{"id":33301,"date":"2019-10-31T21:51:51","date_gmt":"2019-10-31T18:51:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root\/"},"modified":"2019-10-31T21:51:51","modified_gmt":"2019-10-31T18:51:51","slug":"docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/docker-obrazy-alpine-postavlyalis-s-pustym-parolem-polzovatelya-root","title":{"rendered":"Docker-Images von Alpine wurden mit einem leeren Passwort f\u00fcr den Benutzer root geliefert.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sicherheitsforscher von Cisco <noindex><a rel=\"nofollow\" href=\"https:\/\/talosintelligence.com\/vulnerability_reports\/TALOS-2019-0782\">haben aufgedeckt<\/a><\/noindex> Information zur Schwachstelle (CVE-2019-5021) in <noindex><a rel=\"nofollow\" href=\"https:\/\/hub.docker.com\/_\/alpine\">Builds<\/a><\/noindex> der Alpine-Distribution f\u00fcr das Containerisierungsystem Docker. Das Wesen des festgestellten Problems ist, dass f\u00fcr den Benutzer root standardm\u00e4\u00dfig ein leerer Passwort gesetzt wurde, ohne dass der direkte Zugang unter root blockiert wurde. Zur Erinnerung: Alpine wird verwendet, um offizielle Images f\u00fcr das Docker-Projekt zu erstellen (fr\u00fcher basierten die offiziellen Builds auf Ubuntu, wurden aber dann <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=43828\">bereits<\/a><\/noindex> auf Alpine).<\/p>\n<p>Das Problem tritt seit der Alpine Docker Version 3.3 auf und wurde durch eine r\u00fcckl\u00e4ufige \u00c4nderung verursacht, die 2015 hinzugef\u00fcgt wurde (vor Version 3.3 wurde in \/etc\/shadow die Zeile \u201eroot:!::0:::::\u201c verwendet, und danach wurde aufgrund der Einstellung des Flags \u201e-d\u201c die Zeile \u201eroot:::0:::::\u201c hinzugef\u00fcgt). Das Problem wurde urspr\u00fcnglich identifiziert und <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/gliderlabs\/docker-alpine\/commit\/8b9abf92b9960b7153b93268580099f34ef20f69\">21. November<\/a><\/noindex> im November 2015, jedoch wurde es im Dezember versehentlich wieder <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/gliderlabs\/docker-alpine\/commit\/ab4337c595383afa0f792ff01d3f99bc6667c3a8#diff-fc53135be554a2608c163978ed2f710b\">tauchte<\/a><\/noindex> in die Build-Dateien des experimentellen Zweigs eingef\u00fchrt und wurde dann in die stabilen Builds \u00fcbertragen.<\/p>\n<p>In den Informationen zur Schwachstelle wird angegeben, dass das Problem auch in der letzten Version des Alpine Docker 3.9 auftritt. Die Entwickler von Alpine haben im M\u00e4rz <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/docker-library\/official-images\/pull\/5516\">wurde ver\u00f6ffentlicht<\/a><\/noindex> eine Behebung ver\u00f6ffentlicht, und die Schwachstelle <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/alpinelinux\/docker-alpine\/issues\/13\">tritt nicht auf<\/a><\/noindex> ab den Builds 3.9.2, 3.8.4, 3.7.3 und 3.6.5, bleibt jedoch in den \u00e4lteren Zweigen 3.4.x und 3.5.x vorhanden, deren Unterst\u00fctzung bereits eingestellt wurde. Au\u00dferdem behaupten die Entwickler, dass der Angriffsvektor stark eingeschr\u00e4nkt ist und den Angreifenden Zugang zur gleichen Infrastruktur erfordert.<\/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=50654\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Cisco \u0440\u0430\u0441\u043a\u0440\u044b\u043b\u0438 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e\u0431 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2019-5021) \u0432 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Alpine \u0434\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043d\u043e\u0439 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 Docker. \u0421\u0443\u0442\u044c \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u0434\u043b\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f root \u0431\u044b\u043b \u0437\u0430\u0434\u0430\u043d \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u0443\u0441\u0442\u043e\u0439 \u043f\u0430\u0440\u043e\u043b\u044c \u0431\u0435\u0437 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u043f\u0440\u044f\u043c\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0430 \u043f\u043e\u0434 root. \u041d\u0430\u043f\u043e\u043c\u043d\u0438\u043c, \u0447\u0442\u043e Alpine \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u043e\u0431\u0440\u0430\u0437\u043e\u0432 \u043e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Docker (\u0440\u0430\u043d\u044c\u0448\u0435 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 \u043e\u0441\u043d\u043e\u0432\u044b\u0432\u0430\u043b\u0438\u0441\u044c [&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-33301","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 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