\u00e5 kontrol over brugernavnet sendt under opstart af ssh-v\u00e6rkt\u00f8jet, er blevet rettet, hvilket potentielt kunne f\u00f8re til udf\u00f8relse af vilk\u00e5rlige shell-kommandoer. S\u00e5rbarheden optr\u00e6der i systemer, der bruger substitutionen \u00ab%u\u00bb i nogle direktiver i konfigurationsfilen, s\u00e5som \u00abMatch exec\u00bb. Problemet skyldes kontrol af specialtegn i brugernavnet efter at %-substitutionerne er udf\u00f8rt i ssh_config-konfigurationsfilen.<\/li>\n<li class=\"l\">Et sikkerhedsproblem i sshd, for\u00e5rsaget af forkert matchning af authorized_keys options principals=\u00ab\u00bb med listen af navne (principal) i certifikatet i situationer, hvor der er angivet et tegn \u00ab,\u00bb. For at udnytte s\u00e5rbarheden skal der angives flere navne i authorized_keys options principals=\u00ab\u00bb og certifikatet fra certifikatmyndigheden skal indeholde flere navne adskilt af komma (hvilket normalt ikke er tilladt). Adf\u00e6rden i forhold til certifikater med tomt navn er \u00e6ndret \u2014 tidligere faldt et tomt navn ind under alle authorized_keys options principals=\u00ab\u00bb, men nu falder det ikke ind under.<\/li>\n<li class=\"l\">I scp er der rettet et problem, hvor filoverf\u00f8rsler med root-rettigheder med indstillingen \u00ab-O\u00bb og uden indstillingen \u00ab-p\u00bb ikke ryddede setuid\/setgid-flags efter upload.<\/li>\n<li class=\"l\">I sshd er der rettet et problem med h\u00e5ndteringen af ECDSA-n\u00f8gler i direktiverne PubkeyAcceptedAlgorithms og HostbasedAcceptedAlgorithms, hvorved enhver ECDSA-algoritme (f.eks. \u00abecdsa-sha2-nistp384\u00bb) ogs\u00e5 accepterede alle andre ECDSA-baserede algoritmer, selvom de ikke blev n\u00e6vnt i listen over tilladte.<\/li>\n<li class=\"l\">I ssh og sshd er der tilf\u00f8jet support for ID'er (codepoint) defineret af IANA i specifikationen draft-ietf-sshm-ssh-agent i interaktion med SSH-agenter. Tidligere anvendte ID'er af typen \u00ab@openssh.com\u00bb er fortsat underst\u00f8ttet.<\/li>\n<li class=\"l\">I ssh-agent er der implementeret en udvidelse \u00abquery\u00bb, beskrevet i specifikationen draft-ietf-sshm-ssh-agent, som muligg\u00f8r bestemmelse af de funktioner, agenten underst\u00f8tter. For at anmode om en liste over underst\u00f8ttede protokol-udvidelser via en query-anmodning er der tilf\u00f8jet indstillingen \u00ab-Q\u00bb til ssh-add.<\/li>\n<li class=\"l\">I sshd_config er det nu muligt at angive flere filer i direktivet RevokedKeys, og i ssh_config \u2014 i direktivet RevokedHostKeys.<\/li>\n<li class=\"l\">I ssh er der tilf\u00f8jet en escape-kommando &#171;~I&#187; og en mulighed &#171;-O conninfo&#187; til at vise information om den nuv\u00e6rende forbindelse, samt en mulighed &#171;-O channels&#187; til at vise information om \u00e5bne kanaler.<\/li>\n<li class=\"l\">I sshd er der i direktivet PerSourcePenalties implementeret en mulighed &#8216;invaliduser&#8217; for at tilf\u00f8je en forsinkelse i tilf\u00e6lde af fors\u00f8g p\u00e5 login med en ikke-eksisterende bruger (standard er 5 sekunder). Der er tilf\u00f8jet mulighed for at angive ikke-heltal v\u00e6rdi for forsinkelsen.<\/li>\n<li class=\"l\">I sshd er der tilf\u00f8jet indstillingen GSSAPIDelegateCredentials for at styre modtagelsen af delegerede legitimationsoplysninger givet af klienten.<\/li>\n<li class=\"l\">I ssh-keygen er der tilf\u00f8jet st\u00f8tte til at skrive ED25519-n\u00f8gler i PKCS8-format.<\/li>\n<li class=\"l\">Der er tilf\u00f8jet st\u00f8tte til digitale signaturer ed25519, implementeret gennem libcrypto.<\/li>\n<\/ul>\n<p>Kilde: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65126\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0433\u043e\u0434\u0430 \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 10.3, \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: \u0423\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443, \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u044e\u0449\u0435\u043c\u0443 \u0438\u043c\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f, \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u043e\u0435 \u043f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u0443\u0442\u0438\u043b\u0438\u0442\u044b ssh, \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0445 shell-\u043a\u043e\u043c\u0430\u043d\u0434. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 &#171;%u&#187; \u0432 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u0430\u0445 \u0444\u0430\u0439\u043b\u0430 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a &#171;Match exec&#187;. [&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-167221","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0433\u043e\u0434\u0430 \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 10.3, \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 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SFTP.","og:url":"https:\/\/prohoster.info\/da\/blog\/news\/reliz-openssh-10-3","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":"2026-04-02T21:11:54+00:00","article:modified_time":"2026-04-04T09:22:40+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\/da\/wp-json\/wp\/v2\/posts\/167221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/comments?post=167221"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/167221\/revisions"}],"predecessor-version":[{"id":167487,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/167221\/revisions\/167487"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media?parent=167221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/categories?post=167221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/tags?post=167221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}