{"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\/ro\/blog\/news\/reliz-openssh-9-1","title":{"rendered":"Lansarea OpenSSH 9.1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Dup\u0103 \u0219ase luni de dezvoltare, a fost lansat\u0103 versiunea OpenSSH 9.1, o implementare open-source a clientului \u0219i serverului pentru protocolul SSH 2.0 \u0219i SFTP. Aceast\u0103 versiune este caracterizat\u0103 \u00een principal prin corectarea eroilor, incluz\u00e2nd eliminarea mai multor vulnerabilit\u0103\u021bi poten\u021biale cauzate de probleme de gestionare a memoriei:  <\/p>\n<ul>\n<li class=\"l\"> Supra\u00eenc\u0103rcare de un byte \u00een codul de procesare a bannerului SSH \u00een utilitarul ssh-keyscan.\n<li class=\"l\"> Apel dublu al func\u021biei free() \u00een cazul unei erori la calcularea hash-urilor pentru fi\u0219iere \u00een codul de generare \u0219i verificare a semn\u0103turilor digitale \u00een utilitarul ssh-keygen.\n<li class=\"l\"> Apel dublu al func\u021biei free() la procesarea erorilor \u00een utilitarul ssh-keysign.    <\/ul>\n<p>Modific\u0103ri principale:  <\/p>\n<ul>\n<li class=\"l\"> \u00cen ssh \u0219i sshd a fost ad\u0103ugat\u0103 directiva RequiredRSASize, care permite stabilirea dimensiunii minime admisibile a cheilor RSA. \u00cen sshd, cheile de dimensiuni mai mici vor fi ignorate, iar \u00een ssh vor duce la \u00eentreruperea conexiunii.\n<li class=\"l\"> Versiunea portabil\u0103 a OpenSSH a fost adaptat\u0103 pentru a utiliza chei SSH pentru semnarea digital\u0103 a commit-urilor \u0219i etichetelor \u00een Git.\n<li class=\"l\"> Directivele SetEnv din fi\u0219ierele de configurare ssh_config \u0219i sshd_config aplic\u0103 acum valoarea primei men\u021bion\u0103ri a variabilei de mediu, dac\u0103 aceasta este definit\u0103 de mai multe ori \u00een configurare (anterior se aplica ultima men\u021bionare).\n<li class=\"l\"> C\u00e2nd se apeleaz\u0103 utilitarul ssh-keygen cu flag-ul &#171;-A&#187; (generarea tuturor tipurilor suportate de chei de gazd\u0103 \u00een mod implicit), generarea cheilor DSA este dezactivat\u0103, deoarece nu mai sunt folosite de c\u00e2\u021biva ani \u00een mod implicit.\n<li class=\"l\"> \u00cen sftp-server \u0219i sftp este implementat\u0103 extensia &#171;users-groups-by-id@openssh.com&#187;, care ofer\u0103 clientului posibilitatea de a solicita numele utilizatorilor \u0219i grupurilor corespunz\u0103toare unui set specificat de identificatori numerici (uid \u0219i gid). \u00cen sftp, aceast\u0103 extensie este utilizat\u0103 pentru afi\u0219area numelui \u00een lista de con\u021binut a directorului.\n<li class=\"l\"> \u00cen sftp-server este implementat\u0103 extensia &#171;home-directory&#187; pentru expunerea c\u0103ilor ~\\\/ \u0219i ~user\\\/, alternativ\u0103 propus\u0103 anterior pentru acelea\u0219i scopuri extensiei &#171;expand-path@openssh.com&#187; (extensia &#171;home-directory&#187; a fost propus\u0103 pentru standardizare \u0219i este deja suportat\u0103 de unele clien\u021bi).\n<li class=\"l\"> A fost ad\u0103ugat\u0103 \u00een ssh-keygen \u0219i sshd posibilitatea de a specifica ora \u00een fusul orar UTC la stabilirea intervalelor de valabilitate ale certificatelor \u0219i cheilor, pe l\u00e2ng\u0103 timpul de sistem.\n<li class=\"l\"> \u00cen sftp este permis\u0103 specificarea argumentelor suplimentare \u00een op\u021biunea &#171;-D&#187; (de exemplu, &#171;\\\/usr\\\/libexec\\\/sftp-server -el debug3&#187;).\n<li class=\"l\"> \u00cen ssh-keygen este permis\u0103 utilizarea flag-ului &#171;-U&#187; (utilizarea ssh-agent) \u00eempreun\u0103 cu opera\u021biile &#171;-Y sign&#187; pentru a determina c\u0103 cheile private sunt plasate \u00een ssh-agent.<br \/>\n<br \/>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57871\">opennet.ro<\/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 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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