{"id":100191,"date":"2021-05-18T22:23:32","date_gmt":"2021-05-18T20:23:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox"},"modified":"2026-02-04T17:53:51","modified_gmt":"2026-02-04T15:53:51","slug":"kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","title":{"rendered":"Ettev\u00f5te Mozilla tutvustas Firefoxi jaoks ranget saidi isoleerimise re\u017eiimi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Mozilla teatavutas, et on alustanud massilist testimist Firefoxi \u00f6iste ehituste ja beetaversioonide kaudu, mille raames arendatakse v\u00e4lja ranget saidi isoleerimise re\u017eiimi, mis on osa Fissioni projektist. Re\u017eiim laiendab mitme protsessi arhitektuuri kasutamist \u2014 iga saidi jaoks luuakse eraldi protsess, mitte ei kasutata fikseeritud protsesside r\u00fchma. Fissioni re\u017eiimi sissel\u00fclitamist kontrollitakse muutuja kaudu \u201efission.autostart=true\u201d lehelt about:config v\u00f5i lehelt about:preferences#experimental. <\/p>\n

Tuletame meelde, et enne rakendatud Firefoxi mitme protsessori mudel eeldas t\u00f6\u00f6tlemisprotsesside gruppide k\u00e4ivitamist: vaikimisi 8 peamist protsessi sisu t\u00f6\u00f6tlemiseks, 2 t\u00e4iendavat privileegita protsessi veebisisu jaoks ja 4 abiprotsessi lisandite, GPU interaktsioonide, v\u00f5rguoperatsioonide ja multimeedia andmete dekodeerimise jaoks. Vahekaartide jagamine protsesside vahel toimus juhuslikult, n\u00e4iteks v\u00f5is \u00fches protsessis t\u00f6\u00f6delda nii panganduse saiti kui ka usaldamatut kahtlast allikat. <\/p>\n

Uus re\u017eiim viib iga saidi t\u00f6\u00f6tlemise eraldi protsessi, jagades mitte vahekaartide, vaid domeenide j\u00e4rgi, mis v\u00f5imaldab t\u00e4iendavalt isoleerida v\u00e4listest skriptidest ja iframe plokkidest p\u00e4rinevat sisu. Alamsaadete eraldi t\u00f6\u00f6tlemiseks t\u00fc\u00fcpiliste teenuste jaoks, mis on seotud erinevate saitidega, kasutatakse jagamist mitte formaalsete, vaid tegelike (eTLD) domeenide alusel. \u00fclemise taseme domeenide<\/a>, mis on loetletud avaliku sufiksi nimekirjas (st saidid \u201ea.github.io\u201d ja \u201eb.github.io\u201d k\u00e4ideldakse eraldi protsessides). <\/p>\n

Range isoleerimise re\u017eiim kaitseb kolmandate kanalite r\u00fcnnakute eest, n\u00e4iteks Spectre klassi haavatavustega, mis v\u00f5ivad p\u00f5hjustada teabe leket \u00fche protsessi sees. \u00dches protsessis t\u00f6\u00f6tleva konfidentsiaalse teabe leke on v\u00f5imalik, kui m\u00f5ni usaldamatute v\u00e4liste koodide k\u00e4itamine toimub JIT mootorites ja virtuaalmasinaid<\/a>. Kontekstis veebibrauserites v\u00f5ib pahatahtlik JavaScript-kood \u00fchest saidist saada teavet paroolide, p\u00e4\u00e4sukoodide ja krediitkaardi numbbrite kohta, mis on sisestatud teisele saidile, mida t\u00f6\u00f6deldakse samas protsessis. Esialgu, et kaitsta kolmandate osapoolte r\u00fcnnakute eest, piirasid brauseriarendajad taimeri t\u00e4psust ja keelasid juurdep\u00e4\u00e4su API-le SharedArrayBuffer, kuid need meetmed ainult raskendasid ja aeglestasid r\u00fcnnaku l\u00e4biviimist (n\u00e4iteks hiljuti on pakutud meetod andmete v\u00e4ljav\u00f5tmiseks CPU vahem\u00e4lust, mis t\u00f6\u00f6tab \u00fcldse ilma JavaScriptita). <\/p>\n

Teiste rangelt isolatsiooni re\u017eiimi eelistena mainitakse m\u00e4lu fraktsioneerimise v\u00e4henemist, t\u00f5husamat m\u00e4lureturnimist ops\u00fcsteemile, pr\u00fcgikogumise ja intensiivsete arvutuste m\u00f5ju minimeerimist teiste protsesside lehtedele, koormuse jaotamise efektiivsuse suurenemist erinevatel CPU tuumadel, stabiilsuse t\u00f5usu (iframe\u2019i t\u00f6\u00f6tleva protsessi krahh ei too kaasa peamise saidi ja teiste vahelehtede alla kukkumist). <\/p>\n

Tuntud probleemide seas, mis tekivad Fissioni kasutamisel, on m\u00e4rgatav m\u00e4lutarbimise, X11 \u00fchenduste ja failide deskriptorite suurenemine suure arvu vahelehtede avamisel, samuti m\u00f5ningate laiendite toimimise h\u00e4ired, iframe\u2019i sisu kadumine printimise ja ekraanipildi salvestamise funktsioonide v\u00e4ljakutsumise ajal, dokumentide vahem\u00e4lustamise efektiivsuse langus koos iframe\u2019iga, t\u00e4idetud, kuid mitte saadetud vormide sisu kadumine seansi taastamisel p\u00e4rast krahhi.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435 about:preferences#experimental. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u0430\u044f […]<\/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-100191","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Mozilla tutvustas veebisaitide rangelt isolatsiooni re\u017eiimi Firefoxile | ProHoster","description":"Mozilla teatas, et k\u00e4ivitab laialdase testimise Firefoxi \u00f6istes kogudes ja beetaversioonides veebisaitide rangelt isolatsiooni re\u017eiimi, mis arenes projekti Fission raames.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/news\/kompaniya-mozilla-predstavila-rezhim-strogoj-izolyaczii-sajtov-dlya-firefox","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Mozilla \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0440\u0435\u0436\u0438\u043c \u0441\u0442\u0440\u043e\u0433\u043e\u0439 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 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