{"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\/pt\/blog\/news\/lets-encrypt-otzyvaet-2-mln-sertifikatov-iz-za-problem-v-realizaczii-tls-alpn-01","title":{"rendered":"Let&apos;s Encrypt revoga 2 milh\u00f5es de certificados devido a problemas na implementa\u00e7\u00e3o do TLS-ALPN-01","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A autoridade certificadora sem fins lucrativos Let's Encrypt, controlada pela comunidade e que oferece certificados gratuitamente a todos que solicitam, anunciou a revoga\u00e7\u00e3o antecipada de cerca de dois milh\u00f5es de certificados TLS, representando cerca de 1% de todos os certificados ativos dessa autoridade certificadora. A revoga\u00e7\u00e3o dos certificados foi iniciada devido \u00e0 identifica\u00e7\u00e3o de n\u00e3o conformidades com os requisitos da especifica\u00e7\u00e3o no c\u00f3digo utilizado pelo Let's Encrypt em rela\u00e7\u00e3o \u00e0 implementa\u00e7\u00e3o da extens\u00e3o TLS-ALPN-01 (RFC 7301, Negocia\u00e7\u00e3o de Protoc\u00f3lo de Camada de Aplica\u00e7\u00e3o). A n\u00e3o conformidade estava relacionada \u00e0 aus\u00eancia de algumas verifica\u00e7\u00f5es realizadas durante o processo de negocia\u00e7\u00e3o de conex\u00f5es com base na extens\u00e3o ALPN do TLS, utilizada no HTTP\/2. Informa\u00e7\u00f5es detalhadas sobre o incidente ser\u00e3o publicadas ap\u00f3s a conclus\u00e3o da revoga\u00e7\u00e3o dos certificados problem\u00e1ticos.      <\/p>\n<p>Em 26 de janeiro \u00e0s 03:48 (MSK), o problema foi resolvido, mas todos os certificados que foram emitidos utilizando o m\u00e9todo TLS-ALPN-01 para verifica\u00e7\u00e3o foram considerados inv\u00e1lidos. A revoga\u00e7\u00e3o dos certificados come\u00e7ar\u00e1 em 28 de janeiro \u00e0s 19:00 (MSK). At\u00e9 esse momento, recomenda-se aos usu\u00e1rios que utilizam o m\u00e9todo de verifica\u00e7\u00e3o TLS-ALPN-01 que atualizem seus certificados, caso contr\u00e1rio, eles ser\u00e3o reconhecidos como inv\u00e1lidos antecipadamente.      <\/p>\n<p>Notifica\u00e7\u00f5es correspondentes sobre a necessidade de atualiza\u00e7\u00e3o dos certificados foram enviadas por e-mail. Os usu\u00e1rios que utilizam as ferramentas Certbot e dehydrated para obter o certificado, utilizando configura\u00e7\u00f5es padr\u00e3o, n\u00e3o foram afetados. O m\u00e9todo TLS-ALPN-01 \u00e9 suportado nos pacotes Caddy, Traefik, apache mod_md e autocert. \u00c9 poss\u00edvel verificar a validade dos seus certificados atrav\u00e9s da busca por identificadores, n\u00fameros de s\u00e9rie ou <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/domain\/\"   title=\"dom\u00ednios\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3171\">dom\u00ednios<\/a> na lista de certificados problem\u00e1ticos.    <\/p>\n<p>Como as mudan\u00e7as afetam o comportamento durante a verifica\u00e7\u00e3o pelo m\u00e9todo TLS-ALPN-01, pode ser necess\u00e1rio atualizar o cliente ACME ou alterar as configura\u00e7\u00f5es (Caddy, bitnami\/bn-cert, autocert, apache mod_md, Traefik). As altera\u00e7\u00f5es consistem em exigir vers\u00f5es do TLS n\u00e3o inferiores a 1.2 (os clientes n\u00e3o poder\u00e3o mais usar o TLS 1.1) e encerramento do suporte ao OID 1.3.6.1.5.5.7.1.30.1, que identifica a extens\u00e3o obsoleta acmeIdentifier, suportada apenas em rascunhos anteriores da especifica\u00e7\u00e3o RFC 8737 (agora, na emiss\u00e3o de certificados, apenas OID 1.3.6.1.5.5.7.1.31 \u00e9 permitido, e clientes que utilizam OID 1.3.6.1.5.5.7.1.30.1 n\u00e3o conseguir\u00e3o obter um certificado).<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56588\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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&#8217;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&#8217;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). [&hellip;]<\/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-103111","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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&#039;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 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