{"id":103111,"date":"2022-01-27T15:36:56","date_gmt":"2022-01-27T13:36:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/lets-encrypt-otzyvaet-2-mln-sertifikatov-iz-za-problem-v-realizaczii-tls-alpn-01"},"modified":"2022-01-27T15:36:56","modified_gmt":"2022-01-27T13:36:56","slug":"lets-encrypt-otzyvaet-2-mln-sertifikatov-iz-za-problem-v-realizaczii-tls-alpn-01","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/lets-encrypt-otzyvaet-2-mln-sertifikatov-iz-za-problem-v-realizaczii-tls-alpn-01","title":{"rendered":"Let's Encrypt odvol\u00e1v\u00e1 2 miliony certifik\u00e1t\u016f kv\u016fli probl\u00e9m\u016fm s implementac\u00ed TLS-ALPN-01","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nekommer\u010dn\u00ed certifika\u010dn\u00ed autorita Let’s Encrypt, \u0159\u00edzen\u00e1 komunitou a poskytuj\u00edc\u00ed certifik\u00e1ty zdarma v\u0161em z\u00e1jemc\u016fm, ozn\u00e1mila p\u0159ed\u010dasn\u00e9 odvol\u00e1n\u00ed p\u0159ibli\u017en\u011b dvou milion\u016f TLS certifik\u00e1t\u016f, co\u017e p\u0159edstavuje p\u0159ibli\u017en\u011b 1 % ze v\u0161ech aktivn\u00edch certifik\u00e1t\u016f t\u00e9to certifika\u010dn\u00ed autority. Odvol\u00e1n\u00ed certifik\u00e1t\u016f bylo iniciov\u00e1no z d\u016fvodu zji\u0161t\u011bn\u00ed nesouladu s po\u017eadavky specifikace v pou\u017eit\u00e9m k\u00f3du Let’s Encrypt pro implementaci roz\u0161\u00ed\u0159en\u00ed TLS-ALPN-01 (RFC 7301, Application-Layer Protocol Negotiation). Nesoulad souvisel s absenc\u00ed n\u011bkter\u00fdch kontrol, prov\u00e1d\u011bn\u00fdch v procesu vyjedn\u00e1v\u00e1n\u00ed spojen\u00ed na z\u00e1klad\u011b roz\u0161\u00ed\u0159en\u00ed TLS ALPN, pou\u017e\u00edvaj\u00edc\u00edho se v HTTP\/2. Podrobn\u00e9 informace o incidentu budou publikov\u00e1ny po dokon\u010den\u00ed odvol\u00e1n\u00ed problematick\u00fdch certifik\u00e1t\u016f. <\/p>\n

26. ledna v 03:48 (MSK) byla probl\u00e9m vy\u0159e\u0161ena, ale v\u0161echny certifik\u00e1ty, u kter\u00fdch byl p\u0159i vyd\u00e1n\u00ed pou\u017eit metoda TLS-ALPN-01 pro ov\u011b\u0159en\u00ed, byly uzn\u00e1ny za neplatn\u00e9. Odvol\u00e1n\u00ed certifik\u00e1t\u016f za\u010dne 28. ledna v 19:00 (MSK). Do t\u00e9 doby se doporu\u010duje u\u017eivatel\u016fm, kte\u0159\u00ed pou\u017e\u00edvaj\u00ed metodu ov\u011b\u0159en\u00ed TLS-ALPN-01, aby si aktualizovali sv\u00e9 certifik\u00e1ty, jinak budou p\u0159ed\u010dasn\u011b uzn\u00e1ny za neplatn\u00e9. <\/p>\n

Odpov\u00eddaj\u00edc\u00ed ozn\u00e1men\u00ed o nutnosti aktualizace certifik\u00e1t\u016f byla odesl\u00e1na na email. U\u017eivatel\u00e9, kte\u0159\u00ed pou\u017e\u00edvaj\u00ed pro z\u00edsk\u00e1n\u00ed certifik\u00e1tu n\u00e1stroje Certbot a dehydrated, a to p\u0159i pou\u017eit\u00ed v\u00fdchoz\u00edch nastaven\u00ed, se s probl\u00e9mem nesetk\u00e1vali. Metoda TLS-ALPN-01 je podporov\u00e1na v bal\u00ed\u010dc\u00edch Caddy, Traefik, apache mod_md a autocert. Spr\u00e1vnost sv\u00fdch certifik\u00e1t\u016f lze ov\u011b\u0159it prost\u0159ednictv\u00edm hled\u00e1n\u00ed identifik\u00e1tor\u016f, s\u00e9riov\u00fdch \u010d\u00edsel nebo dom\u00e9n.<\/a> v seznamu probl\u00e9mov\u00fdch certifik\u00e1t\u016f. <\/p>\n

Vzhledem k tomu, \u017ee zm\u011bny ovliv\u0148uj\u00ed chov\u00e1n\u00ed p\u0159i kontrole pomoc\u00ed metody TLS-ALPN-01, m\u016f\u017ee b\u00fdt pro pokra\u010dov\u00e1n\u00ed v pr\u00e1ci nezbytn\u00e1 aktualizace ACME klienta nebo zm\u011bna nastaven\u00ed (Caddy, bitnami\/bn-cert, autocert, apache mod_md, Traefik). Zm\u011bny znamenaj\u00ed pou\u017e\u00edv\u00e1n\u00ed verz\u00ed TLS alespo\u0148 1.2 (klienti ji\u017e nebudou moci pou\u017e\u00edvat TLS 1.1) a ukon\u010den\u00ed podpory OID 1.3.6.1.5.5.7.1.30.1, kter\u00e9 identifikuje zastaral\u00e9 roz\u0161\u00ed\u0159en\u00ed acmeIdentifier, podporovan\u00e9 pouze v ran\u00fdch n\u00e1vrz\u00edch specifikace RFC 8737 (p\u0159i vytv\u00e1\u0159en\u00ed certifik\u00e1tu je nyn\u00ed p\u0159ijateln\u00e9 pouze OID 1.3.6.1.5.5.7.1.31, a klienti pou\u017e\u00edvaj\u00edc\u00ed OID 1.3.6.1.5.5.7.1.30.1 nebudou moci z\u00edskat certifik\u00e1t).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041d\u0435\u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0438\u0439 \u0446\u0435\u043d\u0442\u0440 Let’s Encrypt, \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e\u043c \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b \u0431\u0435\u0437\u0432\u043e\u0437\u043c\u0435\u0437\u0434\u043d\u043e \u0432\u0441\u0435\u043c \u0436\u0435\u043b\u0430\u044e\u0449\u0438\u043c, \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u0434\u043e\u0441\u0440\u043e\u0447\u043d\u043e\u043c \u043e\u0442\u0437\u044b\u0432\u0435 \u043e\u043a\u043e\u043b\u043e \u0434\u0432\u0443\u0445 \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u043e\u0432 TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432, \u0447\u0442\u043e \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043e\u043a\u043e\u043b\u043e 1% \u043e\u0442 \u0432\u0441\u0435\u0445 \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0435\u0433\u043e \u0446\u0435\u043d\u0442\u0440\u0430. \u041e\u0442\u0437\u044b\u0432 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0438\u043d\u0438\u0446\u0438\u0438\u0440\u043e\u0432\u0430\u043d \u0438\u0437-\u0437\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0435\u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u044f \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0432 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0432 Let’s Encrypt \u043a\u043e\u0434\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f TLS-ALPN-01 (RFC 7301, Application-Layer Protocol Negotiation). 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