{"id":103581,"date":"2022-03-21T21:36:47","date_gmt":"2022-03-21T19:36:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-cri-o-pozvolyayushhaya-poluchit-root-dostup-k-host-okruzheniyu"},"modified":"2022-03-21T21:36:47","modified_gmt":"2022-03-21T19:36:47","slug":"uyazvimost-v-cri-o-pozvolyayushhaya-poluchit-root-dostup-k-host-okruzheniyu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-v-cri-o-pozvolyayushhaya-poluchit-root-dostup-k-host-okruzheniyu","title":{"rendered":"Vulnerabilit\u00e0 in CRI-O, che consente di ottenere accesso root all'ambiente host","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In CRI-O, il runtime per la gestione di container isolati, \u00e8 stata identificata una vulnerabilit\u00e0 critica (CVE-2022-0811) che consente di eludere l'isolamento ed eseguire codice sulla side del sistema host. Se viene utilizzato CRI-O al posto di containerd e Docker per organizzare l'avvio di container gestiti dalla piattaforma Kubernetes, un attaccante pu\u00f2 ottenere il controllo su qualsiasi nodo nel cluster Kubernetes. Per condurre l'attacco sono sufficienti i diritti per avviare il proprio container nel cluster Kubernetes. <\/p>\n

La vulnerabilit\u00e0 \u00e8 causata dalla possibilit\u00e0 di modificare il parametro sysctl del kernel \u00abkernel.core_pattern\u00bb (\u00ab\/proc\/sys\/kernel\/core_pattern\u00bb), a cui non era stato bloccato l'accesso, nonostante non faccia parte dei parametri sicuri modificabili, che operano solo nello spazio dei nomi del contenitore corrente. Utilizzando questo parametro, un utente dal contenitore pu\u00f2 modificare il comportamento del kernel Linux nella gestione dei file di core nell'ambiente host e avviare un comando arbitrario con diritti di root sul lato host, specificando un gestore di tipo \u00ab|\/bin\/sh -c 'comandi'\u00bb. <\/p>\n

Il problema si manifesta a partire dal rilascio di CRI-O 1.19.0 ed \u00e8 stato risolto negli aggiornamenti 1.19.6, 1.20.7, 1.21.6, 1.22.3, 1.23.2 e 1.24.0. Nei distribuzioni, il problema si manifesta nei prodotti Red Hat OpenShift Container Platform e openSUSE\/SUSE, nei cui repository \u00e8 disponibile il pacchetto cri-o.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 CRI-O, runtime \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430\u043c\u0438, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-0811), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0431\u043e\u0439\u0442\u0438 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u0432\u043e\u0439 \u043a\u043e\u0434 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0445\u043e\u0441\u0442-\u0441\u0438\u0441\u0442\u0435\u043c\u044b. \u0412 \u0441\u043b\u0443\u0447\u0430\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f CRI-O 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\u043f\u0440\u0430\u0432 \u0434\u043b\u044f \u0437\u0430\u043f\u0443\u0441\u043a\u0430 […]<\/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-103581","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\udd47Vulnerabilit\u00e0 in CRI-O che consente di ottenere accesso root all'ambiente host | ProHoster","description":"In CRI-O, il runtime per la gestione di container isolati, \u00e8 stata identificata una vulnerabilit\u00e0 critica (CVE-2022-0811) che consente di eludere l'isolamento ed eseguire codice sulla side del sistema 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