{"id":88071,"date":"2020-07-12T01:43:42","date_gmt":"2020-07-11T23:43:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-tor-0-3-5-11-0-4-2-8-i-0-4-3-6-s-ustraneniem-dos-uyazvimosti"},"modified":"2020-07-12T01:43:42","modified_gmt":"2020-07-11T23:43:42","slug":"obnovlenie-tor-0-3-5-11-0-4-2-8-i-0-4-3-6-s-ustraneniem-dos-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/obnovlenie-tor-0-3-5-11-0-4-2-8-i-0-4-3-6-s-ustraneniem-dos-uyazvimosti","title":{"rendered":"Update Tor 0.3.5.11, 0.4.2.8 und 0.4.3.6 zur Behebung einer DoS-Sicherheitsanf\u00e4lligkeit","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/blog.torproject.org\/node\/1900\">Vorstellung<\/a><\/noindex> Korrekturversionen des Tor-Toolkits (0.3.5.11, 0.4.2.8, 0.4.3.6 und 4.4.2-alpha), die zur Organisation des anonymen Netzwerks Tor verwendet werden. In den neuen Versionen wurde behoben <noindex><a rel=\"nofollow\" href=\"https:\/\/gitlab.torproject.org\/legacy\/trac\/-\/issues\/33119\">eine Schwachstelle<\/a><\/noindex> (CVE-2020-15572), verursacht durch den Zugriff auf einen Speicherbereich au\u00dferhalb der Grenzen des zugewiesenen Puffers. Die Schwachstelle erm\u00f6glicht es einem entfernten Angreifer, einen Absturz des tor-Prozesses auszul\u00f6sen. Das Problem tritt nur auf, wenn es mit der NSS-Bibliothek kompiliert wird (standardm\u00e4\u00dfig wird Tor mit OpenSSL kompiliert, und die Verwendung von NSS erfordert das Setzen der Option &#171;&#8212;enable-nss&#187;).<\/p>\n<p>Zus\u00e4tzlich <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.torproject.org\/v2-deprecation-timeline\">vorgestellt<\/a><\/noindex> der Plan zur Einstellung der Unterst\u00fctzung der zweiten Version des Onion-Service-Protokolls (fr\u00fcher als versteckte Dienste bezeichnet). Vor anderthalb Jahren wurde in der Version 0.3.2.9 den Nutzern die <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=4787\">wurde vorgeschlagen<\/a><\/noindex> dritte Version des Onion-Service-Protokolls vorgestellt, die durch den Wechsel zu 56-Zeichen-Adressen, verbesserte Sicherheit gegen Datenlecks durch Verzeichnisserver, eine erweiterbare modulare Struktur und die Verwendung der Algorithmen SHA3, ed25519 und curve25519 anstelle von SHA1, DH und RSA-1024 bemerkenswert ist. <\/p>\n<p>Die zweite Version des Protokolls wurde vor etwa 15 Jahren entwickelt und kann aufgrund der Verwendung veralteter Algorithmen unter modernen Bedingungen nicht als sicher angesehen werden. Angesichts des Ablaufs der Unterst\u00fctzung f\u00fcr \u00e4ltere Zweige unterst\u00fctzt derzeit jedes aktuelle Tor-Gateway die dritte Version des Protokolls, die standardm\u00e4\u00dfig bei der Erstellung neuer Onion-Services angeboten wird. <\/p>\n<p>Am 15. September 2020 wird Tor damit beginnen, Betreiber und Kunden \u00fcber das Absterben der zweiten Version des Protokolls zu warnen. Am 15. Juli 2021 wird die Unterst\u00fctzung der zweiten Version des Protokolls aus dem Code entfernt, und am 15. Oktober 2021 wird eine neue stabile Tor-Version ohne Unterst\u00fctzung des alten Protokolls ver\u00f6ffentlicht. Somit haben die Besitzer \u00e4lterer Onion-Services 16 Monate Zeit, um auf die neue Protokollversion umzusteigen, die die Generierung einer neuen 56-Zeichen-Adresse f\u00fcr den Dienst erfordert.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53333\">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\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Tor (0.3.5.11, 0.4.2.8, 0.4.3.6 \u0438 4.4.2-alpha), \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0430\u043d\u043e\u043d\u0438\u043c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 Tor. \u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2020-15572), \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u0430\u044f \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435\u043c \u043a \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 \u0432\u043d\u0435 \u0433\u0440\u0430\u043d\u0438\u0446 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0438\u043d\u0438\u0446\u0438\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043a\u0440\u0430\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 tor. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 \u0441 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u043e\u0439 NSS (\u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e Tor \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u0442\u0441\u044f \u0441 OpenSSL, \u0430 [&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-88071","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\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Tor (0.3.5.11, 0.4.2.8, 0.4.3.6 \u0438 4.4.2-alpha), \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f 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