{"id":100517,"date":"2021-06-15T10:22:36","date_gmt":"2021-06-15T08:22:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-novoj-stabilnoj-vetki-tor-0-4-6"},"modified":"2021-06-15T10:22:36","modified_gmt":"2021-06-15T08:22:36","slug":"vypusk-novoj-stabilnoj-vetki-tor-0-4-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-novoj-stabilnoj-vetki-tor-0-4-6","title":{"rendered":"Izdanje nove stabilne verzije Tor 0.4.6.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Predstavljen je izdanje alata Tor 0.4.6.5, koje se koristi za organizaciju rada anonimne mre\u017ee Tor. Verzija Tor 0.4.6.5 priznaje se kao prvo stabilno izdanje grane 0.4.6, koja se razvijala posljednjih pet mjeseci. Grana 0.4.6 bit \u0107e pra\u0107ena u okviru redovitog ciklusa podr\u0161ke \u2014 izdavanje a\u017euriranja bit \u0107e prekinuto za 9 mjeseci ili 3 mjeseca nakon izdanja grane 0.4.7.x. Dugotrajna podr\u0161ka (LTS) osigurana je za granu 0.3.5, \u010dija \u0107e a\u017euriranja izlaziti do 1. velja\u010de 2022. godine. Istovremeno su izra\u0111ene verzije Tor 0.3.5.15, 0.4.4.9 i 0.4.5.9 u kojima su ispravljene DoS ranjivosti koje omogu\u0107uju izazivanje prekida usluge za klijente onion usluga i relaje.      <\/p>\n<p>Glavne promjene:  <\/p>\n<ul>\n<li class=\"l\"> Dodana je mogu\u0107nost stvaranja onion usluga temeljenih na tre\u0107oj verziji protokola s autentifikacijom pristupa klijenata putem datoteka u direktoriju 'authorized_clients'.\n<li class=\"l\"> Za reljeve je dodat oznaka koja omogu\u0107ava operateru \u010dvora da razumije da reljef nije uklju\u010den u konsensus tijekom izbora <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/dts-dusseldorf\/\"   title=\"poslu\u017eiteljima\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3444\">poslu\u017eiteljima<\/a> direktorija (na primjer, kada ima previ\u0161e reljeva na jednoj IP adresi).\n<li class=\"l\"> Osigurana je mogu\u0107nost prijenosa informacija o preoptere\u0107enju u podacima extrainfo, koji se mogu koristiti pri uravnote\u017eavanju optere\u0107enja u mre\u017ei. Prijenos metrike kontrolira se pomo\u0107u opcije OverloadStatistics u torrc.\n<li class=\"l\"> U sustav za\u0161tite od DoS napada dodana je mogu\u0107nost ograni\u010davanja intenziteta veza klijenata na reljeve.\n<li class=\"l\"> U reljevima je implementirano objavljivanje statistike o broju onion usluga temeljenih na tre\u0107oj verziji protokola i obujmu njihovog prometa.\n<li class=\"l\"> Iz koda za reljeve uklonjena je podr\u0161ka za opciju DirPorts, koja se ne koristi za ovu vrstu \u010dvorova.\n<li class=\"l\"> Provedena je refaktorizacija koda. Sustav za\u0161tite od DoS napada premje\u0161ten je u upravitelj subsys.\n<li class=\"l\"> Obustavljena je podr\u0161ka za stare onion usluge temeljene na drugoj verziji protokola, koja je progla\u0161ena zastarjelom prije godinu dana. Potpuno uklanjanje koda povezanog s drugom verzijom protokola o\u010dekuje se na jesen. Druga verzija protokola razvijena je prije otprilike 16 godina i zbog kori\u0161tenja zastarjelih algoritama u suvremenim uvjetima ne mo\u017ee se smatrati sigurnom. Prije dvije i pol godine u izdanju 0.3.2.9 korisnicima je ponu\u0111ena tre\u0107a verzija protokola za onion usluge, koja se isti\u010de prijelazom na 56-znamenkaste adrese, s pouzdanijom za\u0161titom od curenja podataka. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hr\/server\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1917\">servere<\/a> direktorij, pro\u0161irivo modularna struktura i kori\u0161tenje SHA3, ed25519 i curve25519 algoritama umjesto SHA1, DH i RSA-1024.\n<li class=\"l\"> Uklonjene ranjivosti:\n<ul>\n<li class=\"l\"> CVE-2021-34550 \u2014 pristup podru\u010dju memorije izvan dodijeljenog bafera u kodu za parsiranje deskriptora onion usluga temeljenih na tre\u0107oj verziji protokola. Napada\u010d mo\u017ee putem postavljanja posebno oblikovanog deskriptora onion usluge inicirati pad bilo kojeg klijenta koji poku\u0161ava pristupiti toj onion usluzi.\n<li class=\"l\"> CVE-2021-34549 \u2014 mogu\u0107nost izvo\u0111enja napada za izazivanje prekida usluge relaja. Napada\u010d mo\u017ee stvoriti lance s identifikatorima koji uzrokuju kolizije u hash funkciji, \u010dija obrada dovodi do velike optere\u0107enosti CPU-a.\n<li class=\"l\"> CVE-2021-34548 \u2014 relaj je mogao izvr\u0161iti spoofing \u0107elija RELAY_END i RELAY_RESOLVED u napola zatvorenim tokovima, \u0161to je omogu\u0107ilo zavr\u0161etak toka koji je stvoren bez sudjelovanja tog relaja.\n<li class=\"l\"> TROVE-2021-004 \u2014 dodane su dodatne provjere pogre\u0161aka pri pristupu generatoru slu\u010dajnih brojeva OpenSSL (s pozivanjem po defaultu implementacije RNG u OpenSSL sli\u010dne pogre\u0161ke se ne manifestiraju).                <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55327\">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 \u0432\u044b\u043f\u0443\u0441\u043a \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Tor 0.4.6.5, \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\u0435\u0440\u0441\u0438\u044f Tor 0.4.6.5 \u043f\u0440\u0438\u0437\u043d\u0430\u043d\u0430 \u043f\u0435\u0440\u0432\u044b\u043c \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u043c \u0432\u0435\u0442\u043a\u0438 0.4.6, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0430\u0441\u044c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u043f\u044f\u0442\u044c \u043c\u0435\u0441\u044f\u0446\u0435\u0432. \u0412\u0435\u0442\u043a\u0430 0.4.6 \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0442\u044c\u0441\u044f \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u0448\u0442\u0430\u0442\u043d\u043e\u0433\u043e \u0446\u0438\u043a\u043b\u0430 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f &#8212; \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0451\u043d \u0447\u0435\u0440\u0435\u0437 9 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0438\u043b\u0438 \u0447\u0435\u0440\u0435\u0437 3 \u043c\u0435\u0441\u044f\u0446\u0430 \u043f\u043e\u0441\u043b\u0435 \u0440\u0435\u043b\u0438\u0437\u0430 \u0432\u0435\u0442\u043a\u0438 0.4.7.x. \u0414\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0446\u0438\u043a\u043b \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 (LTS) [&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-100517","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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Verzija Tor 0.4.6.5 priznaje se prvim stabilnim izdanjem grane 0.4.6, koja se razvijala posljednjih pet mjeseci.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-novoj-stabilnoj-vetki-tor-0-4-6","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u043d\u043e\u0432\u043e\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 Tor 0.4.6 | ProHoster","og:description":"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d 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