{"id":183672,"date":"2026-10-07T22:54:13","date_gmt":"2026-10-07T20:54:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/komprometacziya-registratorov-3-domennyh-zon-pozvolila-poluchit-tls-sertifikaty-k-servisam-google"},"modified":"2026-10-07T22:54:20","modified_gmt":"2026-10-07T20:54:20","slug":"compromise-of-registrars-for-three-domain-zones-enabled-tls-certificate-issuance-for-google-services","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/compromise-of-registrars-for-three-domain-zones-enabled-tls-certificate-issuance-for-google-services","title":{"rendered":"Komplikace registr\u00e1tor\u016f 3 dom\u00e9nov\u00fdch z\u00f3n umo\u017enila z\u00edsk\u00e1n\u00ed TLS certifik\u00e1t\u016f pro slu\u017eby Google.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Google ozn\u00e1mila incident, p\u0159i kter\u00e9m se \u00fato\u010dn\u00edk\u016fm poda\u0159ilo z\u00edskat TLS certifik\u00e1ty pro jednotliv\u00e9 dom\u00e9ny Google (nap\u0159\u00edklad google.as), online slu\u017eby a velk\u00e9 spole\u010dnosti v oblastech «.gh», «.sl» a «.as». \u00datok byl proveden prost\u0159ednictv\u00edm kompromitace registr\u00e1tor\u016f n\u00e1rodn\u00edch dom\u00e9nov\u00fdch z\u00f3n nejvy\u0161\u0161\u00ed \u00farovn\u011b \u2014 «.gh» (Ghana), «.sl» (Sierra Leone) a «.as» (Americk\u00e1 Samoa). To umo\u017enilo zm\u011bnit DNS servery pro dom\u00e9ny v t\u011bchto z\u00f3n\u00e1ch a p\u0159esm\u011brovat dotazy na servery \u00fato\u010dn\u00edk\u016f. P\u0159esm\u011brov\u00e1n\u00edm provozu \u00fato\u010dn\u00edci potvrdili vlastnictv\u00ed dom\u00e9n a z\u00edskali TLS certifik\u00e1ty, proto\u017ee po zm\u011bn\u011b \u00fadaj\u016f v DNS byly ov\u011b\u0159ovac\u00ed dotazy od certifika\u010dn\u00edch autorit zasl\u00e1ny nikoliv na skute\u010dn\u00e9, ale na podvr\u017een\u00e9 hostitele a zpracov\u00e1ny na nich. <\/p>\n

Nesankcionovan\u00e9 z\u00edsk\u00e1v\u00e1n\u00ed certifik\u00e1t\u016f bylo odhaleno na z\u00e1klad\u011b anal\u00fdzy protokol\u016f Certificate Transparency, ve kter\u00fdch certifika\u010dn\u00ed \u00fa\u0159ady zaznamen\u00e1vaj\u00ed v\u0161echny vydan\u00e9 a odvolan\u00e9 certifik\u00e1ty. Spole\u010dnost Google zablokovala certifik\u00e1ty z\u00edskan\u00e9 b\u011bhem \u00fatoku jako nelegitimn\u00ed pomoc\u00ed mechanismu CRLSets v prohl\u00ed\u017ee\u010di Chrome a tak\u00e9 dos\u00e1hla jejich odvol\u00e1n\u00ed certifika\u010dn\u00edmi \u00fa\u0159ady. Zat\u00edm nen\u00ed odhaleno, pro jak\u00e9 konkr\u00e9tn\u00ed dom\u00e9n.<\/a> byly vyd\u00e1ny podvodn\u00e9 certifik\u00e1ty a kter\u00e9 spole\u010dnosti utrp\u011bly \u0161kody v d\u016fsledku \u00fatoku. <\/p>\n

Pro minimalizaci rizik p\u0159i opakov\u00e1n\u00ed podobn\u00fdch incident\u016f se doporu\u010duje majitel\u016fm dom\u00e9n zorganizovat trval\u00fd monitoring ve\u0159ejn\u00fdch log\u016f CT (Certificate Transparency) pro odhalen\u00ed neopr\u00e1vn\u011bn\u00e9ho vyd\u00e1n\u00ed certifik\u00e1t\u016f. V DNS se doporu\u010duje p\u0159idat z\u00e1znamy CAA (Certification Authority Authorization), kter\u00e9 ur\u010duj\u00ed seznam certifika\u010dn\u00edch autorit, jim\u017e je povoleno vyd\u00e1vat certifik\u00e1ty pro uvedenou dom\u00e9nu. Vytvo\u0159en\u00ed DNS z\u00e1znamu CAA nechr\u00e1n\u00ed p\u0159ed \u017e\u00e1dost\u00ed o certifik\u00e1t po zm\u011bn\u011b DNS, ale po navr\u00e1cen\u00ed kontroly nad DNS zabr\u00e1n\u00ed op\u011btovn\u00e9mu vyd\u00e1n\u00ed certifik\u00e1t\u016f \u00fato\u010dn\u00edky p\u0159i pou\u017eit\u00ed ulo\u017een\u00fdch ov\u011b\u0159ovac\u00edch dat o vlastnictv\u00ed dom\u00e9ny.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430 \u043e\u0431 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0435, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b \u0434\u043b\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 Google (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, google.as), \u043e\u043d\u043b\u0430\u0439\u043d-\u0441\u0435\u0440\u0432\u0438\u0441\u043e\u0432 \u0438 \u043a\u0440\u0443\u043f\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 \u0432 \u0437\u043e\u043d\u0430\u0445 «.gh», «.sl» \u0438 «.as». \u0410\u0442\u0430\u043a\u0430 \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0430 \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0430\u0446\u0438\u044e \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u043e\u0432 \u043d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u0437\u043e\u043d \u0432\u0435\u0440\u0445\u043d\u0435\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f — «.gh» (\u0413\u0430\u043d\u0430), «.sl» (\u0421\u044c\u0435\u0440\u0440\u0430-\u041b\u0435\u043e\u043d\u0435) \u0438 «.as» (\u0410\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u043e\u0435 \u0421\u0430\u043c\u043e\u0430), \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u043b\u043e \u0437\u0430\u043c\u0435\u043d\u0438\u0442\u044c DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u044b \u0434\u043b\u044f \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0432 \u044d\u0442\u0438\u0445 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-183672","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\n","aioseo_head_json":{"title":"\ud83e\udd47Kompromitace registr\u00e1tor\u016f 3 dom\u00e9nov\u00fdch z\u00f3n umo\u017enila z\u00edskat TLS certifik\u00e1ty k slu\u017eb\u00e1m Google | ProHoster","description":"Spole\u010dnost Google ozn\u00e1mila incident, p\u0159i kter\u00e9m se \u00fato\u010dn\u00edk\u016fm poda\u0159ilo z\u00edskat TLS certifik\u00e1ty pro jednotliv\u00e9 dom\u00e9ny Google (nap\u0159\u00edklad google.as), online slu\u017eby a velk\u00e9 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