{"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\/nl\/blog\/news\/v-ublock-origin-dobavlena-blokirovka-skriptov-dlya-skanirovaniya-setevyh-portov","title":{"rendered":"uBlock Origin heeft de blokkering van scripts voor het scannen van netwerken toegevoegd.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In de filter toegepast in uBlock Origin <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/easylist\/easylist\/tree\/master\/easyprivacy\">EasyPrivacy<\/a><\/noindex> zijn regels toegevoegd om typische scripts voor het scannen van netwerken op het lokale systeem van de gebruiker te blokkeren. Ter herinnering, in mei <noindex><a rel=\"nofollow\" href=\"https:\/\/nullsweep.com\/why-is-this-website-port-scanning-me\/\">werd vastgesteld<\/a><\/noindex> dat er scans van lokale poorten plaatsvonden bij het openen van de site eBay.com. Het is gebleken dat deze praktijk niet beperkt is tot eBay en dat veel <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.google.com\/spreadsheets\/d\/1Nu4lpyZ5PQUIpiLJBddXnr67t5-1y0u40dzyzSYj1gc\/edit#gid=0\">andere sites<\/a><\/noindex> (Citibank, TD Bank, Sky, GumTree, WePay, etc.) ook scans van de poorten van het lokale systeem van de gebruiker uitvoeren bij het openen van hun pagina's, met gebruik van code om pogingen tot toegang vanaf gehackte computers te detecteren, geleverd door de dienst ThreatMetrix.<\/p>\n<p>In het geval van eBay werden 14 netwerpoortscans uitgevoerd die geassocieerd zijn met externe toegangservers zoals VNC, TeamViewer, Anyplace Control, Aeroadmin, Ammy Admin en RDP. Vermoedelijk wordt deze controle <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.nem.ec\/2020\/05\/24\/ebay-port-scanning\/\">voor de bepaling van<\/a><\/noindex> uitgevoerd om aanwijzingen van infectie met malware te identificeren met het doel frauduleuze aankopen via botnets te voorkomen. Scannen kan ook worden gebruikt om gegevens voor indirecte <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50176\">identificatie van de gebruiker te verkrijgen.<\/a><\/noindex>.<\/p>\n<p>Voor het scannen wordt een techniek gebruikt die gebaseerd is op het proberen verbinding te maken met verschillende netwerkpoorten van host 127.0.0.1 (localhost) via <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/WebSocket\">WebSocket<\/a><\/noindex>. Het feit dat een netwerkpoort open is, wordt indirect vastgesteld op basis van het verschil in foutafhandeling bij verbinding met actieve en niet-gebruikte netwerkpoorten. WebSocket kan alleen HTTP-verzoeken verzenden, maar een dergelijk verzoek voor een inactieve netwerkpoort resulteert onmiddellijk in een foutmelding, terwijl een actief poort eerst een tijdje wacht in een poging om de verbinding te maken. Bovendien geeft WebSocket bij een inactieve poort een verbindingsfoutcode (ERR_CONNECTION_REFUSED), terwijl het bij een actieve poort een foutcode voor verbroken verbinding teruggeeft. <\/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=\"uBlock Origin heeft de blokkering van scripts voor het scannen van netwerken toegevoegd.\" src=\"\/wp-content\/uploads\/2020\/06\/a9250f9331486b7871c7446eb59010a8.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Naast het scannen van poorten kan WebSockets ook <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/@stestagg\/stealing-secrets-from-developers-using-websockets-254f98d577a0\">worden gebruikt<\/a><\/noindex> worden gebruikt voor aanvallen op systemen van webontwikkelaars die WebSocket-handlers voor React-applicaties op hun lokale systeem draaien. Een externe site kan netwerkpoorten scannen, de aanwezigheid van zo'n handler bepalen en verbinding maken. Als de ontwikkelaar een fout maakt, kan de aanvaller de inhoud van debug-informatie verkrijgen, die fragmentarische vertrouwelijke gegevens kan bevatten.<\/p>\n<p> <center><noindex><a rel=\"nofollow\" href=\"https:\/\/miro.medium.com\/max\/1400\/1*AYuqFr8n8-_nhrqxCc0LqA.png\"><img decoding=\"async\" alt=\"uBlock Origin heeft de blokkering van scripts voor het scannen van netwerken toegevoegd.\" 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>Bron: <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 5.0.3 - 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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