{"id":72851,"date":"2020-03-05T02:41:57","date_gmt":"2020-03-04T23:41:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni"},"modified":"2020-03-05T02:41:57","modified_gmt":"2020-03-04T23:41:57","slug":"vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni","title":{"rendered":"Muligheden for at registrere phishing-dom\u00e6ner med lignende unicode-tegn i navnet","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Forskere fra Soluble <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soluble.ai\/blog\/public-disclosure-emoji-to-zero-day\">har identificeret<\/a><\/noindex> en ny m\u00e5de at registrere dom\u00e6ner med <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9E%D0%BC%D0%BE%D0%B3%D0%BB%D0%B8%D1%84\">homoglyphs<\/a><\/noindex>, der ligner andre dom\u00e6ner, men faktisk adskiller sig p\u00e5 grund af tilstedev\u00e6relsen af tegn med en anden betydning. S\u00e5danne internationaliserede dom\u00e6ner (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/IDN\">IDN<\/a><\/noindex>) kan ved f\u00f8rste \u00f8jekast ikke skelnes fra dom\u00e6ner til kendte virksomheder og tjenester, hvilket muligg\u00f8r brugen af dem til phishing, herunder modtagelse af gyldige TLS-certifikater for dem.<\/p>\n<p>Den klassiske spoofing via en visuelt lignende IDN-dom\u00e6ne er l\u00e6nge blevet blokeret af browsere og registrarer, takket v\u00e6re forbuddet mod blanding af tegn fra forskellige alfabeter. For eksempel kan en falsk dom\u00e6ne apple.com (&#171;xn--pple-43d.com&#187;) ikke oprettes ved at erstatte den latinske &#171;a&#187; (U+0061) med den kyrilliske &#171;\u0430&#187; (U+0430), da blanding af bogstaver fra forskellige alfabeter i dom\u00e6net ikke er tilladt. I 2017 blev der <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=46394\">found<\/a><\/noindex> fundet en metode til at omg\u00e5 denne beskyttelse ved kun at bruge unicode-tegn i dom\u00e6net uden at bruge latinske tegn (f.eks. ved hj\u00e6lp af tegn fra sprog med lignende symboler til latinske).<\/p>\n<p>Nu er der fundet endnu en metode til at omg\u00e5 beskyttelsen, baseret p\u00e5 at registratorer blokerer blanding af latinske og Unicode-tegn, men hvis de angivne Unicode-tegn i dom\u00e6net tilh\u00f8rer gruppen af latinske tegn, er s\u00e5dan blanding tilladt, da tegnene tilh\u00f8rer det samme alfabet. Problemet er, at der i udvidelsen <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/IPA_Extensions\">Unicode Latin IPA<\/a><\/noindex> findes homoglyphs, der ligner andre tegn i det latinske alfabet:<br \/>\nsymbolet &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Latin_alpha\">&#593;<\/a><\/noindex>&#187; minder om &#171;a&#187;, &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Voiced_velar_stop\">&#609;<\/a><\/noindex>&#187; &#8212; &#171;g&#187;, &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Latin_iota\">&#617;<\/a><\/noindex>&#187; &#8212; &#171;l&#187;. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.soluble.ai\/hs-fs\/hubfs\/homoglyph4.jpeg?width=888&#038;name=homoglyph4.jpeg\"><img decoding=\"async\" alt=\"Muligheden for at registrere phishing-dom\u00e6ner med lignende unicode-tegn i navnet\" src=\"\/wp-content\/uploads\/2020\/03\/4c7ab1abba84d76486b24d2c9e34017e.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Muligheden for at registrere dom\u00e6ner, hvor latinske tegn blandes med de angivne Unicode-tegn, er blevet identificeret hos registratoren Verisign (andre registratorer er ikke blevet tjekket), og underdom\u00e6ner er blevet oprettet i tjenester som Amazon, Google, Wasabi og DigitalOcean. Problemet blev opdaget i november sidste \u00e5r, og p\u00e5 trods af de sendte meddelelser blev det f\u00f8rst i sidste \u00f8jeblik l\u00f8st i Amazon og Verisign tre m\u00e5neder senere.<\/p>\n<p>Under eksperimentet har forskerne brugt 400 dollars p\u00e5 at registrere f\u00f8lgende dom\u00e6ner hos Verisign:<\/p>\n<ul>\n<li> am&#593;zon.com\n<li> ch&#593;se.com\n<li> s&#593;lesforce.com\n<li> &#609;m&#593;il.com\n<li> &#593;pp&#617;e.com\n<li> eb&#593;y.com\n<li> &#609;static.com\n<li> ste&#593;mpowered.com\n<li> the&#609;uardian.com\n<li> thever&#609;e.com\n<li> washin&#609;tonpost.com\n<li> p&#593;yp&#593;&#617;.com\n<li> w&#593;lm&#593;rt.com\n<li> w&#593;s&#593;bisys.com\n<li> y&#593;hoo.com\n<li> c&#617;oudf&#617;are.com\n<li> de&#617;&#617;.com\n<li> gm&#593;i&#617;.com\n<li> goo&#609;leapis.com\n<li> huffin&#609;tonpost.com\n<li> insta&#609;ram.com\n<li> microsofton&#617;ine.com\n<li> &#593;m&#593;zon&#593;ws.com\n<li> &#593;ndroid.com\n<li> netf&#617;ix.com\n<li> nvidi&#593;.com\n<li> &#609;oog&#617;e.com\n<\/ul>\n<p>Forskere har ogs\u00e5 lanceret <noindex><a rel=\"nofollow\" href=\"https:\/\/homoglyphs.storage.googleapis.com\">en online service<\/a><\/noindex> til at kontrollere dine dom\u00e6ner for mulige alternative versioner med homoglyphs, herunder kontrollen af allerede registrerede dom\u00e6ner og TLS-certifikater med lignende navne. Hvad ang\u00e5r HTTPS-certifikater, blev 300 dom\u00e6ner med homoglyphs kontrolleret gennem logs fra Certificate Transparency, hvoraf 15 havde genereret certifikater. <\/p>\n<p>De aktuelle browsere Chrome og Firefox viser s\u00e5danne dom\u00e6ner i adressefeltet i notation med pr\u00e6fikset &#171;xn--&#171;, men i links ser dom\u00e6nerne ud uden transformation, hvilket kan bruges til at inds\u00e6tte p\u00e5 sider med skadelige ressourcer eller links, der er skjult som om de blev hentet fra legitime sider. For eksempel blev der p\u00e5 et af de identificerede dom\u00e6ner med homografer registreret distribution af en skadelig variant af jQuery-biblioteket.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52479\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Soluble \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0441 \u043e\u043c\u043e\u0433\u043b\u0438\u0444\u0430\u043c\u0438, \u0432\u043d\u0435\u0448\u043d\u0435 \u043f\u043e\u0445\u043e\u0436\u0438\u043c\u0438 \u043d\u0430 \u0434\u0440\u0443\u0433\u0438\u0435 \u0434\u043e\u043c\u0435\u043d\u044b, \u043d\u043e \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0449\u0438\u0435\u0441\u044f \u0438\u0437-\u0437\u0430 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u0441 \u0438\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c. \u041f\u043e\u0434\u043e\u0431\u043d\u044b\u0435 \u0438\u043d\u0442\u0435\u0440\u043d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0434\u043e\u043c\u0435\u043d\u044b (IDN) \u043c\u043e\u0433\u0443\u0442 \u043d\u0430 \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043d\u0435 \u043e\u0442\u043b\u0438\u0447\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 \u0438 \u0441\u0435\u0440\u0432\u0438\u0441\u043e\u0432, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0438\u0445 \u0434\u043b\u044f \u0444\u0438\u0448\u0438\u043d\u0433\u0430, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0447\u0430\u044f \u0434\u043b\u044f \u043d\u0438\u0445 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u0435 TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":72852,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-72851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Soluble \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0441\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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