{"id":123456,"date":"2025-04-10T03:05:07","date_gmt":"2025-04-10T01:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-10-0"},"modified":"2025-04-10T03:05:07","modified_gmt":"2025-04-10T01:05:07","slug":"reliz-openssh-10-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/reliz-openssh-10-0","title":{"rendered":"Izdaja OpenSSH 10.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Izdana je verzija OpenSSH 10.0, otvorene implementacije klijenta i servera za rad sa protokolima SSH 2.0 i SFTP. Glavne promene:      <\/p>\n<ul>\n<li class=\"l\"> Podr\u0161ka za digitalne potpise zasnovane na DSA algoritmu je uklonjena, \u010diji nivo za\u0161tite ne odgovara savremenim standardima. Tro\u0161kovi nastavka odr\u017eavanja nesigurnog DSA algoritma nisu opravdani, a njegovo uklanjanje \u0107e podsta\u0107i prekid podr\u0161ke DSA u drugim SSH implementacijama i kriptografskim bibliotekama. Po defaultu, kori\u0161\u0107enje DSA klju\u010deva prestalo je jo\u0161 2015. godine.\n<li class=\"l\"> Nastavljeno je razdvajanje sshd na nekoliko odvojenih izvr\u0161nih fajlova. U OpenSSH 9.8 izdvojen je proces sshd-session, koji izvr\u0161ava zadatke povezane sa obradom sesija. U OpenSSH 10.0 je iz sshd-session-a u poseban proces sshd-auth preba\u010den kod koji vr\u0161i autentifikaciju. Proces sshd-auth omogu\u0107ava dodatnu izolaciju podataka povezanih sa autentifikacijom u adresnom prostoru odvojenog procesa, \u0161to onemogu\u0107ava pristup tim podacima u memoriji u slu\u010daju napada na kod koji se koristi za obradu faza veze do zavr\u0161etka autentifikacije. Pored toga, promena pomalo smanjuje potro\u0161nju memorije jer je kod povezan sa autentifikacijom sada prisutan u memoriji samo tokom procesa autentifikacije, a zatim se osloba\u0111a po zavr\u0161etku procesa sshd-auth.\n<li class=\"l\"> V ssh je standardno uporabljen hibridni algoritem izmenjave klju\u010dev \u201emlkem768x25519-sha256\u201c, odporen na poskuse preloma z kvantnim ra\u010dunalnikom in predstavljajo\u010d kombinacijo X25519 ECDH in algoritma ML-KEM (CRYSTALS-Kyber), standardiziranega pri Nacionalnem in\u0161titutu za standarde in tehnologijo ZDA (NIST). ML-KEM uporablja metode kriptografije, ki temeljijo na re\u0161evanju problemov teorije re\u0161etk, pri \u010demer \u010das re\u0161evanja ni odvisen od obi\u010dajnih in kvantnih ra\u010dunalnikov.\n<li class=\"l\"> V ssh_config sta v direktive SetEnv in User dodana podpora za zamenjavo \u201e%-token\u201c in raz\u0161iritev okoljskih spremenljivk.\n<li class=\"l\"> V ssh_config in sshd_config je dodana podpora za izraz \u201eMatch version\u201c, ki omogo\u010da uporabo nastavitev glede na obstoje\u010do razli\u010dico OpenSSH; na primer, za vezavo na OpenSSH 10 lahko navedete \u201eMatch version OpenSSH_10.*\u201c.\n<li class=\"l\"> U ssh_config dodata je podr\u0161ka za izraze:\n<ul>\n<li class=\"l\"> \u201eMatch sessiontype\u201c, ki omogo\u010da uporabo nastavitev glede na tip zahtevane seje: \u201eshell\u201c za interaktivne seje, \u201eexec\u201c za izvajanje ukazov, \u201esubsystem\u201c za sftp in \u201enone\u201c za tuneliranje in preusmerjanje prometa.\n<li class=\"l\"> \u201eMatch command\u201c za vezavo dejanj na ukaze, navedene v ukazni vrstici za izvajanje prek ssh.\n<li class=\"l\"> \u2018Match tagged \u201e\u201c\u2018 in \u2018Match command \u201e\u201c\u2018 za vezavo na prazne oznake in zagon ssh brez navajanja izdanega ukaza.    <\/ul>\n<li class=\"l\"> V sshd_config je dovoljeno uporabljati maske v datote\u010dnih poteh, navedenih v direktivah AuthorizedKeysFile in AuthorizedPrincipalsFile.\n<li class=\"l\"> V ssh odjemalcu je dodana podpora za mo\u017enost \u201eVersionAddendum\u201c za dodajanje poljubnega besedila k razli\u010dici verzije (prej je bila ta mo\u017enost na voljo samo za <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sl\/server\/dts-los-angeles\/\"   title=\"stre\u017enika\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3959\">stre\u017enika<\/a> sshd).\n<li class=\"l\"> V pripomo\u010dkih scp in sftp je zagotovljen prenos nastavitve \u201eControlMaster no\u201c za prepoved uporabe obstoje\u010dih povezav pri ponovnem povezovanju na gostitelja.\n<li class=\"l\"> V sshd je privzeto onemogo\u010dena podpora za implementacijo DiDiffie-Hellman algoritma v kon\u010dnem polju, kar je vodilo do odstranitve metod \u201ediffie-hellman-group*\u201c in \u201ediffie-hellman-group-exchange-*\u201c iz seznama KEXAlgorithms. V primerjavi s to metodo temelje\u010do na elipti\u010dnih krivuljah, je oddaljena implementacija po\u010dasnej\u0161a in zahteva dodatne ra\u010dunske vire pri enakem nivoju varnosti.\n<li class=\"l\"> V ssh, ko izbirate \u0161ifro za povezavo, je na\u010din AES-GCM zdaj bolj za\u017eelen kot AES-CTR. Privzeto je nastavljen seznam prednostnih \u0161ifer: Chacha20\/Poly1305, AES-GCM (128\/256) in AES-CTR (128\/192\/256).\n<li class=\"l\"> V ssh-agentu je izvedeno odstranjevanje vseh nalo\u017eenih klju\u010dev ob prejemu signala SIGUSR1.\n<li class=\"l\"> V ssh-keygen je dodana podpora za FIDO tokene, ki ne vra\u010dajo podatkov o potrdilu, kot je WinHello.\n<li class=\"l\"> V ssh-agentu je dodana mo\u017enost \u201e-Owebsafe-allow=\u2026\u201c za prepis bele liste aplikacij FIDO.\n<li class=\"l\"> Dodana je eksperimentalna programska oprema regress\/misc\/ssh-verify-attestation za preverjanje podatkov o potrdilu FIDO, ki jih opcijsko generira ssh-keygen ob registraciji FIDO klju\u010dev.\n<li class=\"l\"> V ssh-keygen je dovoljeno uporabiti \u201e-\u201c namesto imena datoteke.\n<li class=\"l\"> V ssh-agentu in prenosni razli\u010dici OpenSSH je dodana podpora za aktivacijo preko soketa v slogu systemd, uresni\u010dena s pomo\u010djo mehanizma LISTEN_PID\/LISTEN_FDS.\n<li class=\"l\"> V prenosni razli\u010dici:\n<ul>\n<li class=\"l\"> Implementirana je podpora za kripto knji\u017enico AWS-LC (AWS libcrypto).\n<li class=\"l\"> V sshd je dodana podpora za wtmpdb, alternativo wtmp, ki ni podvr\u017eena te\u017eavi iz leta 2038.\n<li class=\"l\"> V sshd je dodana mo\u017enost \u201e--with-linux-memlock-onfault\u201c za zaklepanje sshd v pomnilniku (prepoved izmenjave na obmo\u010dju pomnilnika).\n<li class=\"l\"> Dodana je mo\u017enost &#171;&#8212;with-security-key-standalone&#187; za sestavljanje lo\u010dene knji\u017enice sk-libfido2.\n<li class=\"l\"> Iz specifikacije RPM-paketa so odstranjene nastavitve sestavljanja za RHEL 6.    <\/ul>\n<li class=\"l\"> Sprememba v sshd, povezana z varnostjo: direktiva DisableForwarding ni pravilno prepovedala preusmerjanja protokola X11 in dostopov do ssh-agent. Preusmerjanje X11 je privzeto onemogo\u010deno na stre\u017eni\u0161ki strani, preusmerjanje ssh-agent pa na strani odjemalca.  <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63042\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 10.0, \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\u0434\u0430\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043f\u043e\u0434\u043f\u0438\u0441\u0435\u0439 \u043d\u0430 \u0431\u0430\u0437\u0435 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 DSA, \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u0437\u0430\u0449\u0438\u0442\u044b \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c. \u0417\u0430\u0442\u0440\u0430\u0442\u044b \u043d\u0430 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043d\u0435\u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0433\u043e \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 DSA \u043d\u0435 \u043e\u043f\u0440\u0430\u0432\u0434\u044b\u0432\u0430\u044e\u0442 \u0441\u0435\u0431\u044f \u0438 \u0435\u0433\u043e \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u0441\u0442\u0438\u043c\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 DSA \u0432 \u0434\u0440\u0443\u0433\u0438\u0445 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f\u0445 [&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-123456","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com 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