{"id":87101,"date":"2020-07-03T19:42:00","date_gmt":"2020-07-03T17:42:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt"},"modified":"2020-07-03T19:42:00","modified_gmt":"2020-07-03T17:42:00","slug":"najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/najdena-prichina-problem-dehydrated-s-acme-serverami-otlichnymi-ot-letsencrypt","title":{"rendered":"Die Ursache der Probleme von dehydrated mit ACME-Servern, die nicht LetsEncrypt sind, wurde gefunden.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sebastian Krause <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/dehydrated-io\/dehydrated\/issues\/653#issuecomment-652015341\">bestimmte<\/a><\/noindex> die Quelle der seltsamen Inkompatibilit\u00e4t mit dem Service <noindex><a rel=\"nofollow\" href=\"https:\/\/www.buypass.com\/ssl\/products\/acme\">Bypass<\/a><\/noindex> des Skripts <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/dehydrated-io\/dehydrated\">dehydrated<\/a><\/noindex>, das zur Automatisierung der TLS-Zertifikatsanfrage \u00fcber das ACME-Protokoll verwendet wird. Bypass funktioniert sowohl mit dem Referenz-Client als auch mit uacme, aber nicht mit dehydrated (genauer gesagt, es hat auch mit einigen Umgehungsman\u00f6vern funktioniert, jedoch ausschlie\u00dflich im dns-1-Modus).<\/p>\n<p>Der Grund war banal: Anstatt die Antwort im JSON-Format tats\u00e4chlich zu analysieren, hat der Autor dehydrated eine Besonderheit der Formatierung eines bestimmten JSON-Ausgabeformats des Dienstes Let's Encrypt verwendet und die Analyse mit einem regul\u00e4ren Ausdruck durchgef\u00fchrt. Bypass hingegen gibt nicht sch\u00f6n formatierte, sondern komprimierte JSON zur\u00fcck, und das verwendete <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/dehydrated-io\/dehydrated\/blob\/dc552c602eca94737b66e62f4c4087a4e8f251e4\/dehydrated#L707\">regul\u00e4re Ausdruck<\/a><\/noindex> hat nicht funktioniert. Der angegebene Ansatz schlie\u00dft das Auftreten von Problemen mit LetsEncrypt nicht aus, falls dieser Service in Zukunft ohne Vorwarnung das Ausgabeformat \u00e4ndert und dabei weiterhin vollkommen im Rahmen des offiziellen Protokolls bleibt.<\/p>\n<p>Bei der Diskussion des Problems wurde vorgeschlagen, einen externen JSON-Parser zu verwenden, wie zum Beispiel <noindex><a rel=\"nofollow\" href=\"https:\/\/metacpan.org\/pod\/distribution\/JSON-PP\/bin\/json_pp\">json_pp<\/a><\/noindex> oder <noindex><a rel=\"nofollow\" href=\"https:\/\/stedolan.github.io\/jq\/\">jq<\/a><\/noindex> (f\u00fcge in die Pipe 'jq -r \" .authorizations | .[] \"' f\u00fcr die korrekte Analyse ein).<br \/>\nEin Nachteil dieses Ansatzes ist die Verw\u00e4sserung der Idee, mit minimalen und leicht verifizierbaren Mitteln auszukommen, sowie Probleme mit der Fehlerbehandlung.<\/p>\n<p>Der Autor des dehydrated-Projekts (das Projekt wurde k\u00fcrzlich <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52294\">verkauft<\/a><\/noindex> an Apilayer GmbH) <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/dehydrated-io\/dehydrated\/issues\/653#issuecomment-652569458\">stimmte zu<\/a><\/noindex>, was die JSON-Analyse zu einem gro\u00dfen Problem macht, aber er h\u00e4lt es nicht f\u00fcr eine gute Idee, externe Parser hinzuzuf\u00fcgen, da eines der Schl\u00fcsselmerkmale des Skripts die Unabh\u00e4ngigkeit von externen Abh\u00e4ngigkeiten ist. Er ist derzeit besch\u00e4ftigt, hofft jedoch, in den n\u00e4chsten Tagen Zeit zu finden, um das Problem zu l\u00f6sen. Geplant ist eine \u00dcberarbeitung des JSON-Parsers oder die Integration eines fertigen Parsers in Shell-Sprache \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/dominictarr\/JSON.sh\">JSON.sh<\/a><\/noindex>.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53279\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Sebastian Krause \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043b \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u0441\u0442\u0440\u0430\u043d\u043d\u043e\u0439 \u043d\u0435\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438 \u0441 \u0441\u0435\u0440\u0432\u0438\u0441\u043e\u043c Bypass \u0441\u043a\u0440\u0438\u043f\u0442\u0430 dehydrated, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 ACME. \u0421 Bypass \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0438 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u0439 \u043a\u043b\u0438\u0435\u043d\u0442, \u0438 uacme, \u043d\u043e \u043d\u0435 dehydrated (\u0442\u043e\u0447\u043d\u0435\u0435, \u043e\u043d \u0442\u043e\u0436\u0435 \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043e\u0431\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u043c\u0430\u043d\u0451\u0432\u0440\u0430\u043c\u0438 \u0437\u0430\u0440\u0430\u0431\u043e\u0442\u0430\u043b, \u043d\u043e \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 dns-1). \u041f\u0440\u0438\u0447\u0438\u043d\u0430 \u043e\u043a\u0430\u0437\u0430\u043b\u0430\u0441\u044c \u0431\u0430\u043d\u0430\u043b\u044c\u043d\u0430: \u0432\u043c\u0435\u0441\u0442\u043e \u0442\u043e\u0433\u043e \u0447\u0442\u043e\u0431\u044b \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0442\u044c \u043e\u0442\u0432\u0435\u0442 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 JSON \u043f\u043e [&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-87101","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Sebastian Krause 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