{"id":121455,"date":"2025-01-23T15:46:01","date_gmt":"2025-01-23T13:46:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/iz-za-opechatki-v-nastrojkah-atakuyushhie-mogli-podmenit-dns-server-mastercard"},"modified":"2026-02-04T17:53:52","modified_gmt":"2026-02-04T15:53:52","slug":"iz-za-opechatki-v-nastrojkah-atakuyushhie-mogli-podmenit-dns-server-mastercard","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/iz-za-opechatki-v-nastrojkah-atakuyushhie-mogli-podmenit-dns-server-mastercard","title":{"rendered":"A causa di un errore di battitura nelle impostazioni, gli aggressori potrebbero aver sostituito il server DNS di MasterCard.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Un ricercatore di sicurezza dell'azienda Seralys ha identificato la possibilit\u00e0 di sostituzione del server DNS per il dominio mastercard.com, utilizzato nell'infrastruttura del sistema di pagamento MasterCard. Nelle impostazioni della zona del dominio mastercard.com era presente un errore di battitura dal giugno 2020: nella lista dei server DNS che gestiscono la zona era stato indicato il host 'a22-65.akam.ne' anzich\u00e9 'a22-65.akam.net' (servizio DNS di Akamai). La zona radice '.ne' \u00e8 assegnata alla Repubblica del Niger e il dominio 'akam.ne' risultava quindi disponibile per la vendita.     <\/p>\n<p>Pertanto, per quattro anni e mezzo, chiunque potesse <a href=\"https:\/\/prohoster.info\/it\/domain\/\"  data-wpil-monitor-id=\"315\">acquistare il dominio<\/a> 'akam.ne', creare l'host 'a22-65.akam.ne', implementare su di esso un server DNS, impostare una propria versione della zona DNS di mastercard.com e reindirizzare qualsiasi sottodominio di mastercard.com sul proprio server. DNSSEC non \u00e8 stato utilizzato per mastercard.com. Poich\u00e9 l'errore \u00e8 stato commesso nel nome di uno dei cinque server DNS, in caso di attacco riuscito sarebbe stato possibile ottenere il controllo di almeno 1\/5 del traffico. La copertura potrebbe aumentarne impostando un grande TTL (Time To Live) per la zona compromessa, il che porterebbe a una maggiore durata delle registrazioni nella cache dei risolutori pubblici, ad esempio quelli supportati da aziende come Cloudflare (1.1.1.1) e Google (8.8.8.8).     <center><img decoding=\"async\" alt=\"A causa di un errore di battitura nelle impostazioni, gli aggressori potrebbero aver sostituito il server DNS di MasterCard.\" src=\"\/wp-content\/uploads\/2025\/01\/daf6f84be56b65d7827e674cd050811d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>          <\/p>\n<p>Oltre alla cattura del traffico dagli host esistenti, sarebbe stato possibile condurre un attacco meno evidente e utilizzare un sottodominio inizialmente assente per organizzare un attacco di phishing, ad esempio, creando l'host 'redemtion.mastercard.com' e utilizzandolo nello spam al posto del legittimo punto d'ingresso 'redemption.mastercard.com'. Tra l'altro, avendo il controllo su uno dei server DNS che gestiscono il dominio mastercard.com, sarebbe stato possibile ottenere <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/ssl-sertifikat\/\"   title=\"un certificato TLS\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"942\">un certificato TLS<\/a> servizi che consentono la verifica della propriet\u00e0 del dominio tramite Web o DNS, come Let's Encrypt. Tra gli scenari di attacco possibili si menziona anche la creazione di un server di posta falso per intercettare la corrispondenza dall'email nome@mastercard.com e organizzare la cattura dei dati di autenticazione dai computer dei dipendenti che utilizzano Windows.        <\/p>\n<p>Il ricercatore che ha evidenziato i problemi ha acquistato il dominio 'akam.ne' per $300 e ha avviato su di esso un DNS sniffer per valutare il volume di traffico. L'analisi delle richieste ricevute ha mostrato che il caso di MasterCard non \u00e8 l'unico e ci sono altre zone di dominio nella cui lista dei server DNS \u00e8 indicato il host 'akam.ne' invece di 'akam.net'. Inoltre, \u00e8 emerso che tra il 2015 e il 2018 il dominio 'akam.ne' \u00e8 stato registrato e probabilmente utilizzato per condurre attacchi. L'ipotesi di attacchi \u00e8 formulata poich\u00e9 il precedente proprietario di 'akam.ne' aveva registrato anche il dominio 'awsdns-06.ne', che \u00e8 stilizzato come un server DNS 'awsdns-06.net'. L'inefficienza di uno dei server DNS con un errore nel nome pu\u00f2 rimanere a lungo inosservata dagli amministratori, poich\u00e9 l'affidabilit\u00e0 \u00e8 garantita dalla presenza di pi\u00f9 server DNS.      <\/p>\n<p>All'inizio, MasterCard ha ignorato il messaggio riguardante il problema, ma dopo che il giornalista Brian Krebs l'ha contattata, ha riconosciuto e corretto l'errore, affermando che non rappresentava una minaccia per l'infrastruttura. Successivamente, tramite il servizio Bugcrowd, che consente di ricevere compensi per la scoperta di vulnerabilit\u00e0, \u00e8 stata inoltrata al ricercatore una richiesta di MasterCard per rimuovere la nota pubblicata sull'incidente.     <\/p>\n<p>In risposta, il ricercatore ha affermato che, sebbene avesse un account sul servizio Bugcrowd, non aveva inviato alcuna richiesta di ricompensa, ma aveva avvisato direttamente l'azienda MasterCard del problema. La nota \u00e8 stata pubblicata per attirare l'attenzione sul problema dopo che non c'era pi\u00f9 alcuna minaccia per la MasterCard e il dominio 'akam.ne' apparteneva al ricercatore. In definitiva, l'azienda MasterCard non solo non ha compensato i $300 spesi per il dominio, ma non ha nemmeno ringraziato verbalmente il ricercatore.        <\/p>\n<p>Per quanto riguarda l'affermazione che l'errore non ha creato rischi aggiuntivi, il ricercatore ha fornito statistiche sulle richieste DNS ricevute, nelle quali figurano i domini *.az.mastercard.com, che indicano componenti operativi dell'infrastruttura MasterCard ospitati nel servizio cloud di Microsoft Azure. La compromissione di tali componenti rappresentava chiaramente una minaccia critica per la sicurezza.     <center><img decoding=\"async\" alt=\"A causa di un errore di battitura nelle impostazioni, gli aggressori potrebbero aver sostituito il server DNS di MasterCard.\" src=\"\/wp-content\/uploads\/2025\/01\/5c278c0a8e31029bea4348062a2fcaaf.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62602\">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\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Seralys \u0432\u044b\u044f\u0432\u0438\u043b \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0434\u043c\u0435\u043d\u044b DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0434\u043e\u043c\u0435\u043d\u0430 mastercard.com, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0432 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u043f\u043b\u0430\u0442\u0451\u0436\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b MasterCard. \u0412 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u0437\u043e\u043d\u044b mastercard.com \u0441 \u0438\u044e\u043d\u044f 2020 \u0433\u043e\u0434\u0430 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u043b\u0430 \u043e\u043f\u0435\u0447\u0430\u0442\u043a\u0430 &#8212; \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0437\u043e\u043d\u0443 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432 \u0432\u043c\u0435\u0441\u0442\u043e \u0445\u043e\u0441\u0442\u0430 &#171;a22-65.akam.net&#187; (DNS-\u0441\u043b\u0443\u0436\u0431\u0430 Akamai) \u0431\u044b\u043b \u0443\u043a\u0430\u0437\u0430\u043d \u0445\u043e\u0441\u0442 &#171;a22-65.akam.ne&#187;. \u041a\u043e\u0440\u043d\u0435\u0432\u0430\u044f \u0437\u043e\u043d\u0430 &#171;.ne&#187; \u0437\u0430\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u0430 \u0437\u0430 \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0439 \u041d\u0438\u0433\u0435\u0440 \u0438 \u0434\u043e\u043c\u0435\u043d &#171;akam.ne&#187; \u043e\u043a\u0430\u0437\u0430\u043b\u0441\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":121456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-121455","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 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Seralys \u0432\u044b\u044f\u0432\u0438\u043b \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0434\u043c\u0435\u043d\u044b DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u0434\u043e\u043c\u0435\u043d\u0430 mastercard.com, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0432 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u043f\u043b\u0430\u0442\u0451\u0436\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b MasterCard. \u0412 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u0437\u043e\u043d\u044b mastercard.com \u0441 \u0438\u044e\u043d\u044f 2020 \u0433\u043e\u0434\u0430 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u043b\u0430 \u043e\u043f\u0435\u0447\u0430\u0442\u043a\u0430 - \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0437\u043e\u043d\u0443 DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432 \u0432\u043c\u0435\u0441\u0442\u043e \u0445\u043e\u0441\u0442\u0430 &quot;a22-65.akam.net&quot; 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(DNS-\u0441\u043b\u0443\u0436\u0431\u0430 Akamai) \u0431\u044b\u043b \u0443\u043a\u0430\u0437\u0430\u043d \u0445\u043e\u0441\u0442 &quot;a22-65.akam.ne&quot;. \u041a\u043e\u0440\u043d\u0435\u0432\u0430\u044f \u0437\u043e\u043d\u0430 &quot;.ne&quot; \u0437\u0430\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u0430 \u0437\u0430 \u0420\u0435\u0441\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0439 \u041d\u0438\u0433\u0435\u0440 \u0438 \u0434\u043e\u043c\u0435\u043d &quot;akam.ne&quot; \u043e\u043a\u0430\u0437\u0430\u043b\u0441\u044f\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/iz-za-opechatki-v-nastrojkah-atakuyushhie-mogli-podmenit-dns-server-mastercard\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2025-01-23T13:46:03+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-02-04T15:53:52+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47A causa di un errore di battitura nelle impostazioni, gli attaccanti potevano sostituire il server DNS di MasterCard | ProHoster","description":"Un ricercatore di sicurezza della societ\u00e0 Seralys ha rilevato la possibilit\u00e0 di sostituire il server DNS per il dominio mastercard.com, utilizzato nell'infrastruttura del sistema di pagamento MasterCard. Nelle impostazioni della zona di dominio mastercard.com, fin da giugno 2020, era presente un errore di battitura: nell'elenco dei server DNS a servizio della zona, invece dell'host \"a22-65.akam.net\" (servizio DNS Akamai), era stato indicato l'host \"a22-65.akam.ne\". 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