{"id":84555,"date":"2020-06-09T01:41:56","date_gmt":"2020-06-08T23:41:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-ublock-origin-dobavlena-blokirovka-skriptov-dlya-skanirovaniya-setevyh-portov"},"modified":"2020-06-09T01:41:56","modified_gmt":"2020-06-08T23:41:56","slug":"v-ublock-origin-dobavlena-blokirovka-skriptov-dlya-skanirovaniya-setevyh-portov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-ublock-origin-dobavlena-blokirovka-skriptov-dlya-skanirovaniya-setevyh-portov","title":{"rendered":"In uBlock Origin \u00e8 stata aggiunta la funzione di blocco degli script per la scansione delle porte di rete.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Nel filtro utilizzato in uBlock Origin <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/easylist\/easylist\/tree\/master\/easyprivacy\">EasyPrivacy<\/a><\/noindex> sono state aggiunte regole per bloccare i tipici script di scansione delle porte di rete sul sistema locale dell'utente. Ricordiamo che a maggio <noindex><a rel=\"nofollow\" href=\"https:\/\/nullsweep.com\/why-is-this-website-port-scanning-me\/\">\u00e8 stata rilevata<\/a><\/noindex> la scansione delle porte locali durante l'apertura del sito eBay.com. \u00c8 emerso che tale pratica non \u00e8 limitata a eBay e molti <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1Nu4lpyZ5PQUIpiLJBddXnr67t5-1y0u40dzyzSYj1gc\/edit#gid=0\">altri siti<\/a><\/noindex> (Citibank, TD Bank, Sky, GumTree, WePay, ecc.) applicano la scansione delle porte del sistema locale dell'utente durante l'apertura delle loro pagine, utilizzando codice per rilevare tentativi di accesso da computer compromessi, fornito dal servizio ThreatMetrix.<\/p>\n<p>Nel caso di eBay, venivano controllate 14 porte di rete associate a server di accesso remoto, come VNC, TeamViewer, Anyplace Control, Aeroadmin, Ammy Admin e RDP. \u00c8 probabile che il controllo venga effettuato <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.nem.ec\/2020\/05\/24\/ebay-port-scanning\/\">per determinare<\/a><\/noindex> la presenza di tracce di compromissione del sistema da parte di software maligno al fine di prevenire acquisti fraudolenti utilizzando botnet. La scansione potrebbe essere utilizzata anche per raccogliere dati per un'identificazione <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50176\">indiretta dell'utente<\/a><\/noindex>.<\/p>\n<p>Per la scansione viene utilizzata una tecnica basata sul tentativo di stabilire connessioni a diverse porte di rete dell'host 127.0.0.1 (localhost) tramite <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/WebSocket\">WebSocket<\/a><\/noindex>La presenza di una porta di rete aperta \u00e8 determinata indirettamente sulla base della differenza nel trattamento degli errori di connessione a porte di rete attive e non utilizzate. WebSocket consente di inviare solo richieste HTTP, ma una richiesta per una porta di rete non attiva termina immediatamente con un errore, mentre per una porta attiva si chiude solo dopo un certo tempo, durante il quale si tenta di stabilire la connessione. Inoltre, nel caso di una porta non attiva, WebSocket restituisce il codice di errore di connessione (ERR_CONNECTION_REFUSED), mentre nel caso di una porta attiva \u2012 il codice di errore per il tentativo di connessione. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/nullsweep.com\/content\/images\/2020\/05\/ebay_port_scan-1.png\"><img decoding=\"async\" alt=\"In uBlock Origin \u00e8 stata aggiunta la funzione di blocco degli script per la scansione delle porte di rete.\" src=\"\/wp-content\/uploads\/2020\/06\/a9250f9331486b7871c7446eb59010a8.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Oltre alla scansione delle porte, WebSockets pu\u00f2 <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/@stestagg\/stealing-secrets-from-developers-using-websockets-254f98d577a0\">essere utilizzato<\/a><\/noindex> essere utilizzato per attacchi ai sistemi di sviluppatori web, che eseguono handler WebSocket sulla sistema locale per applicazioni React. Un sito esterno pu\u00f2 esplorare le porte di rete, determinare la presenza di tale handler e connettersi ad esso. Se lo sviluppatore commette un errore, l'attaccante pu\u00f2 ottenere il contenuto dei dati di debug, che possono includere informazioni riservate frammentarie.<\/p>\n<p> <center><noindex><a rel=\"nofollow\" href=\"https:\/\/miro.medium.com\/max\/1400\/1*AYuqFr8n8-_nhrqxCc0LqA.png\"><img decoding=\"async\" alt=\"In uBlock Origin \u00e8 stata aggiunta la funzione di blocco degli script per la scansione delle porte di rete.\" src=\"\/wp-content\/uploads\/2020\/06\/b253f2b0f98b3b3a41e69d8e1ab3cc57.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/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=53113\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0439 \u0432 uBlock Origin \u0444\u0438\u043b\u044c\u0442\u0440 EasyPrivacy \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0434\u043b\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0442\u0438\u043f\u043e\u0432\u044b\u0445 \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432 \u0441\u043a\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u043e\u0440\u0442\u043e\u0432 \u043d\u0430 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e \u0432 \u043c\u0430\u0435 \u0431\u044b\u043b\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u0441\u043a\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u044b\u0445 \u043f\u043e\u0440\u0442\u043e\u0432 \u043f\u0440\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0441\u0430\u0439\u0442\u0430 eBay.com. \u0412\u044b\u044f\u0441\u043d\u0438\u043b\u043e\u0441\u044c, \u0447\u0442\u043e \u043f\u043e\u0434\u043e\u0431\u043d\u0430\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0430 \u043d\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f eBay \u0438 \u043c\u043d\u043e\u0433\u0438\u0435 \u0434\u0440\u0443\u0433\u0438\u0435 \u0441\u0430\u0439\u0442\u044b (Citibank, TD Bank, Sky, GumTree, WePay \u0438 \u0442.\u043f.) \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u044e\u0442 \u0441\u043a\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0440\u0442\u043e\u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":84556,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-84555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0439 \u0432 uBlock Origin \u0444\u0438\u043b\u044c\u0442\u0440 EasyPrivacy \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0434\u043b\u044f \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0442\u0438\u043f\u043e\u0432\u044b\u0445 \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0432.\" \/>\n\t<meta name=\"robots\" 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