{"id":89993,"date":"2020-07-28T01:42:19","date_gmt":"2020-07-27T23:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb"},"modified":"2020-07-28T01:42:19","modified_gmt":"2020-07-27T23:42:19","slug":"v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb","title":{"rendered":"Durante l'attacco Meow sono state eliminate circa 4000 DB pubblici di Elasticsearch e MongoDB.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'attacco continua a guadagnare terreno &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/MayhemDayOne\/status\/1285303164116389890\">Meow<\/a><\/noindex>&#171;, durante il quale sconosciuti malintenzionati distruggono i dati nelle installazioni Elasticsearch e MongoDB pubblicamente accessibili e non protette. Sono stati segnalati casi isolati di cancellazione (in totale circa il 3% di tutte le vittime) anche per database non protetti basati su Apache Cassandra, CouchDB, Redis, Hadoop e Apache ZooKeeper. L'attacco viene eseguito tramite un bot che scorre le porte di rete standard dei DBMS. Lo studio dell'attacco su un server honeypot fasullo ha mostrato che la connessione del bot <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/MayhemDayOne\/status\/1286577695946608640\">viene effettuata<\/a><\/noindex> tramite ProtonVPN. Se il 22 luglio erano state registrate circa 1000 DB remoti, il 23 luglio il numero dei sistemi colpiti <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/MayhemDayOne\/status\/1286577695946608640\">\u00e8 aumentato<\/a><\/noindex> \u00e8 salito a circa 2500, e ieri <noindex><a rel=\"nofollow\" href=\"https:\/\/www.shodan.io\/search?query=meow+indices\">ha superato<\/a><\/noindex> ha superato i 3800, ma \u00e8 sceso oggi a 3750.<\/p>\n<p>La causa dei problemi \u00e8 l'apertura dell'accesso pubblico ai DB senza una corretta configurazione dell'autenticazione. Per errore o negligenza, il gestore delle richieste viene collegato non all'indirizzo interno 127.0.0.1 (localhost), ma a tutte le interfacce di rete, compresa quella esterna. In MongoDB, un comportamento simile \u00e8 favorito dalle impostazioni suggerite di default, mentre in Elasticsearch fino al rilascio <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50750\">6.8<\/a><\/noindex> nella versione gratuita non erano affatto supportati gli strumenti di controllo degli accessi.<\/p>\n<p>Nota <noindex><a rel=\"nofollow\" href=\"https:\/\/www.comparitech.com\/blog\/vpn-privacy\/ufo-vpn-data-exposure\/\">cronologia<\/a><\/noindex> \u00e8 il caso del provider VPN UFO, che aveva un database Elasticsearch pubblico di 894GB. Il provider si era presentato come attento alla privacy degli utenti e non registrante log. Contrariamente a quanto dichiarato, nel database esistevano log contenenti informazioni su indirizzi IP, associazione delle sessioni con il tempo, etichette sulla posizione degli utenti, informazioni sul sistema operativo e dispositivo degli utenti, liste di domini per la pubblicit\u00e0 nel traffico HTTP non protetto. Inoltre, nel DB erano presenti le password di accesso in chiaro e chiavi di sessione che consentivano di decrittografare le sessioni intercettate.<\/p>\n<p>Il provider UFO \u00e8 stato informato del problema il 1\u00b0 luglio, ma per due settimane il messaggio \u00e8 rimasto senza risposta, e il 14 luglio \u00e8 stata inviata un'altra richiesta al provider di hosting, dopo la quale il 15 luglio il DB \u00e8 stato protetto. Il 20 luglio questo DB \u00e8 riemerso pubblicamente su un altro IP. Nel giro di pochi ore quasi tutti i dati nel DB sono stati cancellati. L'analisi di questa cancellazione ha mostrato che era collegata a un attacco condotto in massa, soprannominato Meow per via dei nomi degli indici lasciati nel DB dopo la cancellazione. La ricerca tramite il servizio Shodan <noindex><a rel=\"nofollow\" href=\"https:\/\/www.shodan.io\/search?query=meow+indices\">ha dimostrato<\/a><\/noindex>, che ha visto la cancellazione di ulteriori diverse centinaia di server. Attualmente, il numero di database eliminati si avvicina a 4000.<\/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=53438\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043d\u0430\u0431\u0438\u0440\u0430\u0442\u044c \u043e\u0431\u043e\u0440\u043e\u0442\u044b \u0430\u0442\u0430\u043a\u0430 &#171;Meow&#171;, \u0432 \u0445\u043e\u0434\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0435 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0438 \u0443\u043d\u0438\u0447\u0442\u043e\u0436\u0430\u044e\u0442 \u0434\u0430\u043d\u043d\u044b\u0435 \u0432 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0445 \u043d\u0435\u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430\u0445 Elasticsearch \u0438 MongoDB. \u0415\u0434\u0438\u043d\u0438\u0447\u043d\u044b\u0435 \u0441\u043b\u0443\u0447\u0430\u0438 \u043e\u0447\u0438\u0441\u0442\u043a\u0438 (\u0432 \u0441\u0443\u043c\u043c\u0435 \u043e\u043a\u043e\u043b\u043e 3% \u043e\u0442 \u0432\u0441\u0435\u0445 \u0436\u0435\u0440\u0442\u0432) \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u0444\u0438\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0434\u043b\u044f \u043d\u0435\u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0445 \u0411\u0414 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 Apache Cassandra, CouchDB, Redis, Hadoop \u0438 Apache ZooKeeper. \u0410\u0442\u0430\u043a\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u0431\u043e\u0442\u0430, \u043f\u0435\u0440\u0435\u0431\u0438\u0440\u0430\u044e\u0449\u0435\u0433\u043e \u0442\u0438\u043f\u043e\u0432\u044b\u0435 \u0441\u0435\u0442\u0435\u0432\u044b\u0435 \u043f\u043e\u0440\u0442\u044b \u0421\u0423\u0411\u0414. \u0418\u0437\u0443\u0447\u0435\u043d\u0438\u0435 [&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-89993","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043d\u0430\u0431\u0438\u0440\u0430\u0442\u044c \u043e\u0431\u043e\u0440\u043e\u0442\u044b \u0430\u0442\u0430\u043a\u0430 &quot;Meow&quot;, \u0432 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