{"id":111332,"date":"2023-11-06T09:10:14","date_gmt":"2023-11-06T07:10:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-ingress-nginx-pozvolyayushhie-skomprometirovat-klastery-kubernetes"},"modified":"2023-11-06T09:10:14","modified_gmt":"2023-11-06T07:10:14","slug":"uyazvimosti-v-ingress-nginx-pozvolyayushhie-skomprometirovat-klastery-kubernetes","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimosti-v-ingress-nginx-pozvolyayushhie-skomprometirovat-klastery-kubernetes","title":{"rendered":"Sisenevate nginx-i haavatavused, mis v\u00f5ivad kompromiteerida Kubernetes klastreid","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kubernetes ingress-kontrolleri ingress-nginx projektis on avastatud kolm haavatavust, mis v\u00f5imaldavad vaikeseadistuses p\u00e4\u00e4seda Ingress objekti seadistustele, kus hulgas on ka Kubernetes'i serveritega suhtlemiseks vajalikud mandaadid, mis annavad privileege klastrile juurdep\u00e4\u00e4suks. Probleemid esinevad ainult ingress-nginx ingress-kontrolleris ja ei m\u00f5juta kubernetes-ingress kontrollerit, mille arendavad NGINX'i arendajad. <\/p>\n

Ingress-kontroller toimib v\u00e4ravana ja kasutatakse Kuberneteses, et korraldada juurdep\u00e4\u00e4su v\u00e4lisest v\u00f5rgust klastris olevatele teenustele. Kontroller ingress-nginx on k\u00f5ige populaarsem ja rakendab server<\/a> NGINX mobiilse \u00fchenduse korraldamiseks klastriga, v\u00e4liste p\u00e4ringute edastamiseks ja koormuse tasakaalu saavutamiseks. Kubernetes'i projekt pakub p\u00f5hi ingress-kontrollereid AWS, GCE ja nginx jaoks, millest viimane ei ole seotud kubernetes-ingress kontrolleriga, mille haldusega tegeleb F5\/NGINX.

\"Sisenevate<\/center> <\/p>\n

Haavatavused CVE-2023-5043 ja CVE-2023-5044 v\u00f5imaldavad sooritada oma koodi serveril<\/a> ingress-kontrolleri \u00f5igustega, kasutades selle asendamiseks parameetreid «nginx.ingress.kubernetes.io\/configuration-snippet» ja «nginx.ingress.kubernetes.io\/permanent-redirect. Muuhulgas v\u00f5imaldavad saadud ligip\u00e4\u00e4s\u00f5igused v\u00e4lja v\u00f5tta tokenit, mida kasutatakse klastrihalduse autentimiseks. Vulnerability CVE-2022-4886 v\u00f5imaldab m\u00f6\u00f6da minna failide tee kontrollist, kasutades direktiivi log_format. <\/p>\n

Kaks esimest haavatavust ilmnevad ainult ingress-nginx versioonides enne 1.9.0, ja viimane — enne versiooni 1.8.0. R\u00fcnnaku teostamiseks peab r\u00fcndaja omama ligip\u00e4\u00e4su ingress-objekti konfiguratsioonile, n\u00e4iteks Kubernetes'i mitme kasutaja klastrites, kus kasutajatele antakse v\u00f5imalus luua objekte oma nimede ruumis.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c Kubernetes ingress-\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0435 ingress-nginx \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0442\u0440\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u043c \u043e\u0431\u044a\u0435\u043a\u0442\u0430 Ingress, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445, \u0441\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0435\u0433\u043e, \u0445\u0440\u0430\u043d\u044f\u0442\u0441\u044f \u0438 \u0443\u0447\u0451\u0442\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c Kubernetes, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u0443. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 ingress-\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u0435 ingress-nginx \u043e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Kubernetes \u0438 \u043d\u0435 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440 kubernetes-ingress, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":111333,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-111332","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"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\udd47Haavatavused ingress-nginx'is, mis v\u00f5imaldavad kompromiteerida Kubernetes'i klasse | ProHoster","description":"Kubernetes ingress-kontrolleri ingress-nginx projektis on avastatud kolm haavatavust, mis v\u00f5imaldavad vaikeseadistuses p\u00e4\u00e4seda Ingress objekti seadistustele, kus hulgas on ka Kubernetes'i serveritega suhtlemiseks vajalikud mandaadid, mis annavad privileege klastrile juurdep\u00e4\u00e4suks. Probleemid esinevad ainult ingress-nginx ingress-kontrolleris ja ei m\u00f5juta kubernetes-ingress kontrollerit, mille arendavad","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimosti-v-ingress-nginx-pozvolyayushhie-skomprometirovat-klastery-kubernetes","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 ingress-nginx, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 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