{"id":32870,"date":"2019-10-31T21:49:24","date_gmt":"2019-10-31T18:49:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kriticheskaya-uyazvimost-v-servise-librem-one-vyyavlennaya-v-den-ego-zapuska\/"},"modified":"2019-10-31T21:49:24","modified_gmt":"2019-10-31T18:49:24","slug":"kriticheskaya-uyazvimost-v-servise-librem-one-vyyavlennaya-v-den-ego-zapuska","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/kriticheskaya-uyazvimost-v-servise-librem-one-vyyavlennaya-v-den-ego-zapuska","title":{"rendered":"Eine kritische Schwachstelle im Dienst Librem One, die am Tag seiner Einf\u00fchrung entdeckt wurde","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Der Service Librem One, der f\u00fcr die Nutzung auf Smartphones ausgelegt ist, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47358\">Librem 5<\/a><\/noindex>, direkt nach <noindex><a rel=\"nofollow\" href=\"https:\/\/puri.sm\/posts\/the-new-librem-one-services\/\">dem Start<\/a><\/noindex> tauchte <noindex><a rel=\"nofollow\" href=\"https:\/\/puri.sm\/posts\/underscoring-our-transparency-first-librem-one-bug-report\/\">ein kritisches Problem<\/a><\/noindex> mit der Sicherheit, das das Projekt diskreditiert, das als sichere Plattform f\u00fcr den Datenschutz pr\u00e4sentiert wird. Eine Schwachstelle wurde im Dienst Librem Chat gefunden und erlaubte den Zugang zum Chat unter jedem Benutzer, ohne die Authentifizierungsparameter zu kennen.<\/p>\n<p> Im verwendeten Code des Backend-Authentifizierungsprozesses \u00fcber LDAP (matrix-appservice-ldap3) f\u00fcr das Matrix-Netzwerk gab es einen <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/matrix-org\/matrix-synapse-ldap3\/commit\/908469c04944f72db6850205988b5c72bb704d0c\">Fehler<\/a><\/noindex>, die auch in den Code des Librem One-Dienstes \u00fcbertragen wurde. Anstelle der Zeile &#171;result, _ = yield self._ldap_simple_bind&#187; wurde &#171;result = yield self._ldap_simple_bind&#187; angegeben, was es jedem nicht autorisierten Benutzer erm\u00f6glichte, sich mit beliebiger ID in den Chat einzuloggen. Die verantwortlichen Entwickler des Matrix-Projekts machten einen Fehler.  <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/matrixdotorg\/status\/1123298776725303299\">behaupten<\/a><\/noindex>, dass das Problem nur im Master-Zweig &#171;matrix-appservice-ldap3&#187; auftrat und nicht in den Releases, aber die problematische Zeile im Repository vorhanden ist. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/matrix-org\/matrix-synapse-ldap3\/commit\/4b07b20b1135bdf7709debf3899ed077fd43ecda#diff-684dbcb9cbdc9e9506d15d554744f81aR380\">ungef\u00e4hr<\/a><\/noindex> seit 2016 existiert (m\u00f6glicherweise entstanden die Bedingungen f\u00fcr die Ausnutzung des Problems erst nach einigen anderen j\u00fcngsten \u00c4nderungen).<\/p>\n<p>Das in Betrieb genommene Servicepaket Librem One erfordert ein kostenpflichtiges Abonnement (7,99 $ pro Monat oder 71,91 $ pro Jahr), jedoch wurden bestehende Open-Source-Projekte als Grundlage f\u00fcr die mobilen Clients und Server-Handler verwendet, die <noindex><a rel=\"nofollow\" href=\"https:\/\/puri.sm\/posts\/how-purism-works-upstream-and-gives-back\/\">umbenannt wurden<\/a><\/noindex> um unter der Marke Librem verbreitet zu werden. Zum Beispiel ist Librem Chat ein umbenannter Matrix-Client, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/vector-im\/riot-android\">Riot<\/a><\/noindex>, Librem Social basiert auf <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/tuskyapp\/Tusky\">Tusky<\/a><\/noindex>, Librem Mail wurde umbenannt von <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/k9mail\/k-9\">K-9<\/a><\/noindex>, Librem Tunnel stammt von <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/schwabe\/ics-openvpn\">Ics-openvpn<\/a><\/noindex>. Die Serverkomponenten basieren auf<br \/>\n Postfix und Dovecot f\u00fcr Librem Mail, <noindex><a rel=\"nofollow\" href=\"https:\/\/matrix.org\/\">Matrix<\/a><\/noindex>  f\u00fcr Librem Chat und <noindex><a rel=\"nofollow\" href=\"https:\/\/mastodon.social\/\">Mastodon<\/a><\/noindex> f\u00fcr Librem Social. Als Grund f\u00fcr die Bereitstellung der Anwendungen unter verschiedenen Namen wird genannt, dass man verschiedene dezentralisierte Dienste auf Basis offener Standards (Matrix, ActivityPub, IMAP) unter einer einheitlichen, erkennbaren Marke zusammenf\u00fchren m\u00f6chte. <\/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=50616\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 Librem One, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u043c \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u0435 Librem 5, \u0441\u0440\u0430\u0437\u0443 \u043f\u043e\u0441\u043b\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u0432\u0441\u043f\u043b\u044b\u043b\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0441 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0434\u0438\u0441\u043a\u0440\u0435\u0434\u0438\u0442\u0438\u0440\u0443\u0435\u0442 \u043f\u0440\u043e\u0435\u043a\u0442, \u043f\u0440\u0435\u043f\u043e\u0434\u043d\u043e\u0441\u0438\u043c\u044b\u0439 \u043a\u0430\u043a \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u0430\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430 \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u0432\u0430\u0442\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u0430\u0439\u0434\u0435\u043d\u0430 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 Librem Chat \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b\u0430 \u0437\u0430\u0439\u0442\u0438 \u0432 \u0447\u0430\u0442 \u043f\u043e\u0434 \u043b\u044e\u0431\u044b\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c, \u0431\u0435\u0437 \u0437\u043d\u0430\u043d\u0438\u044f \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u0430\u0443\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438. \u0412 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u043a\u043e\u0434\u0435 \u0431\u044d\u043a\u0435\u043d\u0434\u0430 \u0430\u0432\u0442\u043e\u0440\u0438\u0437\u0430\u0446\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 LDAP (matrix-appservice-ldap3) [&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-32870","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=\"\u0412 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 Librem One, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u043c \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u0441\u043c\u0430\u0440\u0442\u0444\u043e\u043d\u0435 Librem 5, \u0441\u0440\u0430\u0437\u0443 \u043f\u043e\u0441\u043b\u0435\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link 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