{"id":31538,"date":"2019-10-31T21:41:45","date_gmt":"2019-10-31T18:41:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/dragonblood-vyyavleny-pervye-uyazvimosti-wi-fi-wpa3\/"},"modified":"2019-10-31T21:41:45","modified_gmt":"2019-10-31T18:41:45","slug":"dragonblood-vyyavleny-pervye-uyazvimosti-wi-fi-wpa3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/dragonblood-vyyavleny-pervye-uyazvimosti-wi-fi-wpa3","title":{"rendered":"Dragonblood: felfedezt\u00e9k az els\u0151 sebezhet\u0151s\u00e9geket a Wi-Fi WPA3-ban","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

2017 okt\u00f3ber\u00e9ben v\u00e1ratlanul kider\u00fclt, hogy a Wi-Fi Protected Access II (WPA2) forgalom titkos\u00edt\u00e1s\u00e1ra vonatkoz\u00f3 protokollban komoly sebezhet\u0151s\u00e9g tal\u00e1lhat\u00f3, amely lehet\u0151v\u00e9 teszi a felhaszn\u00e1l\u00f3i jelszavak felfed\u00e9s\u00e9t, \u00e9s ez\u00e1ltal a s\u00e9rtett adatforgalm\u00e1nak lehallgat\u00e1s\u00e1t. A sebezhet\u0151s\u00e9get KRACK-nek nevezt\u00e9k el (a Key Reinstallation Attack r\u00f6vid\u00edt\u00e9se), amelyet Mathy Vanhoef \u00e9s Eyal Ronen szakemberek fedeztek fel. A felfedez\u00e9s ut\u00e1n a KRACK sebezhet\u0151s\u00e9g jav\u00edtva lett a k\u00e9sz\u00fcl\u00e9kekhez k\u00e9sz\u00fclt friss\u00edt\u00e9sekkel, m\u00edg a tavaly bevezetett WPA3 protokoll teljesen megoldotta volna a Wi-Fi h\u00e1l\u00f3zatok biztons\u00e1gi probl\u00e9m\u00e1it. <\/p>\n

\"Dragonblood:<\/p>\n

Sajnos ugyanezek a szakemberek m\u00e9g vesz\u00e9lyesebb sebezhet\u0151s\u00e9geket is felfedeztek a WPA3 protokollban. Ez\u00e9rt ism\u00e9t v\u00e1rni \u00e9s rem\u00e9nykedni kell \u00faj firmware-ekre a vezet\u00e9k n\u00e9lk\u00fcli hozz\u00e1f\u00e9r\u00e9si pontok \u00e9s eszk\u00f6z\u00f6k sz\u00e1m\u00e1ra, k\u00fcl\u00f6nben a felhaszn\u00e1l\u00f3knak tudom\u00e1sul kell venni\u00fck a h\u00e1ztart\u00e1si \u00e9s nyilv\u00e1nos Wi-Fi h\u00e1l\u00f3zatok sebezhet\u0151s\u00e9geit. A WPA3-ban tal\u00e1lt sebezhet\u0151s\u00e9gek \u00f6sszefoglal\u00f3 neve Dragonblood.<\/p>\n

A probl\u00e9ma gy\u00f6kerei, ak\u00e1rcsak kor\u00e1bban, a kapcsolatfel\u00e1ll\u00edt\u00e1si mechanizmus m\u0171k\u00f6d\u00e9s\u00e9ben rejlenek, amelyet a szabv\u00e1nyban 'k\u00e9zfog\u00e1snak' neveznek. Ez a mechanizmus a WPA3 szabv\u00e1nyban Dragonfly-nak (s\u00e1skah\u00e1sz) h\u00edvj\u00e1k. A Dragonblood felfedez\u00e9se el\u0151tt j\u00f3l v\u00e9dettnek sz\u00e1m\u00edtott. A Dragonblood csomagban \u00f6sszesen \u00f6t sebezhet\u0151s\u00e9gi v\u00e1ltozat tal\u00e1lhat\u00f3: szolg\u00e1ltat\u00e1smegtagad\u00e1s, k\u00e9t sebezhet\u0151s\u00e9g a v\u00e9delmi szint cs\u00f6kkent\u00e9s\u00e9re (downgrade) \u00e9s k\u00e9t sebezhet\u0151s\u00e9g mell\u00e9kcsatorn\u00e1s t\u00e1mad\u00e1sokra (side-channel).<\/p>\n

<\/center>
\n\"Dragonblood:<\/p>\n

A szolg\u00e1ltat\u00e1smegtagad\u00e1s nem okoz adatlez\u00e1r\u00e1st, de kellemetlen esem\u00e9ny lehet a felhaszn\u00e1l\u00f3 sz\u00e1m\u00e1ra, aki \u00fajra \u00e9s \u00fajra k\u00e9ptelen csatlakozni a hozz\u00e1f\u00e9r\u00e9si ponthoz. A t\u00f6bbi sebezhet\u0151s\u00e9g lehet\u0151v\u00e9 teszi a t\u00e1mad\u00f3 sz\u00e1m\u00e1ra, hogy helyre\u00e1ll\u00edtsa a felhaszn\u00e1l\u00f3 hozz\u00e1f\u00e9r\u00e9si pontokhoz val\u00f3 csatlakoz\u00e1s\u00e1hoz sz\u00fcks\u00e9ges jelszavakat, \u00e9s nyomon k\u00f6vesse b\u00e1rmilyen felhaszn\u00e1l\u00f3 \u00e1ltal kritikus inform\u00e1ci\u00f3t.<\/p>\n

A v\u00e9delmi szint cs\u00f6kkent\u00e9s\u00e9re ir\u00e1nyul\u00f3 t\u00e1mad\u00e1sok lehet\u0151v\u00e9 teszik, hogy k\u00e9nyszer\u00edtve legyen visszat\u00e9r\u00e9s a r\u00e9gebbi WPA2 protokoll verzi\u00f3ra, vagy gyeng\u00e9bb WPA3 titkos\u00edt\u00e1si algoritmusokra, majd folytatni a felt\u00f6r\u00e9st m\u00e1r ismert m\u00f3dszerekkel. A mell\u00e9kcsatorn\u00e1s t\u00e1mad\u00e1sok a WPA3 algoritmusok saj\u00e1toss\u00e1gait \u00e9s megval\u00f3s\u00edt\u00e1sait c\u00e9lozz\u00e1k meg, ami v\u00e9gs\u0151 soron lehet\u0151v\u00e9 teszi a kor\u00e1bban ismert jelsz\u00f3t\u00f6r\u00e9si m\u00f3dszerek alkalmaz\u00e1s\u00e1t. Tov\u00e1bbi inform\u00e1ci\u00f3k itt tal\u00e1lhat\u00f3k. A Dragonblood sebezhet\u0151s\u00e9gek azonos\u00edt\u00e1s\u00e1hoz sz\u00fcks\u00e9ges eszk\u00f6zk\u00e9szlet ezen a linken tal\u00e1lhat\u00f3.<\/p>\n

\"Dragonblood:<\/p>\n

A Wi-Fi sz\u00f6vets\u00e9g, amely a Wi-Fi szabv\u00e1nyok fejleszt\u00e9s\u00e9\u00e9rt felel\u0151s, \u00e9rtes\u00fclt a felfedezett s\u00e9r\u00fcl\u00e9kenys\u00e9gekr\u0151l. Jelent\u00e9sek szerint a gy\u00e1rt\u00f3k m\u00f3dos\u00edtott firmware-eket k\u00e9sz\u00edtenek a biztons\u00e1gi r\u00e9sek bez\u00e1r\u00e1s\u00e1ra. Az eszk\u00f6z\u00f6k cser\u00e9j\u00e9re \u00e9s visszav\u00e9tel\u00e9re nincs sz\u00fcks\u00e9g.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
\n
Forr\u00e1s: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043e\u043a\u0442\u044f\u0431\u0440\u0435 2017 \u0433\u043e\u0434\u0430 \u043d\u0435\u043e\u0436\u0438\u0434\u0430\u043d\u043d\u043e \u0432\u044b\u044f\u0441\u043d\u0438\u043b\u043e\u0441\u044c, \u0447\u0442\u043e \u0432 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0435 Wi-Fi Protected Access II (WPA2) \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0440\u0430\u0444\u0438\u043a\u0430 Wi-Fi \u0438\u043c\u0435\u0435\u0442\u0441\u044f \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u044b\u044f\u0432\u043b\u044f\u0442\u044c \u043f\u0430\u0440\u043e\u043b\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438 \u0437\u0430\u0442\u0435\u043c \u043f\u0440\u043e\u0441\u043b\u0443\u0448\u0438\u0432\u0430\u0442\u044c \u043e\u0431\u043c\u0435\u043d \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0436\u0435\u0440\u0442\u0432\u044b. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 KRACK (\u0441\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043e\u0442 Key Reinstallation Attack) \u0438 \u0431\u044b\u043b\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0441\u0442\u0430\u043c\u0438 \u041c\u044d\u0442\u0438 \u0412\u0430\u043d\u0445\u043e\u0444\u043e\u043c (Mathy Vanhoef) \u0438 \u042d\u0439\u0430\u043b\u043e\u043c \u0420\u043e\u043d\u0435\u043d\u043e\u043c (Eyal Ronen). \u041f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":23463,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-31538","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Dragonblood: a WPA3 Wi-Fi els\u0151 s\u00e9r\u00fcl\u00e9kenys\u00e9gei felfedezve | ProHoster","description":"2017 okt\u00f3ber\u00e9ben v\u00e1ratlanul kider\u00fclt, hogy a Wi-Fi Protected Access II (WPA2) protokollban, amely a Wi-Fi forgalom titkos\u00edt\u00e1s\u00e1\u00e9rt felel, komoly s\u00e9r\u00fcl\u00e9kenys\u00e9g tal\u00e1lhat\u00f3, amely lehet\u0151v\u00e9 teszi a felhaszn\u00e1l\u00f3i jelszavak azonos\u00edt\u00e1s\u00e1t.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/dragonblood-vyyavleny-pervye-uyazvimosti-wi-fi-wpa3","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Dragonblood: \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u043f\u0435\u0440\u0432\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 Wi-Fi WPA3 | ProHoster","og:description":"\u0412 \u043e\u043a\u0442\u044f\u0431\u0440\u0435 2017 \u0433\u043e\u0434\u0430 \u043d\u0435\u043e\u0436\u0438\u0434\u0430\u043d\u043d\u043e \u0432\u044b\u044f\u0441\u043d\u0438\u043b\u043e\u0441\u044c, \u0447\u0442\u043e \u0432 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0435 Wi-Fi Protected Access II (WPA2) \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0440\u0430\u0444\u0438\u043a\u0430 Wi-Fi \u0438\u043c\u0435\u0435\u0442\u0441\u044f \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u044b\u044f\u0432\u043b\u044f\u0442\u044c \u043f\u0430\u0440\u043e\u043b\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438 \u0437\u0430\u0442\u0435\u043c.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/dragonblood-vyyavleny-pervye-uyazvimosti-wi-fi-wpa3","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T18:41:45+00:00","article:modified_time":"2019-10-31T18:41:45+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"31538","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-21 06:39:22","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 03:15:45","updated":"2026-01-21 06:39:22","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/31538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=31538"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/31538\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media\/23463"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=31538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=31538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=31538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}