{"id":121283,"date":"2025-01-09T15:46:01","date_gmt":"2025-01-09T13:46:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-openvpn-dopuskayushhaya-podstanovku-dannyh-v-plaginy-i-storonnie-obrabotchiki"},"modified":"2025-01-09T15:46:01","modified_gmt":"2025-01-09T13:46:01","slug":"uyazvimost-v-openvpn-dopuskayushhaya-podstanovku-dannyh-v-plaginy-i-storonnie-obrabotchiki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/uyazvimost-v-openvpn-dopuskayushhaya-podstanovku-dannyh-v-plaginy-i-storonnie-obrabotchiki","title":{"rendered":"Eine Schwachstelle in OpenVPN, die das Einf\u00fcgen von Daten in Plugins und externe Handler erm\u00f6glicht.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Details regarding the vulnerability (CVE-2024-5594) in the OpenVPN private network creation package have been revealed. This can lead to the injection of arbitrary data into external executable files or plugins on the other end of the connection. The vulnerability arises from a lack of validation of null bytes and incorrect characters when processing control messages such as PUSH_REPLY. <\/p>\n

The issue has been resolved in the OpenVPN releases 2.5.11 and 2.6.11, released in June 2024. In the release notes, the vulnerability was considered a minor issue that resulted in garbage data being written to logs or an increase in CPU load. In a recent update published a few days ago, the problem has been escalated to critical (danger level 9.1 out of 10). <\/p>\n

Details zur Nutzung werden derzeit nicht bereitgestellt. Die Korrektur umfasst das Anhalten der Verarbeitung von Nachrichten mit ung\u00fcltigen Zeichen sowie die \u00dcberpr\u00fcfung ung\u00fcltiger Zeichen im gesamten Puffer und nicht nur im Teil bis zum Nullbyte. Die \u00dcberpr\u00fcfung auf Sonderzeichen und Nullbyte wurde f\u00fcr die Befehle «AUTH_FAILED», «PUSH_*», «RESTART», «HALT», «INFO_PRE», «INFO», «CR_RESPONSE», «AUTH_PENDING» und «EXIT» hinzugef\u00fcgt.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Diese kann zur Einschleusung beliebiger Daten in externe ausf\u00fchrbare Dateien oder Plugins auf der gegen\u00fcberliegenden Seite der Verbindung f\u00fchren. Die Schwachstelle entsteht durch das Fehlen einer \u00dcberpr\u00fcfung auf Null-Bytes und ung\u00fcltige Zeichen bei der Verarbeitung von Steuer-Nachrichten wie PUSH_REPLY. Das Problem wurde in den Ver\u00f6ffentlichungen von OpenVPN 2.5.11 behoben.","canonical_url":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/uyazvimost-v-openvpn-dopuskayushhaya-podstanovku-dannyh-v-plaginy-i-storonnie-obrabotchiki","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\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 OpenVPN, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0430\u044f \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 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\u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u0435 \u0438\u0441\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0435 \u0444\u0430\u0439\u043b\u044b \u0438\u043b\u0438 \u043f\u043b\u0430\u0433\u0438\u043d\u044b \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043d\u0430 \u0434\u0440\u0443\u0433\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u043d\u0443\u043b\u0435\u0432\u044b\u0445 \u0431\u0430\u0439\u0442\u043e\u0432 \u0438 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u0445 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 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