Spole\u010dnost Cloudflare, poskytuj\u00edc\u00ed s\u00ed\u0165 pro doru\u010dov\u00e1n\u00ed obsahu, kter\u00e1 zpracov\u00e1v\u00e1 p\u0159ibli\u017en\u011b 20 % internetov\u00e9ho provozu, zve\u0159ejnila zpr\u00e1vu o hacknut\u00ed jednoho ze server\u016f ve sv\u00e9 infrastruktu\u0159e, na kter\u00e9m fungoval intern\u00ed wiki web postaven\u00fd na platform\u011b Atlassian Confluence, syst\u00e9m sledov\u00e1n\u00ed chyb Atlassian Jira a syst\u00e9m spr\u00e1vy k\u00f3du Bitbucket. Vy\u0161et\u0159ov\u00e1n\u00ed uk\u00e1zalo, \u017ee \u00fato\u010dn\u00edk se dostal na server vyu\u017eit\u00edm token\u016f z\u00edskan\u00fdch b\u011bhem \u0159\u00edjnov\u00e9ho hacknut\u00ed spole\u010dnosti Okta, kter\u00e9 vedlo k \u00faniku p\u0159\u00edstupov\u00fdch token\u016f. <\/p>\n
Po zve\u0159ejn\u011bn\u00ed informac\u00ed o hacknut\u00ed Okta na podzim, spole\u010dnost Cloudflare zah\u00e1jila proces aktualizac\u00ed p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f, kl\u00ed\u010d\u016f a token\u016f pou\u017e\u00edvan\u00fdch p\u0159es slu\u017eby Okta. Jak se v\u0161ak uk\u00e1zalo, jeden token a t\u0159i \u00fa\u010dty (ze stovek tis\u00edc), kter\u00e9 byly kompromitov\u00e1ny v d\u016fsledku hacknut\u00ed Okta, nebyly vym\u011bn\u011bny a pokra\u010dovaly v platnosti, co\u017e \u00fato\u010dn\u00edkovi usnadnilo p\u0159\u00edstup. Tyto p\u0159ihla\u0161ovac\u00ed \u00fadaje byly pova\u017eov\u00e1ny za nevyu\u017e\u00edvan\u00e9, ale ve skute\u010dnosti poskytovaly p\u0159\u00edstup na platformu Atlassian, syst\u00e9m spr\u00e1vy k\u00f3du Bitbucket, SaaS aplikaci s administr\u00e1torsk\u00fdm p\u0159\u00edstupem k prost\u0159ed\u00ed Atlassian Jira a prost\u0159ed\u00ed v AWS, kter\u00e9 spravovalo katalog Cloudflare Apps, ale nem\u011blo p\u0159\u00edstup k infrastruktu\u0159e CDN a neuchov\u00e1valo \u017e\u00e1dn\u00e9 citliv\u00e9 \u00fadaje. <\/p>\n
Incident neovlivnil data a syst\u00e9my u\u017eivatel\u016f Cloudflare. Proveden\u00e1 audit uk\u00e1zala, \u017ee \u00fatok byl omezen na syst\u00e9my s produkty Atlassian a ne\u0161\u00ed\u0159il se d\u00e1l. servery<\/a>, d\u00edky aplikaci modelu s nulov\u00fdm d\u016fv\u011brou (Zero Trust) a izolaci \u010d\u00e1st\u00ed infrastruktury v Cloudflare. <\/p>\n Hack serveru Cloudflare byl odhalen 23. listopadu, a prvn\u00ed stopy neopr\u00e1vn\u011bn\u00e9ho p\u0159\u00edstupu na wiki a syst\u00e9m sledov\u00e1n\u00ed chyb byly zaznamen\u00e1ny 14. listopadu. Dne 22. listopadu \u00fato\u010dn\u00edk nainstaloval zadn\u00ed vr\u00e1tka pro trval\u00fd p\u0159\u00edstup, kter\u00e1 byla vytvo\u0159ena pomoc\u00ed ScriptRunner pro Jira. T\u00e9ho\u017e dne \u00fato\u010dn\u00edk z\u00edskal p\u0159\u00edstup k syst\u00e9mu spr\u00e1vy zdrojov\u00fdch k\u00f3d\u016f, ve kter\u00e9m byla pou\u017e\u00edv\u00e1na platforma Atlassian Bitbucket. Pot\u00e9 byli podniknuty pokusy o p\u0159ipojen\u00ed k konzolov\u00e9mu serveru<\/a>, pou\u017e\u00edvan\u00e9mu pro p\u0159\u00edstup k je\u0161t\u011b neotev\u0159en\u00e9mu datov\u00e9mu centru v Braz\u00edlii, ale v\u0161echny pokusy o p\u0159ipojen\u00ed byly ne\u00fasp\u011b\u0161n\u00e9. <\/p>\n Podle v\u0161eho se aktivita \u00fato\u010dn\u00edka omezila na prozkoum\u00e1n\u00ed architektury s\u00edt\u011b pro doru\u010dov\u00e1n\u00ed obsahu a hled\u00e1n\u00ed slab\u00fdch m\u00edst. B\u011bhem sv\u00e9 \u010dinnosti \u00fato\u010dn\u00edk vyu\u017eil vyhled\u00e1v\u00e1n\u00ed na wikipedii podle kl\u00ed\u010dov\u00fdch slov souvisej\u00edc\u00edch s vzd\u00e1len\u00fdm p\u0159\u00edstupem, tajemstv\u00edmi, openconnect, cloudflared a tokeny. Bylo zaznamen\u00e1no otev\u0159en\u00ed 202 wiki-str\u00e1nek (z 194100) a 36 zpr\u00e1v o probl\u00e9mech (z 2059357), kter\u00e9 se t\u00fdkaly spr\u00e1vy odstran\u011bn\u00ed zranitelnost\u00ed a rotace kl\u00ed\u010d\u016f. Bylo tak\u00e9 zji\u0161t\u011bno sta\u017een\u00ed 120 repozit\u00e1\u0159\u016f s k\u00f3dem (z 11904), z nich\u017e v\u011bt\u0161ina se t\u00fdk\u00e1 z\u00e1lohov\u00e1n\u00ed, nastaven\u00ed a spr\u00e1vy CDN, syst\u00e9m\u016f identifikace, vzd\u00e1len\u00e9ho p\u0159\u00edstupu a vyu\u017eit\u00ed platforem Terraform a Kubernetes. V n\u011bkter\u00fdch z repozit\u00e1\u0159\u016f byly ponech\u00e1ny v k\u00f3du za\u0161ifrovan\u00e9 kl\u00ed\u010de, kter\u00e9 byly vym\u011bn\u011bny ihned po incidentu, p\u0159esto\u017ee byly pou\u017eity spolehliv\u00e9 metody \u0161ifrov\u00e1n\u00ed. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u0441\u0435\u0442\u044c \u0434\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u0430, \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0443\u044e \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e 20% \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442-\u0442\u0440\u0430\u0444\u0438\u043a\u0430, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043e\u0442\u0447\u0451\u0442 \u043e \u0432\u0437\u043b\u043e\u043c\u0435 \u043e\u0434\u043d\u043e\u0433\u043e \u0438\u0437 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432 \u0432 \u0441\u0432\u043e\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043b \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439 wiki-\u0441\u0430\u0439\u0442 \u043d\u0430 \u0431\u0430\u0437\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Atlassian Confluence, \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u043e\u0448\u0438\u0431\u043e\u043a Atlassian Jira \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u043e\u043c Bitbucket. \u0420\u0430\u0437\u0431\u043e\u0440 \u043f\u043e\u043a\u0430\u0437\u0430\u043b, \u0447\u0442\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u0441\u043c\u043e\u0433 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0441\u0435\u0440\u0432\u0435\u0440\u0443, \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0432\u0448\u0438\u0441\u044c \u0442\u043e\u043a\u0435\u043d\u0430\u043c\u0438, \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u043d\u044b\u043c\u0438 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043e\u043a\u0442\u044f\u0431\u0440\u044c\u0441\u043a\u043e\u0433\u043e […]<\/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-113361","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\udd47Spole\u010dnost Cloudflare odhalila podrobnosti o prolomen\u00ed jednoho ze sv\u00fdch server\u016f | ProHoster","description":"Spole\u010dnost Cloudflare, poskytovatel s\u00edt\u011b pro doru\u010dov\u00e1n\u00ed obsahu, kter\u00fd obsluhuje p\u0159ibli\u017en\u011b 20 % internetov\u00e9ho provozu, zve\u0159ejnila zpr\u00e1vu o prolomen\u00ed jednoho z server\u016f ve sv\u00e9 infrastruktu\u0159e, na kter\u00e9m fungoval 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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"