{"id":116911,"date":"2024-07-03T18:05:54","date_gmt":"2024-07-03T16:05:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-nachnyot-vyplachivat-voznagrazhdeniya-za-vyyavlenie-uyazvimostej-v-gipervizore-kvm"},"modified":"2024-07-03T18:05:54","modified_gmt":"2024-07-03T16:05:54","slug":"google-nachnyot-vyplachivat-voznagrazhdeniya-za-vyyavlenie-uyazvimostej-v-gipervizore-kvm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/google-nachnyot-vyplachivat-voznagrazhdeniya-za-vyyavlenie-uyazvimostej-v-gipervizore-kvm","title":{"rendered":"A Google jutalmakat kezd el kifizetni a KVM hipervizor sebezhet\u0151s\u00e9geinek felfedez\u00e9s\u00e9\u00e9rt.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Google bemutatja a kvmCTF kezdem\u00e9nyez\u00e9st, melynek keret\u00e9ben a biztons\u00e1gi kutat\u00f3k p\u00e9nzbeli jutalomban r\u00e9szes\u00fclhetnek a KVM (Kernel-alap\u00fa Virtu\u00e1lis G\u00e9p) hipervez\u00e9rl\u0151j\u00e9ben tal\u00e1lhat\u00f3 sebezhet\u0151s\u00e9gek felfedez\u00e9s\u00e9\u00e9rt. A Google \u00e9rdekl\u0151d\u00e9se a KVM ir\u00e1nt r\u00e9szben annak k\u00f6sz\u00f6nhet\u0151, hogy ezt a hipervez\u00e9rl\u0151t haszn\u00e1lj\u00e1k a Google Cloud szolg\u00e1ltat\u00e1s\u00e1ban, valamint az Android \u00e9s ChromeOS platformokon (a CrosVM a KVM-re \u00e9p\u00fcl). A jutalom megszerz\u00e9s\u00e9hez be kell mutatni a friss Linux kernelre \u00e9p\u00fcl\u0151 CTF (Capture the Flag) k\u00f6rnyezetben t\u00f6rt\u00e9n\u0151 t\u00e1mad\u00e1st, amelyhez virtu\u00e1lis g\u00e9p hozz\u00e1f\u00e9r\u00e9st k\u00e9r\u00e9s alapj\u00e1n biztos\u00edtanak. A t\u00e1mad\u00f3nak ki kell haszn\u00e1lnia egy sebezhet\u0151s\u00e9get a rendszerben. KVM<\/a> a Linux kernelben, amely biztos\u00edtja a hoszt rendszer m\u0171k\u00f6d\u00e9s\u00e9t ebben a k\u00f6rnyezetben.<\/p>\n

A kor\u00e1bban ismeretlen sebezhet\u0151s\u00e9g, amely lehet\u0151v\u00e9 teszi a virtu\u00e1lis g\u00e9pb\u0151l val\u00f3 kil\u00e9p\u00e9st, 250 ezer doll\u00e1ros kifizet\u00e9st von maga ut\u00e1n, m\u00edg a mem\u00f3ri\u00e1ban tetsz\u0151leges ter\u00fclet \u00edr\u00e1s\u00e1t lehet\u0151v\u00e9 tev\u0151 sebezhet\u0151s\u00e9g\u00e9rt 100 ezer doll\u00e1r j\u00e1r. Azok a sebezhet\u0151s\u00e9gek, amelyek a mem\u00f3ri\u00e1b\u00f3l tetsz\u0151leges ter\u00fclet olvas\u00e1s\u00e1hoz vagy szomsz\u00e9dos mem\u00f3riater\u00fcletekbe val\u00f3 \u00edr\u00e1shoz vezetnek, 50 ezer doll\u00e1ros kifizet\u00e9ssel j\u00e1rnak, a DoS-sebezhet\u0151s\u00e9gek\u00e9rt pedig 20 ezer doll\u00e1r jutalom j\u00e1r, m\u00edg a szomsz\u00e9dos mem\u00f3ri\u00e1b\u00f3l t\u00f6rt\u00e9n\u0151 olvas\u00e1s 10 ezer doll\u00e1rt \u00e9r. A tetsz\u0151leges mem\u00f3riater\u00fcleten v\u00e9gzett \u00edr\u00e1s vagy olvas\u00e1s d\u00edj\u00e1t akkor lehet megszerezni, ha egy adott c\u00edm \u00e9rt\u00e9k\u00e9t m\u00f3dos\u00edtj\u00e1k vagy szerzik meg a mem\u00f3ri\u00e1ban, m\u00edg a szomsz\u00e9dos ter\u00fclet eset\u00e9ben a KASAN (Kernel address sanitizer) hibakeres\u0151 eszk\u00f6z \u00e1ltal \u00e9szlelhet\u0151 hib\u00e1k\u00e9rt, mint p\u00e9ld\u00e1ul a puffer t\u00falcsordul\u00e1s vagy m\u00e1r felszabad\u00edtott mem\u00f3riater\u00fclet el\u00e9r\u00e9se, j\u00e1r a jutalom. A DoS-sebezhet\u0151s\u00e9g\u00e9rt j\u00e1r\u00f3 jutalom akkor ker\u00fcl kifizet\u00e9sre, ha null mutat\u00f3 derefer\u00e1l\u00e1st (null-ptr-deref a KASAN-ban) \u00e9szlelnek.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u0438\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u0443 kvmCTF, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u0435\u043d\u0435\u0436\u043d\u043e\u0435 \u0432\u043e\u0437\u043d\u0430\u0433\u0440\u0430\u0436\u0434\u0435\u043d\u0438\u0435 \u0437\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0435 KVM (Kernel-based Virtual Machine). \u0418\u043d\u0442\u0435\u0440\u0435\u0441 Google \u043a KVM \u043e\u0431\u0443\u0441\u043b\u043e\u0432\u043b\u0435\u043d \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 Google Cloud, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430\u0445 Android \u0438 ChromeOS (CrosVM \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u043d\u0430 KVM). \u0414\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0432\u043e\u0437\u043d\u0430\u0433\u0440\u0430\u0436\u0434\u0435\u043d\u0438\u044f \u0434\u043e\u043b\u0436\u0435\u043d \u0431\u044b\u0442\u044c \u043f\u0440\u043e\u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u0437\u043b\u043e\u043c \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u043d\u043e\u0433\u043e […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-116911","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\udd47A Google jutalmakat kezd kifizetni a KVM hipervez\u00e9rl\u0151j\u00e9ben tal\u00e1lhat\u00f3 sebezhet\u0151s\u00e9gek felfedez\u00e9s\u00e9\u00e9rt | ProHoster","description":"A Google bemutatja a kvmCTF kezdem\u00e9nyez\u00e9st, melynek keret\u00e9ben a biztons\u00e1gi kutat\u00f3k p\u00e9nzbeli jutalomban r\u00e9szes\u00fclhetnek a KVM (Kernel-alap\u00fa Virtu\u00e1lis G\u00e9p) hipervez\u00e9rl\u0151j\u00e9ben tal\u00e1lhat\u00f3 sebezhet\u0151s\u00e9gek felfedez\u00e9s\u00e9\u00e9rt.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/google-nachnyot-vyplachivat-voznagrazhdeniya-za-vyyavlenie-uyazvimostej-v-gipervizore-kvm","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\udd47Google \u043d\u0430\u0447\u043d\u0451\u0442 \u0432\u044b\u043f\u043b\u0430\u0447\u0438\u0432\u0430\u0442\u044c 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