{"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\/sq\/blog\/news\/uyazvimosti-v-ingress-nginx-pozvolyayushhie-skomprometirovat-klastery-kubernetes","title":{"rendered":"Dob\u00ebsi n\u00eb ingress-nginx q\u00eb mund\u00ebsojn\u00eb kompromentimin e klaster\u00ebve Kubernetes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

N\u00eb ingress-controller ingress-nginx t\u00eb zhvilluar nga projekti Kubernetes jan\u00eb zbuluar tre cenueshm\u00ebri q\u00eb, n\u00eb konfigurimin e parazgjedhur, lejojn\u00eb qasje te cil\u00ebsimet e objektit Ingress, ku nd\u00ebr t\u00eb tjera ruhen edhe t\u00eb dh\u00ebnat kredenciale p\u00ebr t'u lidhur me server\u00ebt Kubernetes, duke b\u00ebr\u00eb t\u00eb mundur marrjen e qasjes s\u00eb privilegjuar n\u00eb klaster. Problemet shfaqen vet\u00ebm n\u00eb ingress-controller ingress-nginx t\u00eb projektit Kubernetes dhe nuk prekin controller-in kubernetes-ingress, i cili zhvillohet nga zhvilluesit e NGINX. <\/p>\n

Ingress-controller vepron si nj\u00eb gateway dhe p\u00ebrdoret n\u00eb Kubernetes p\u00ebr t\u00eb organizuar qasjen nga rrjeti i jasht\u00ebm te sh\u00ebrbimet brenda klasterit. Controller-i ingress-nginx \u00ebsht\u00eb m\u00eb i p\u00ebrdoruri dhe p\u00ebrdor server<\/a> NGINX p\u00ebr t\u00eb organizuar p\u00ebrcjelljen e k\u00ebrkesave drejt klasterit, rutimin e k\u00ebrkesave t\u00eb jashtme dhe balancimin e ngarkes\u00ebs. Projekti Kubernetes ofron ingress-controller baz\u00eb p\u00ebr AWS, GCE dhe nginx, ku i fundit nuk ka asnj\u00eb lidhje me controller-in kubernetes-ingress, mir\u00ebmbajtja e t\u00eb cilit kryhet nga kompania F5\/NGINX.

\"Dob\u00ebsi<\/center> <\/p>\n

Cenueshm\u00ebrit\u00eb CVE-2023-5043 dhe CVE-2023-5044 lejojn\u00eb ekzekutimin e kodit t\u00eb vet n\u00eb server<\/a> me autorizacione procesi i ingress-controller, duke p\u00ebrdorur p\u00ebr t\u00eb z\u00ebvend\u00ebsuar parametrat «nginx.ingress.kubernetes.io\/configuration-snippet» dhe «nginx.ingress.kubernetes.io\/permanent-redirect. Nd\u00ebr t\u00eb tjera, t\u00eb drejtat e marra lejojn\u00eb nxjerrjen e nj\u00eb tokeni t\u00eb p\u00ebrdorur p\u00ebr autentifikim n\u00eb nivelin e menaxhimit t\u00eb klasterit. Vulnerabiliteti CVE-2022-4886 lejon evazionin e kontrollit t\u00eb shtigjeve t\u00eb skedar\u00ebve, duke p\u00ebrdorur direktiv\u00ebn log_format. <\/p>\n

Dy vulnerabilitetet e para shfaqen vet\u00ebm n\u00eb versionet ingress-nginx deri n\u00eb versionin 1.9.0, nd\u00ebrsa i fundit \u2014 deri n\u00eb versionin 1.8.0. P\u00ebr t\u00eb kryer nj\u00eb sulm, sulmuesi duhet t\u00eb ket\u00eb akses n\u00eb konfigurimin e objektit ingress, p\u00ebr shembull, n\u00eb klaster\u00ebt Kubernetes me shum\u00eb p\u00ebrdorues, ku p\u00ebrdoruesve u jepet mund\u00ebsia p\u00ebr t\u00eb krijuar objekte n\u00eb hap\u00ebsir\u00ebn e tyre emri.
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\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, 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