{"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\/pt\/blog\/news\/google-nachnyot-vyplachivat-voznagrazhdeniya-za-vyyavlenie-uyazvimostej-v-gipervizore-kvm","title":{"rendered":"O Google come\u00e7ar\u00e1 a pagar recompensas por identificar vulnerabilidades no hipervisor KVM.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A empresa Google apresentou a iniciativa kvmCTF, na qual os pesquisadores de seguran\u00e7a podem obter recompensas em dinheiro por identificar vulnerabilidades no hipervisor KVM (Kernel-based Virtual Machine). O interesse da Google pelo KVM se deve ao uso deste hipervisor no servi\u00e7o Google Cloud, bem como nas plataformas Android e ChromeOS (CrosVM \u00e9 baseado em KVM). Para receber a recompensa, deve ser demonstrado o comprometimento de um ambiente CTF (Capture the Flag) preparado com um n\u00facleo Linux recente, que executa uma m\u00e1quina virtual, com acesso concedido mediante solicita\u00e7\u00e3o. O atacante \u00e9 desafiado a explorar uma vulnerabilidade no subsistema KVM<\/a> no n\u00facleo Linux, que garante o funcionamento do sistema host neste ambiente.<\/p>\n

A recompensa por identificar uma vulnerabilidade anteriormente desconhecida que permite sair da m\u00e1quina virtual \u00e9 de 250 mil d\u00f3lares, enquanto para vulnerabilidades que permitem a grava\u00e7\u00e3o em uma \u00e1rea de mem\u00f3ria arbitr\u00e1ria, o valor \u00e9 de 100 mil d\u00f3lares. Para vulnerabilidades que levam \u00e0 leitura de uma \u00e1rea de mem\u00f3ria arbitr\u00e1ria ou \u00e0 grava\u00e7\u00e3o em \u00e1reas de mem\u00f3ria adjacentes, a recompensa \u00e9 de 50 mil d\u00f3lares; para vulnerabilidades DoS, o valor \u00e9 de 20 mil d\u00f3lares, e para leitura de uma \u00e1rea adjacente, a recompensa \u00e9 de 10 mil d\u00f3lares. A recompensa por grava\u00e7\u00e3o ou leitura de uma \u00e1rea de mem\u00f3ria arbitr\u00e1ria pode ser obtida ao modificar ou acessar o valor de um endere\u00e7o espec\u00edfico na mem\u00f3ria, enquanto para \u00e1reas adjacentes, envolve erros reconhecidos pela ferramenta de depura\u00e7\u00e3o KASAN (Kernel Address Sanitizer), como estouro de buffer ou acesso a uma \u00e1rea de mem\u00f3ria j\u00e1 liberada. A recompensa por uma vulnerabilidade DoS \u00e9 paga ao identificar a desreferencia\u00e7\u00e3o de um ponteiro nulo (null-ptr-deref no KASAN).
\n
Fonte: 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\udd47Google come\u00e7ar\u00e1 a pagar recompensas por identificar vulnerabilidades no hipervisor KVM | ProHoster","description":"A empresa Google apresentou a iniciativa kvmCTF, na qual os pesquisadores de seguran\u00e7a podem obter recompensas em dinheiro por identificar vulnerabilidades no hipervisor KVM (Kernel-based Virtual 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