{"id":101613,"date":"2021-10-12T22:22:39","date_gmt":"2021-10-12T20:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/github-zablokiroval-ssh-klyuchi-sgenerirovannye-pri-pomoshhi-biblioteki-keypair"},"modified":"2021-10-12T22:22:39","modified_gmt":"2021-10-12T20:22:39","slug":"github-zablokiroval-ssh-klyuchi-sgenerirovannye-pri-pomoshhi-biblioteki-keypair","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/github-zablokiroval-ssh-klyuchi-sgenerirovannye-pri-pomoshhi-biblioteki-keypair","title":{"rendered":"GitHub hat SSH-Schl\u00fcssel blockiert, die mit Hilfe der Bibliothek keypair generiert wurden.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

GitHub hat die SSH-Schl\u00fcssel von Benutzern von Git-Clients blockiert, die die JavaScript-Bibliothek keypair zur Generierung der Schl\u00fcssel verwenden. Beispielsweise wurden die Schl\u00fcssel des Git-Clients GitKraken blockiert. Die Sicherheitsanf\u00e4lligkeit f\u00fchrt zur Bildung von vorhersehbaren RSA-Schl\u00fcsseln aufgrund eines Fehlers, der die Qualit\u00e4t der Entropie bei der Generierung einer Zufallsfolge f\u00fcr Schl\u00fcssel erheblich beeintr\u00e4chtigt. Das Problem wurde in den Versionen von keypair 1.0.4 und GitKraken 8.0.1 behoben. <\/p>\n

Die Ursache f\u00fcr die Entstehung der Schwachstelle war die Verwendung der Methode zur Generierung des Aufrufschl\u00fcssels «b.putByte(String.fromCharCode(next & 0xFF))», w\u00e4hrend die Methode putByte erneut die Methode fromCharCode aufrief. Der doppelte Aufruf von fromCharCode («String.fromCharCode( String.fromCharCode(next & 0xFF) )») f\u00fchrte dazu, dass ein gro\u00dfer Teil des Puffers mit Entropie mit Nullen gef\u00fcllt war, d.h. der Schl\u00fcssel wurde auf der Grundlage von «zuf\u00e4lligen» Daten generiert, die zu 97 % aus Nullen bestanden.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

GitHub \u0437\u0430\u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043b SSH-\u043a\u043b\u044e\u0447\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 Git-\u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u0434\u043b\u044f \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u043a\u043b\u044e\u0447\u0435\u0439 JavaScript-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 keypair. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u043e\u0434 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0443 \u043f\u043e\u043f\u0430\u043b\u0438 \u043a\u043b\u044e\u0447\u0438 Git-\u043a\u043b\u0438\u0435\u043d\u0442\u0430 GitKraken. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u0445 RSA-\u043a\u043b\u044e\u0447\u0435\u0439 \u0438\u0437-\u0437\u0430 \u043e\u0448\u0438\u0431\u043a\u0438, \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0441\u043d\u0438\u0436\u0430\u044e\u0449\u0435\u0439 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u044d\u043d\u0442\u0440\u043e\u043f\u0438\u0438 \u043f\u0440\u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e\u0439 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0434\u043b\u044f \u043a\u043b\u044e\u0447\u0435\u0439. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 keypair 1.0.4 \u0438 \u0432 GitKraken 8.0.1. \u041f\u0440\u0438\u0447\u0438\u043d\u043e\u0439 \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0441\u0442\u0430\u043b\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430 […]<\/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-101613","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47GitHub hat SSH-Schl\u00fcssel blockiert, die mit der Bibliothek keypair generiert wurden | ProHoster","description":"GitHub hat die SSH-Schl\u00fcssel von Benutzern von Git-Clients, die zur Generierung von Schl\u00fcsseln die JavaScript-Bibliothek keypair verwenden, blockiert. Dazu geh\u00f6ren beispielsweise die Schl\u00fcssel des Git-Clients GitKraken. Diese Sicherheitsanf\u00e4lligkeit f\u00fchrt zur Erstellung vorhersehbarer RSA-Schl\u00fcssel aufgrund eines Fehlers, der die Qualit\u00e4t der Entropie bei der Generierung zuf\u00e4lliger Sequenzen f\u00fcr die Schl\u00fcssel erheblich verringert. Das Problem wurde in den Versionen keypair 1.0.4 und GitKraken 8.0.1 behoben. Die Verletzung der Sicherheit entstand durch die Art und Weise, wie die Schl\u00fcssel generiert werden.","canonical_url":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/github-zablokiroval-ssh-klyuchi-sgenerirovannye-pri-pomoshhi-biblioteki-keypair","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"de_DE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47GitHub \u0437\u0430\u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043b SSH-\u043a\u043b\u044e\u0447\u0438, \u0441\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043f\u0440\u0438 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