{"id":72877,"date":"2020-03-05T08:42:10","date_gmt":"2020-03-05T05:42:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/letsencrypt-planiruet-otozvat-svoi-sertifikaty-iz-za-programmnoj-oshibki"},"modified":"2020-03-05T08:42:10","modified_gmt":"2020-03-05T05:42:10","slug":"letsencrypt-planiruet-otozvat-svoi-sertifikaty-iz-za-programmnoj-oshibki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/administrirovanie\/letsencrypt-planiruet-otozvat-svoi-sertifikaty-iz-za-programmnoj-oshibki","title":{"rendered":"LetsEncrypt plant, seine Zertifikate aufgrund eines Softwarefehlers zur\u00fcckzuziehen.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"LetsEncrypt plant, seine Zertifikate aufgrund eines Softwarefehlers zur\u00fcckzuziehen.\" src=\"\/wp-content\/uploads\/2020\/03\/b954f1ddd1b367591a9548984f21cfbb.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nDas Unternehmen LetsEncrypt, das kostenlose SSL-Zertifikate zur Verschl\u00fcsselung anbietet, sieht sich gezwungen, einige Zertifikate zu widerrufen.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Das Problem h\u00e4ngt mit <noindex><a rel=\"nofollow\" href=\"https:\/\/community.letsencrypt.org\/t\/2020-02-29-caa-rechecking-bug\/114591\">einem Softwarefehler<\/a><\/noindex> in der Verwaltungssoftware Boulder zusammen, die zur Einrichtung der CA verwendet wird. Normalerweise erfolgt die \u00dcberpr\u00fcfung des DNS CAA-Eintrags gleichzeitig mit der Best\u00e4tigung des Domainbesitzes, und die meisten Abonnenten erhalten das Zertifikat direkt nach der \u00dcberpr\u00fcfung. Die Softwareentwickler haben jedoch daf\u00fcr gesorgt, dass das Ergebnis der \u00dcberpr\u00fcfung noch in den folgenden 30 Tagen als bestanden angesehen wird. In einigen F\u00e4llen kann die \u00dcberpr\u00fcfung kurz vor der Ausstellung des Zertifikats ein zweites Mal erfolgen; insbesondere muss die CAA-\u00dcberpr\u00fcfung innerhalb von 8 Stunden vor der Ausstellung durchgef\u00fchrt werden, sodass jede Domain, die vor dieser Frist \u00fcberpr\u00fcft wurde, erneut \u00fcberpr\u00fcft werden muss.<\/p>\n<p><\/p>\n<p>Worin besteht der Fehler? Wenn der Zertifikatsantrag N Domains enth\u00e4lt, die eine erneute CAA-\u00dcberpr\u00fcfung ben\u00f6tigen, w\u00e4hlte Boulder eine davon und \u00fcberpr\u00fcfte sie N-mal. Infolgedessen bestand die M\u00f6glichkeit, ein Zertifikat auszustellen, selbst wenn sp\u00e4ter (bis X+30 Tage) ein CAA-Eintrag gesetzt wurde, der die Ausstellung des LetsEncrypt-Zertifikats verbot.<\/p>\n<p><\/p>\n<p>Zur \u00dcberpr\u00fcfung der Zertifikate hat das Unternehmen <noindex><a rel=\"nofollow\" href=\"https:\/\/unboundtest.com\/caaproblem.html\">ein Online-Tool<\/a><\/noindex>, das einen detaillierten Bericht anzeigt.<\/p>\n<p><\/p>\n<p>Erfahrene Benutzer k\u00f6nnen alles selbst tun und die folgenden Befehle verwenden:<\/p>\n<p><\/p>\n<pre><code class=\"plaintext\"># \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 https\nopenssl s_client -connect example.com:443 -showcerts &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -text -noout | grep -A 1 Serial Number | tr -d :\n# \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043e\u0442 @simpleadmin \necho | openssl s_client -connect example.com:443 |&amp; openssl x509 -noout -serial\n# \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b SMTP\nopenssl s_client -connect example.com:25 -starttls smtp -showcerts &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -text -noout | grep -A 1 Serial Number | tr -d :\n# \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b SMTP\nopenssl s_client -connect example.com:587 -starttls smtp -showcerts &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -text -noout | grep -A 1 Serial Number | tr -d :\n# \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b IMAP\nopenssl s_client -connect example.com:143 -starttls imap -showcerts &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -text -noout | grep -A 1 Serial Number | tr -d :\n# \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b IMAP\nopenssl s_client -connect example.com:993 -showcerts &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -text -noout | grep -A 1 Serial Number | tr -d :\n# \u0432 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0435 \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u044e\u0442\u0441\u044f \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0441\u0435\u0440\u0432\u0438\u0441\u044b<\/code><\/pre>\n<p><\/p>\n<p>Danach sollten Sie <noindex><a rel=\"nofollow\" href=\"https:\/\/letsencrypt.org\/caaproblem\/\">hier<\/a><\/noindex> Ihre Seriennummer \u00fcberpr\u00fcfen, und wenn sie in der Liste steht, wird empfohlen, die Zertifikate zu aktualisieren.<\/p>\n<p><\/p>\n<p>Zum Aktualisieren der Zertifikate k\u00f6nnen Sie Certbot verwenden:<\/p>\n<p><\/p>\n<pre><code class=\"plaintext\">certbot renew --force-renewal<\/code><\/pre>\n<p><\/p>\n<p>Das Problem wurde bereits am 29. Februar 2020 festgestellt, um das Problem zu l\u00f6sen, wurde die Ausstellung von Zertifikaten von 3:10 UTC bis 5:22 UTC ausgesetzt. Laut interner Untersuchung wurde der Fehler am 25. Juli 2019 eingef\u00fchrt; ein detaillierter Bericht wird sp\u00e4ter ver\u00f6ffentlicht.<\/p>\n<p><\/p>\n<p>UPD: Der Online-Zertifikatpr\u00fcfungsdienst funktioniert m\u00f6glicherweise nicht von russischen IP-Adressen aus.<\/p>\n<p>Quelle: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/490862\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f LetsEncrypt, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0430\u044f \u043a \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044e \u0431\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u044b\u0435 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b ssl \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0432\u044b\u043d\u0443\u0436\u0434\u0435\u043d\u0430 \u0430\u043d\u043d\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0439 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u0432 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u043c \u041f\u041e Boulder, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f CA. \u041e\u0431\u044b\u0447\u043d\u043e \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 DNS \u0437\u0430\u043f\u0438\u0441\u0438 CAA \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0441 \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u0432\u043b\u0430\u0434\u0435\u043d\u0438\u044f \u0434\u043e\u043c\u0435\u043d\u043e\u043c, \u0430 \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u043f\u043e\u0434\u043f\u0438\u0441\u0447\u0438\u043a\u043e\u0432 \u043f\u043e\u043b\u0443\u0447\u0430\u044e\u0442 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 \u0441\u0440\u0430\u0437\u0443 \u0436\u0435 \u043f\u043e\u0441\u043b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, \u043d\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u041f\u041e \u0441\u0434\u0435\u043b\u0430\u043b\u0438 \u0442\u0430\u043a, \u0447\u0442\u043e \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":72878,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-72877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/de\/blog\/administrirovanie\/letsencrypt-planiruet-otozvat-svoi-sertifikaty-iz-za-programmnoj-oshibki\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" 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