{"id":85705,"date":"2020-06-18T13:43:02","date_gmt":"2020-06-18T11:43:02","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/utechka-poiskovyh-klyuchej-cherez-dns-v-firefox-i-chrome"},"modified":"2020-06-18T13:43:02","modified_gmt":"2020-06-18T11:43:02","slug":"utechka-poiskovyh-klyuchej-cherez-dns-v-firefox-i-chrome","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/utechka-poiskovyh-klyuchej-cherez-dns-v-firefox-i-chrome","title":{"rendered":"Otsinguv\u00f5tmete lekkeprobleem DNS kaudu Firefoxis ja Chromes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Firefoxis ja Chrome'is tuvastatud<\/a><\/noindex> aalane t\u00f6\u00f6tlemise erip\u00e4ra aadressiribale sisestatud otsingup\u00e4ringute osas, mis kaasa<\/a><\/noindex> toob kaasa andmete lekke kaudu pakkuja DNS-serverisse. Probleem seisneb selles, et kui otsingup\u00e4ring koosneb ainult \u00fchest s\u00f5nast, proovib brauser esmalt DNS'is m\u00e4\u00e4rata, kas sellise nimega hosti on olemas, eeldades, et kasutaja proovib avada alamdomeeni, ning alles seej\u00e4rel suunab p\u00e4ringu otsingumootorisse. Nii saab DNS-serveri omanik, mis on kasutaja seadistustes m\u00e4\u00e4ratud, teavet \u00fche s\u00f5na otsingup\u00e4ringute kohta, mis loetakse privaatsuse rikkumiseks.<\/p>\n

Probleem ilmneb nii teenusepakkujate DNS-serverite kui ka \u201eDNS over HTTPS\u201c (DoH) teenuste kasutamisel, kui DNS-lisand on seadistatud (seatud vaikimisi DHCP kaudu saadud parameetrite puhul). Peamine probleem on see, et isegi kui DoH on sisse l\u00fclitatud, saadetakse p\u00e4ringud ikkagi m\u00e4\u00e4ratud s\u00fcsteemi DNS-teenusepakkuja serverisse.
\nOluline on, et nimede lahendamine toimub ainult siis, kui saadetakse otsingup\u00e4ringud, mis koosnevad \u00fchest s\u00f5nast. Kui on m\u00e4\u00e4ratud mitu s\u00f5na, ei p\u00f6\u00f6rduta DNS-i poole. <\/p>\n

\"Otsinguv\u00f5tmete<\/a><\/noindex><\/center><\/p>\n

Probleem on kinnitatud Firefoxis ja Chrome'is ning v\u00f5ib m\u00f5jutada ka teisi brauserite. Firefoxi arendajad on tunnistanud probleemi olemasolu ja kavatsevad<\/a><\/noindex> pakuvad lahendust versioonis Firefox 79. Eelk\u00f5ige saab otsingup\u00e4ringute t\u00f6\u00f6tlemise k\u00e4itumist hallata seadetes about:config lisatud<\/a><\/noindex> seadistus<\/a><\/noindex> \u201ebrowser.urlbar.dnsResolveSingleWordsAfterSearch\u201c, mille seadistamine v\u00e4\u00e4rtusele \u201e0\u201c blokeerib resolutsiooni, \u201e1\u201c (vaikimisi) kasutab heuristikat valikulise resolutsiooni jaoks ja \u201e2\u201c s\u00e4ilitab vana k\u00e4itumise. Heuristika on<\/a><\/noindex> DoH-i lubamise kontrollimisel, ainult \u2018localhost\u2019 salvestuse olemasolu \/etc\/hosts failis ja alamdomeeni puudumine praeguse hosti jaoks.<\/p>\n

Chrome'i arendajad lubasid<\/a><\/noindex> piirata DNS-i kaudu toimuvat lekke, kuid teate<\/a><\/noindex> sarnane probleem j\u00e4\u00e4b lahendamata alates 2015. aastast. Tor Browseris probleem ei esine.<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 Firefox \u0438 Chrome \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043d\u0430\u0431\u0440\u0430\u043d\u043d\u044b\u0445 \u0432 \u0430\u0434\u0440\u0435\u0441\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0435 \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u044b\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0443\u0442\u0435\u0447\u043a\u0435 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u0439 \u0447\u0435\u0440\u0435\u0437 DNS-\u0441\u0435\u0440\u0432\u0435\u0440 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430. \u0421\u0443\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u0435\u0441\u043b\u0438 \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u044b\u0439 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