{"id":103738,"date":"2022-04-08T15:36:50","date_gmt":"2022-04-08T13:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp"},"modified":"2022-04-08T15:36:50","modified_gmt":"2022-04-08T13:36:50","slug":"reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/reliz-openssh-9-0-s-perevodom-scp-na-protokol-sftp","title":{"rendered":"Vyd\u00e1n\u00ed OpenSSH 9.0 s p\u0159evodem scp na protokol SFTP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byla p\u0159edstavena nov\u00e1 verze OpenSSH 9.0, open source implementace klienta a serveru pro pr\u00e1ci s protokoly SSH 2.0 a SFTP. V nov\u00e9 verzi byla utility scp ve v\u00fdchoz\u00edm nastaven\u00ed p\u0159evedena na pou\u017e\u00edv\u00e1n\u00ed SFTP m\u00edsto zastaral\u00e9ho protokolu SCP\/RCP.       <\/p>\n<p>V SFTP jsou pou\u017eity p\u0159edv\u00eddateln\u011bj\u0161\u00ed metody zpracov\u00e1n\u00ed n\u00e1zv\u016f a nen\u00ed vyu\u017e\u00edv\u00e1na manipulace s glob vzory v n\u00e1zvech soubor\u016f p\u0159es shell na druh\u00e9m hostiteli, co\u017e vytv\u00e1\u0159\u00ed bezpe\u010dnostn\u00ed probl\u00e9my. Konkr\u00e9tn\u011b, p\u0159i pou\u017eit\u00ed SCP a RCP server rozhoduje o tom, kter\u00e9 soubory a slo\u017eky m\u00e1 odeslat klientovi, zat\u00edmco klient pouze kontroluje spr\u00e1vnost vr\u00e1cen\u00fdch n\u00e1zv\u016f objekt\u016f, co\u017e v p\u0159\u00edpad\u011b nedostate\u010dn\u00fdch kontrol na stran\u011b klienta umo\u017e\u0148uje <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-shicago\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2910\">serveru<\/a> p\u0159edat jin\u00e9 n\u00e1zvy soubor\u016f, kter\u00e9 se li\u0161\u00ed od po\u017eadovan\u00fdch.     <\/p>\n<p>Protokol SFTP je zbaven uveden\u00fdch probl\u00e9m\u016f, ale nepodporuje roz\u0161i\u0159ov\u00e1n\u00ed speci\u00e1ln\u00edch cest, jako je \u00ab~\/\u00bb. Aby bylo mo\u017en\u00e9 tento rozd\u00edl odstranit, po\u010d\u00ednaje OpenSSH 8.7 je v implementaci SFTP serveru podporov\u00e1no roz\u0161\u00ed\u0159en\u00ed protokolu \u00abexpand-path@openssh.com\u00bb pro roz\u0161i\u0159ov\u00e1n\u00ed cest ~\/ a ~user\/.     <\/p>\n<p>P\u0159i pou\u017e\u00edv\u00e1n\u00ed SFTP se u\u017eivatel\u00e9 mohou tak\u00e9 setkat s nekompatibilitou, kter\u00e1 je zp\u016fsobena nutnost\u00ed dvojit\u00e9ho escapingu speci\u00e1ln\u00edch znak\u016f rozbalen\u00ed cest v dotazech SCP a RCP, aby se p\u0159ede\u0161lo jejich interpretaci na vzd\u00e1len\u00e9 stran\u011b. V SFTP takov\u00e9 escapov\u00e1n\u00ed nen\u00ed nutn\u00e9 a zbyte\u010dn\u00e9 uvozovky mohou v\u00e9st k chyb\u011b p\u0159enosu dat. P\u0159i tom v\u00fdvoj\u00e1\u0159i OpenSSH odm\u00edtli p\u0159id\u00e1n\u00ed roz\u0161\u00ed\u0159en\u00ed pro opakov\u00e1n\u00ed chov\u00e1n\u00ed scp v tomto p\u0159\u00edpad\u011b, proto\u017ee dvojit\u00e9 escapov\u00e1n\u00ed je pova\u017eov\u00e1no za nedostatek, kter\u00fd nem\u00e1 smysl opakovat.    <\/p>\n<p>Dal\u0161\u00ed zm\u011bny v nov\u00e9m vyd\u00e1n\u00ed:  <\/p>\n<ul>\n<li class=\"l\"> V ssh a sshd je ve v\u00fdchoz\u00edm nastaven\u00ed zapnut\u00fd hybridn\u00ed algoritmus v\u00fdm\u011bny kl\u00ed\u010d\u016f \u00absntrup761x25519-sha512@openssh.com\u00bb (ECDH\/x25519 + NTRU Prime), odoln\u00fd v\u016f\u010di prolomen\u00ed na kvantov\u00fdch po\u010d\u00edta\u010d\u00edch a kombinovan\u00fd s ECDH\/x25519 pro blokaci mo\u017en\u00fdch probl\u00e9m\u016f v NTRU Prime, kter\u00e9 se mohou v budoucnu objevit. Ve seznamu KexAlgorithms, ur\u010duj\u00edc\u00edm po\u0159ad\u00ed v\u00fdb\u011bru metod v\u00fdm\u011bny kl\u00ed\u010d\u016f, je nyn\u00ed uveden\u00fd algoritmus na prvn\u00edm m\u00edst\u011b a m\u00e1 vy\u0161\u0161\u00ed prioritu ne\u017e algoritmy ECDH a DH.\n<p>Kvantov\u00e9 po\u010d\u00edta\u010de zat\u00edm nedos\u00e1hly \u00farovn\u011b, kter\u00e1 by umo\u017enila prolomen\u00ed tradi\u010dn\u00edch kl\u00ed\u010d\u016f, ale pou\u017eit\u00ed hybridn\u00ed ochrany ochr\u00e1n\u00ed u\u017eivatele p\u0159ed \u00fatoky spojen\u00fdmi s uchov\u00e1v\u00e1n\u00edm zachycen\u00fdch SSH relac\u00ed s o\u010dek\u00e1v\u00e1n\u00edm, \u017ee je bude mo\u017en\u00e9 de\u0161ifrovat v budoucnu, a\u017e budou k dispozici pot\u0159ebn\u00e9 kvantov\u00e9 po\u010d\u00edta\u010de.    <\/p>\n<li class=\"l\"> Do sftp-serveru bylo p\u0159id\u00e1no roz\u0161\u00ed\u0159en\u00ed \u00abcopy-data\u00bb, kter\u00e9 umo\u017e\u0148uje kop\u00edrovat data na stran\u011b serveru, ani\u017e by byly do\u010dasn\u011b odes\u00edl\u00e1ny klientovi, pokud se zdrojov\u00fd a c\u00edlov\u00fd soubor nach\u00e1zej\u00ed na stejn\u00e9m serveru. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/dts-newyork\/\"   title=\"serveru\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2706\">serveru<\/a>.\n<li class=\"l\"> Do n\u00e1stroje sftp byla p\u0159id\u00e1na p\u0159\u00edkaz \u00abcp\u00bb pro iniciaci kop\u00edrov\u00e1n\u00ed soubor\u016f na stran\u011b serveru klientem.    <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56991\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.0, \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. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u0442\u0438\u043b\u0438\u0442\u0430 scp \u043f\u0435\u0440\u0435\u0432\u0435\u0434\u0435\u043d\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 SFTP \u0432\u043c\u0435\u0441\u0442\u043e \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 SCP\/RCP. \u0412 SFTP \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438\u043c\u0451\u043d \u0438 \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 glob-\u0448\u0430\u0431\u043b\u043e\u043d\u043e\u0432 \u0432 \u0438\u043c\u0435\u043d\u0430\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 \u0447\u0435\u0440\u0435\u0437 shell \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u0445\u043e\u0441\u0442\u0430, \u0441\u043e\u0437\u0434\u0430\u044e\u0449\u0430\u044f [&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-103738","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\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 OpenSSH 9.0, \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.\" \/>\n\t<meta name=\"robots\" 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