{"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\/it\/blog\/novosti-interneta\/vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni","title":{"rendered":"Possibilit\u00e0 di registrare domini phishing con simboli unicode simili nel nome","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I ricercatori della societ\u00e0 Soluble <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soluble.ai\/blog\/public-disclosure-emoji-to-zero-day\">hanno identificato<\/a><\/noindex> un nuovo metodo di registrazione dei domini con <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9E%D0%BC%D0%BE%D0%B3%D0%BB%D0%B8%D1%84\">ominofoni<\/a><\/noindex>, visivamente simili ad altri domini, ma che si differenziano effettivamente a causa della presenza di simboli con significati diversi. Tali domini internazionalizzati (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/IDN\">IDN<\/a><\/noindex>) possono inizialmente non differire dai domini di aziende e servizi noti, il che consente di utilizzarli per phishing, incluso il rilascio di certificati TLS validi per essi.<\/p>\n<p>La classica sostituzione tramite un dominio IDN simile \u00e8 stata a lungo bloccata dai browser e dai registrar, grazie al divieto di mescolare simboli di alfabeti diversi. Ad esempio, non \u00e8 possibile creare un dominio sostitutivo a apple.com (&#171;xn--pple-43d.com&#187;) sostituendo la lettera latina &#171;a&#187; (U+0061) con la \u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0447\u0435\u0441\u043a\u0430\u044f &#171;\u0430&#187; (U+0430), poich\u00e9 non \u00e8 consentito mescolare lettere di diversi alfabeti in un dominio. Nel 2017 \u00e8 stato <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=46394\">trovato<\/a><\/noindex> un modo per aggirare tale protezione utilizzando nel dominio solo simboli unicode, senza l'uso del latino (ad esempio, mediante simboli di lingue con caratteri simili a quelli latini).<\/p>\n<p>\u00c8 stato trovato un ulteriore metodo per eludere la protezione, basato sul fatto che i registrar bloccano la mescolanza di caratteri latini e Unicode, ma se i caratteri Unicode specificati nel dominio appartengono al gruppo dei caratteri latini, tale mescolanza \u00e8 consentita, poich\u00e9 i caratteri appartengono a un unico alfabeto. Il problema \u00e8 che nell'estensione <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/IPA_Extensions\">Unicode Latin IPA<\/a><\/noindex> ci sono omoglif\u00ec, simili nella scrittura ad altri caratteri dell'alfabeto latino:<br \/>\nil simbolo &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Latin_alpha\">&#593;<\/a><\/noindex>&#187; ricorda &#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=\"Possibilit\u00e0 di registrare domini phishing con simboli unicode simili nel nome\" src=\"\/wp-content\/uploads\/2020\/03\/4c7ab1abba84d76486b24d2c9e34017e.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>La possibilit\u00e0 di registrare domini in cui il latino \u00e8 mescolato con i caratteri Unicode specificati \u00e8 stata evidenziata dal registrar Verisign (non sono stati controllati altri registrar), e sottodomini sono stati creati nei servizi Amazon, Google, Wasabi e DigitalOcean. Il problema \u00e8 stato scoperto nel novembre dello scorso anno e, nonostante le notifiche inviate, dopo tre mesi \u00e8 stato risolto all'ultimo momento solo in Amazon e Verisign.<\/p>\n<p>Durante l'esperimento, i ricercatori hanno speso 400 dollari per registrare i seguenti domini in 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>I ricercatori hanno anche lanciato <noindex><a rel=\"nofollow\" href=\"https:\/\/homoglyphs.storage.googleapis.com\">un servizio online<\/a><\/noindex> per controllare i propri domini alla ricerca di possibili varianti alternative con omoglifos, comprese le verifiche di domini gi\u00e0 registrati e certificati TLS con nomi simili. Per quanto riguarda i certificati HTTPS, sono stati esaminati 300 domini con omoglifos attraverso i log di Certificate Transparency, dei quali 15 hanno mostrato la generazione di certificati. <\/p>\n<p>I browser attuali Chrome e Firefox visualizzano domini simili nella barra degli indirizzi con la notazione con prefisso &#171;xn--&#171;, tuttavia nei link i domini appaiono senza trasformazione, il che pu\u00f2 essere utilizzato per inserire pagine di risorse dannose o link, sotto le spoglie di download da siti legittimi. Ad esempio, su uno dei domini identificati con omoglyphs \u00e8 stata registrata la diffusione di una variante malevola della libreria jQuery.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <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-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - 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 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