{"id":105214,"date":"2022-09-29T15:36:37","date_gmt":"2022-09-29T13:36:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kriticheskie-uyazvimosti-komprometiruyushhie-skvoznoe-shifrovanie-vo-mnogih-matrix-klientah"},"modified":"2022-09-29T15:36:37","modified_gmt":"2022-09-29T13:36:37","slug":"kriticheskie-uyazvimosti-komprometiruyushhie-skvoznoe-shifrovanie-vo-mnogih-matrix-klientah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/kriticheskie-uyazvimosti-komprometiruyushhie-skvoznoe-shifrovanie-vo-mnogih-matrix-klientah","title":{"rendered":"Kriitilised haavatavused, mis ohustavad l\u00f5puni kr\u00fcpteerimist paljudes Matrixi klientides","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Decentraliseeritud suhtlusplatvormi Matrix arendajad teatasid kriitiliste haavatavuste tuvastamisest matrix-js-sdk, matrix-ios-sdk ja matrix-android-sdk2 raamatukogudes, mis v\u00f5imaldavad serveriadministraatoritel esineda teiste kasutajatena ja lugeda l\u00f5pp-punkti kr\u00fcpteeritud (E2EE) vestlusi. Haavatavused tulenevad vigadest Matrix protokolli erinevates rakendustes ja ei ole protokolli endaga seotud probleemid. Praegu on projekt v\u00e4lja andnud uuendused probleemsete SDK-de ja nende alusel loodud kliendirakenduste jaoks.    <\/p>\n<p>Eduka r\u00fcnnaku toimumiseks on vajalik juurdep\u00e4\u00e4s kurjategijate kontrollitavale koduserverile <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serverile\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2922\">serverile<\/a> (homeserver &#8212; \u0441\u0435\u0440\u0432\u0435\u0440 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u0438 \u0443\u0447\u0451\u0442\u043d\u044b\u0445 \u0437\u0430\u043f\u0438\u0441\u0435\u0439 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432). \u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u0441\u043a\u0432\u043e\u0437\u043d\u043e\u0433\u043e \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u043d\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0443 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-los-angeles\/\"   title=\"serverile\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3857\">serverile<\/a> kuuluda vestlusesse, kuid tuvastatud haavatavused v\u00f5imaldavad selle kaitse m\u00f6\u00f6da hiilida. Probleemid m\u00f5jutavad peamist Matrix-kliendi Element (endine Riot) Web, lauaarvutite s\u00fcsteemide, iOS-i ja Androidi jaoks, samuti kolmandate osapoolte klientrakendusi, sealhulgas Cinny, Beeper, SchildiChat, Circuli ja Synod.im. Haavatavused ei esine teekides matrix-rust-sdk, hydrogen-sdk, Matrix Dart SDK, mautrix-python, mautrix-go ja matrix-nio, samuti rakendustes Hydrogen, ElementX, Nheko, FluffyChat, Syphon, Timmy, Gomuks ja Pantalaimon.      <\/p>\n<p>Toodud on kolm peamist r\u00fcnnakuskeemide stsenaariumi:  <\/p>\n<ul>\n<li class=\"l\"> Matrix-serveri administraator v\u00f5ib rikkuda emoji p\u00f5hjalikku autentimist (SAS, Short Authentication Strings), kasutades ristallkirju ja esineda teise kasutajana. Probleem tuleneb haavatavusest (CVE-2022-39250) matrix-js-sdk koodis, mis on seotud seadmete identifikaatorite ja ristallkirjade v\u00f5tmete segamisega.\n<li class=\"l\"> Serveri t\u00f6\u00f6d kontrolliv r\u00fcndaja v\u00f5ib vale saatja, kellele v\u00f5idakse usaldada, ja edastada vale v\u00f5tme, et j\u00e4\u00e4dvustada s\u00f5numeid teistelt kasutajatelt. Probleem tuleneb haavatavusest matrix-js-sdk (CVE-2022-39251), matrix-ios-sdk (CVE-2022-39255) ja matrix-android-sdk2 (CVE-2022-39248), mis viis selleni, et klient oli valeandmete t\u00f5ttu mitte\u00f5igesti vastuv\u00f5tmas seadmetele adresseeritud s\u00f5numeid, mis on kr\u00fcpteeritud Megolm protokolli abil, mitte Olm'i abil, omistades s\u00f5numid Megolm saatjale, mitte tegelikule saatjale.\n<li class=\"l\"> Kasutades eelnevalt mainitud haavatavusi, v\u00f5ib serveri administraator lisada ka vale varuv\u00f5tme kasutajakontole, et hankida v\u00f5tmeid, mida kasutatakse s\u00f5numite kr\u00fcpteerimiseks.    <\/ul>\n<p>\u0412\u044b\u044f\u0432\u0438\u0432\u0448\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u043e\u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u0430\u0442\u0430\u043a\u0438, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0438\u0435 \u043a \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0435\u0433\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0432 \u0447\u0430\u0442 \u0438\u043b\u0438 \u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u0438\u044f  \u0447\u0443\u0436\u043e\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u043a \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e. \u0410\u0442\u0430\u043a\u0438 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u044b \u043d\u0430 \u0442\u043e\u043c, \u0447\u0442\u043e \u0441\u043b\u0443\u0436\u0435\u0431\u043d\u044b\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u0434\u043b\u044f \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0432 \u0447\u0430\u0442, \u043d\u0435 \u043f\u0440\u0438\u0432\u044f\u0437\u044b\u0432\u0430\u044e\u0442\u0441\u044f \u043a \u043a\u043b\u044e\u0447\u0430\u043c \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044f \u0447\u0430\u0442\u0430 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0441\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0430. \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Matrix \u043e\u0442\u043d\u0435\u0441\u043b\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043a \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u043d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445, \u0442\u0430\u043a \u043a\u0430\u043a \u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0435 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u043d\u0435 \u043e\u0441\u0442\u0430\u043d\u0443\u0442\u0441\u044f \u043d\u0435\u0437\u0430\u043c\u0435\u0442\u043d\u044b\u043c\u0438 &#8212; \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u043e\u043d \u043e\u0442\u043e\u0431\u0440\u0430\u0437\u0438\u0442\u0441\u044f \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0447\u0430\u0442\u0430, \u0430 \u043f\u0440\u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0432\u0435\u0434\u0435\u043d\u043e \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435, \u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u043c\u0435\u0447\u0435\u043d\u043e \u043a\u0430\u043a \u043d\u0435\u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u043d\u043e\u0435 (\u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u0441\u0440\u0430\u0437\u0443 \u043f\u043e\u0441\u043b\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043e\u0434\u0441\u0442\u0430\u0432\u043d\u043e\u043c\u0443 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0443 \u043d\u0430\u0447\u043d\u0443\u0442 \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0442\u044c\u0441\u044f \u043e\u0431\u0449\u0438\u0435 \u043a\u043b\u044e\u0447\u0438, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u0434\u043b\u044f \u0440\u0430\u0441\u0448\u0438\u0444\u0440\u043e\u0432\u043a\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439).<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57844\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043c\u0443\u043d\u0438\u043a\u0430\u0446\u0438\u0439 Matrix \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0434\u0438\u043b\u0438 \u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u0445 matrix-js-sdk, matrix-ios-sdk \u0438 matrix-android-sdk2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432 \u0432\u044b\u0434\u0430\u0432\u0430\u0442\u044c \u0441\u0435\u0431\u044f \u0437\u0430 \u0434\u0440\u0443\u0433\u0438\u0445 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438 \u0447\u0438\u0442\u0430\u0442\u044c \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u0447\u0430\u0442\u0430\u0445 \u0441\u043e \u0441\u043a\u0432\u043e\u0437\u043d\u044b\u043c \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c (E2EE). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u044b\u0437\u0432\u0430\u043d\u044b \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u0432 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[&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-105214","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043c\u0443\u043d\u0438\u043a\u0430\u0446\u0438\u0439 Matrix \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0434\u0438\u043b\u0438 \u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0438 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Need haavatavused on p\u00f5hjustatud vigadest Matrix protokolli eri rakendustes, mitte protokolli enda probleemidest. 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