{"id":100172,"date":"2021-05-15T22:22:39","date_gmt":"2021-05-15T20:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/identifikacziya-cherez-analiz-vneshnih-obrabotchikov-protokolov-v-brauzere"},"modified":"2021-05-15T22:22:39","modified_gmt":"2021-05-15T20:22:39","slug":"identifikacziya-cherez-analiz-vneshnih-obrabotchikov-protokolov-v-brauzere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/identifikacziya-cherez-analiz-vneshnih-obrabotchikov-protokolov-v-brauzere","title":{"rendered":"Azonos\u00edt\u00e1s a b\u00f6ng\u00e9sz\u0151 k\u00fcls\u0151 protokollkezel\u0151in v\u00e9gzett elemz\u00e9s alapj\u00e1n","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A fingerprintjs k\u00f6nyvt\u00e1r fejleszt\u0151i, akik lehet\u0151v\u00e9 teszik a b\u00f6ng\u00e9sz\u0151 azonos\u00edt\u00f3k passz\u00edv m\u00f3don t\u00f6rt\u00e9n\u0151 gener\u00e1l\u00e1s\u00e1t, k\u00f6zvetett jellemz\u0151k, p\u00e9ld\u00e1ul a k\u00e9perny\u0151 felbont\u00e1sa, a WebGL saj\u00e1toss\u00e1gai, valamint a telep\u00edtett b\u0151v\u00edtm\u00e9nyek \u00e9s bet\u0171t\u00edpusok list\u00e1ja alapj\u00e1n, bemutattak egy \u00faj azonos\u00edt\u00e1si m\u00f3dszert, amely a felhaszn\u00e1l\u00f3 \u00e1ltal telep\u00edtett gyakori alkalmaz\u00e1sok t\u00e1mogat\u00e1s\u00e1nak ellen\u0151rz\u00e9s\u00e9n alapul. A m\u00f3dszer megval\u00f3s\u00edt\u00e1s\u00e1hoz sz\u00fcks\u00e9ges k\u00f3d MIT enged\u00e9ly alatt ker\u00fclt kiad\u00e1sra. <\/p>\n

A vizsg\u00e1lat a 32 n\u00e9pszer\u0171 alkalmaz\u00e1shoz t\u00f6rt\u00e9n\u0151 kezel\u0151k hozz\u00e1rendel\u00e9s\u00e9nek elemz\u00e9se alapj\u00e1n t\u00f6rt\u00e9nik. P\u00e9ld\u00e1ul, ha a b\u00f6ng\u00e9sz\u0151ben megtal\u00e1lhat\u00f3 a telegram:\/\/, slack:\/\/ \u00e9s skype:\/\/ URL-kezel\u0151k, akkor felt\u00e9telezhet\u0151, hogy a rendszerben l\u00e9teznek a telegram, slack \u00e9s skype alkalmaz\u00e1sok, \u00e9s ezt az inform\u00e1ci\u00f3t felhaszn\u00e1lhatjuk a rendszer azonos\u00edt\u00f3j\u00e1nak gener\u00e1l\u00e1sa sor\u00e1n. Mivel a kezel\u0151k list\u00e1ja az \u00f6sszes b\u00f6ng\u00e9sz\u0151ben azonos a rendszeren, az azonos\u00edt\u00f3 nem v\u00e1ltozik b\u00f6ng\u00e9sz\u0151v\u00e1lt\u00e1skor, \u00e9s alkalmazhat\u00f3 Chrome, Firefox, Safari, Brave, Yandex Browser, Edge \u00e9s ak\u00e1r Tor Browser eset\u00e9n is. <\/p>\n

A m\u00f3dszer 32 bites azonos\u00edt\u00f3k gener\u00e1l\u00e1s\u00e1ra k\u00e9pes, teh\u00e1t k\u00fcl\u00f6n-k\u00fcl\u00f6n nem biztos\u00edt nagy pontoss\u00e1got, de m\u00e1s param\u00e9terekkel kombin\u00e1lva \u00e9rtelmes kieg\u00e9sz\u00edt\u0151 jellemz\u0151. A m\u00f3dszer jelent\u0151s h\u00e1tr\u00e1nya, hogy a felhaszn\u00e1l\u00f3 sz\u00e1m\u00e1ra \u00e9szlelhet\u0151 az azonos\u00edt\u00e1si k\u00eds\u00e9rlet \u2014 az aj\u00e1nlott bemutat\u00f3oldalon az azonos\u00edt\u00f3 gener\u00e1l\u00e1sa sor\u00e1n a jobb als\u00f3 sarokban ny\u00edlik meg egy kis, de egy\u00e9rtelm\u0171en l\u00e1that\u00f3 ablak, amelyben a feldolgoz\u00f3k hosszabb ideig tal\u00e1lgatnak. Ez a h\u00e1tr\u00e1ny nem nyilv\u00e1nul meg a Tor b\u00f6ng\u00e9sz\u0151ben, ahol az azonos\u00edt\u00f3 \u00e9szrev\u00e9tlen\u00fcl sz\u00e1m\u00edthat\u00f3 ki. <\/p>\n

Az alkalmaz\u00e1s l\u00e9tez\u00e9s\u00e9nek meghat\u00e1roz\u00e1s\u00e1hoz a szkript megpr\u00f3b\u00e1l egy k\u00fcls\u0151 protokollhoz kapcsolt linket megnyitni egy felugr\u00f3 ablakban, majd a b\u00f6ng\u00e9sz\u0151 p\u00e1rbesz\u00e9dpanelen felaj\u00e1nlja a tartalom megnyit\u00e1s\u00e1t a kapcsolt alkalmaz\u00e1sban, ha az ellen\u0151rz\u00f6tt alkalmaz\u00e1s jelen van, vagy hibaoldalt jelen\u00edt meg, ha az alkalmaz\u00e1s nincs a rendszerben. A tipikus k\u00fcls\u0151 kezel\u0151k sorozatos \u00e1tvizsg\u00e1l\u00e1s\u00e1val \u00e9s a hib\u00e1k visszah\u00edv\u00e1s\u00e1nak elemz\u00e9s\u00e9vel k\u00f6vetkeztethet\u00fcnk a vizsg\u00e1lt programok jelenl\u00e9t\u00e9re a rendszerben. <\/p>\n

A Chrome 90 alatt Linux rendszeren a m\u00f3dszer nem m\u0171k\u00f6d\u00f6tt, \u00e9s a b\u00f6ng\u00e9sz\u0151 minden ellen\u0151rz\u00e9si k\u00eds\u00e9rletre megjelen\u00edtette a szok\u00e1sos m\u0171veletmeger\u0151s\u00edt\u0151 p\u00e1rbesz\u00e9dablakot (a Chrome Windows \u00e9s macOS verzi\u00f3j\u00e1ban a m\u00f3dszer m\u0171k\u00f6dik). A Firefox 88 eset\u00e9n Linux alatt, ak\u00e1r norm\u00e1l m\u00f3dban, ak\u00e1r inkognit\u00f3 m\u00f3dban, a szkript azonos\u00edtotta a telep\u00edtett kieg\u00e9sz\u00edt\u0151 alkalmaz\u00e1sok megl\u00e9t\u00e9t a list\u00e1b\u00f3l, az azonos\u00edt\u00e1s pontoss\u00e1ga pedig 99,87%-ra lett \u00e9rt\u00e9kelve (35 hasonl\u00f3 egyez\u00e9s 26 ezer v\u00e9grehajtott tesztb\u0151l). A saj\u00e1t rendszeren fut\u00f3 Tor Browserben egy azonos\u00edt\u00f3t gener\u00e1ltak, amely megegyezett a Firefox tesztj\u00e9vel. <\/p>\n

\u00c9rdekes, hogy a Tor Browser kieg\u00e9sz\u00edt\u0151 v\u00e9delme vissza\u00fct\u00f6tt, \u00e9s lehet\u0151s\u00e9get adott a felhaszn\u00e1l\u00f3 \u00e9szrev\u00e9tlen azonos\u00edt\u00e1s\u00e1ra. A Tor Browserben a k\u00fcls\u0151 feldolgoz\u00f3k haszn\u00e1lat\u00e1nak meger\u0151s\u00edt\u00e9s\u00e9re szolg\u00e1l\u00f3 p\u00e1rbesz\u00e9dablakok letilt\u00e1sa miatt a tesztk\u00e9r\u00e9seket iframe-ben lehetett megnyitni, nem pedig felugr\u00f3 ablakban (az el\u00e9rhet\u0151s\u00e9g megk\u00fcl\u00f6nb\u00f6ztet\u00e9s\u00e9hez azt haszn\u00e1lj\u00e1k, hogy a same-origin szab\u00e1lyok letiltj\u00e1k a hib\u00e1s oldalakhoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st, \u00e9s enged\u00e9lyezik az about:blank oldalakhoz val\u00f3 hozz\u00e1f\u00e9r\u00e9st). A flood elleni v\u00e9delem miatt a Tor Browserben a vizsg\u00e1lat \u00e9szrevehet\u0151en hosszabb ideig tart (10 m\u00e1sodpercet ig\u00e9nyel egy alkalmaz\u00e1s eset\u00e9n).
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 fingerprintjs, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0432 \u043f\u0430\u0441\u0441\u0438\u0432\u043d\u043e\u043c \u0440\u0435\u0436\u0438\u043c\u0435 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u0438\u0437\u043d\u0430\u043a\u043e\u0432, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u044d\u043a\u0440\u0430\u043d\u0430, \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 WebGL, \u0441\u043f\u0438\u0441\u043a\u0438 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\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432. \u041a\u043e\u0434 \u0441\u043a\u0440\u0438\u043f\u0442\u0430 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0442\u043e\u0434\u0430 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0439 […]<\/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-100172","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Az azonos\u00edt\u00e1s k\u00fcls\u0151 protokollkezel\u0151k b\u00f6ng\u00e9sz\u0151beli elemz\u00e9s\u00e9vel | ProHoster","description":"A fingerprintjs k\u00f6nyvt\u00e1r fejleszt\u0151i, amely lehet\u0151v\u00e9 teszi a b\u00f6ng\u00e9sz\u0151 azonos\u00edt\u00f3k passz\u00edv m\u00f3dban t\u00f6rt\u00e9n\u0151 gener\u00e1l\u00e1s\u00e1t k\u00f6zvetett jelek, p\u00e9ld\u00e1ul a k\u00e9perny\u0151 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\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 | ProHoster","og:description":"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 fingerprintjs, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0432 \u043f\u0430\u0441\u0441\u0438\u0432\u043d\u043e\u043c \u0440\u0435\u0436\u0438\u043c\u0435 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u0438\u0437\u043d\u0430\u043a\u043e\u0432, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a 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