{"id":181791,"date":"2026-05-29T02:48:54","date_gmt":"2026-05-29T00:48:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opredelenie-poseshhaemyh-sajtov-cherez-analiz-aktivnosti-ssd-iz-web-brauzera"},"modified":"2026-05-29T02:48:54","modified_gmt":"2026-05-29T00:48:55","slug":"opredelenie-poseshhaemyh-sajtov-cherez-analiz-aktivnosti-ssd-iz-web-brauzera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/opredelenie-poseshhaemyh-sajtov-cherez-analiz-aktivnosti-ssd-iz-web-brauzera","title":{"rendered":"K\u00fclastatud veebisaitide m\u00e4\u00e4ramine SSD tegevuse anal\u00fc\u00fcsi kaudu veebibrauserist","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Graz Tehnika \u00dclikooli teadlaste r\u00fchm on v\u00e4lja t\u00f6\u00f6tanud FROST (Fingerprinting Remotely using OPFS-based SSD Timing) r\u00fcndetehnika, mis v\u00f5imaldab anal\u00fc\u00fcsides SSD-m\u00e4lu aktiivsust JavaScripti koodi k\u00e4itamisel brauseris t\u00e4pselt m\u00e4\u00e4rata, milliseid saite kasutajad avavad, t\u00e4psusega 88,95%, samuti s\u00fcsteemis k\u00e4ivitatud rakendusi t\u00e4psusega 95,83%. Seda meetodit saab kasutada ka peidetud suhtlusteede loomiseks kohaliku rakenduse ja JavaScripti koodi vahel brauseris. Andmeedastuse j\u00f5udlus Linuxis oli 661 bitti\/s ja macOS-is 892 bitti\/s.<\/p>\n

R\u00fcnnak p\u00f5hineb asjaolul, et juurde p\u00e4\u00e4semise aja muutumise iseloom SSD-m\u00e4lule veebisaidi avamisel v\u00f5i veebirakenduse k\u00e4ivitamisel on konkreetse saidi ja rakenduse jaoks spetsiifiline. Kasutades tavalisi ajamuutuste koopiaid eelnevalt m\u00f5\u00f5detud veebisaitide ja rakenduste jaoks, saab eristada nendele iseloomulikku tegevust teiste sisend\/v\u00e4ljundoperatsioonide taustal. Tehtud r\u00fcnnaku kontekstis v\u00f5rreldakse sisend\/v\u00e4ljundide viivitusi saidi ja rakenduse allkirjadega.
\nkasutatakse konvolutsioonilist n\u00e4rviv\u00f5rku, mis suudab m\u00fcra taustal mustreid tuvastada.<\/p>\n

Meetodi rakendamiseks brauseris kasutatakse OPFS (Origin-Private FileSystem) API-d, mis v\u00f5imaldab luua faile kohalikus failis\u00fcsteemis (failid luuakse saidiga seotud eraldatud failis\u00fcsteemi osas). SSD-m\u00e4lu juurde p\u00e4\u00e4semise aja anal\u00fc\u00fcs viiakse l\u00e4bi andmetega seotud operatsioonide viivituste m\u00f5\u00f5tmise kaudu. R\u00fcnnaku k\u00e4igus tuleb failide operatsioonide lehe vahem\u00e4lu m\u00f5jude v\u00e4ltimiseks luua v\u00e4ga suurte failide loomine, mis \u00fcletab saadaval oleva muutm\u00e4lu suuruse. <\/p>\n

Brauseritootjatele on r\u00fcnnaku vastu seadusena soovitatud k\u00fcsida kasutajalt eraldi kinnitust juurdep\u00e4\u00e4suks OPFS API-le v\u00f5i piirata maksimaalset faili suurust niimoodi, et see ei \u00fcletaks muutm\u00e4lu suurust. Praegu v\u00f5imaldavad Chrome ja Safari API OPFS kaudu luua faile, mis v\u00f5tavad kuni 60% olemasolevast kettaruumi.<\/p>\n

Chromiumi arendajad Google'ist ei tunnista selliseid r\u00fcnnakuid kolmandate osapoolte kanalite kaudu haavatavustena. Safari arendajad Apple'ist ei v\u00e4lista tulevikus meetodite rakendamist r\u00fcnnaku t\u00f5kestamiseks. Mozilla ettev\u00f5te tunnustas probleemi olemasolu, kuid ei ole veel lahendust ellu viinud.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0432 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 JavaScript-\u043a\u043e\u0434\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u0435\u043c\u044b\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u043c \u0441\u0430\u0439\u0442\u044b \u0441 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e 88.95%, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0435 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0441 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e 95.83%. \u041c\u0435\u0442\u043e\u0434 \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u043a\u0430\u043d\u0430\u043b\u0430 \u0441\u0432\u044f\u0437\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181791","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\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\udd47K\u00fclastatud saitide tuvastamine SSD aktiivsuse anal\u00fc\u00fcsi kaudu veebibrauserist | ProHoster","description":"Graz'i tehnika\u00fclikooli (Austrias) teadlaste grupp on v\u00e4lja t\u00f6\u00f6tanud FROST (Fingerprinting Remotely using 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