{"id":103554,"date":"2022-03-17T09:36:44","date_gmt":"2022-03-17T07:36:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti"},"modified":"2022-03-17T09:36:44","modified_gmt":"2022-03-17T07:36:44","slug":"vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti","title":{"rendered":"Ver\u00f6ffentlichung von OpenVPN 2.5.6 und 2.4.12 zur Behebung einer Sicherheitsanf\u00e4lligkeit","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Die Korrekturversionen OpenVPN 2.5.6 und 2.4.12 wurden ver\u00f6ffentlicht. Diese Pakete f\u00fcr die Erstellung virtueller privater Netzwerke erm\u00f6glichen eine verschl\u00fcsselte Verbindung zwischen zwei Client-Ger\u00e4ten oder den Betrieb eines zentralen VPN-Servers, um mehreren Clients gleichzeitig zu unterst\u00fctzen. Der OpenVPN-Code wird unter der GPLv2-Lizenz verteilt, und fertige Bin\u00e4rpakete werden f\u00fcr Debian, Ubuntu, CentOS, RHEL und Windows bereitgestellt. <\/p>\n

In den neuen Versionen wurde eine Schwachstelle behoben, die potenziell eine Umgehung der Authentifizierung durch Manipulation externer Plugins erm\u00f6glichte, die den Modus der verz\u00f6gerten Authentifizierung (deferred_auth) unterst\u00fctzen. Das Problem tritt auf, wenn mehrere Plugins verz\u00f6gerte Authentifizierungsantworten senden, was einem externen Benutzer den Zugriff auf der Grundlage nicht vollst\u00e4ndig korrekter Anmeldedaten erm\u00f6glicht. Ab den Versionen OpenVPN 2.5.6 und 2.4.12 f\u00fchren Versuche, verz\u00f6gerte Authentifizierung durch mehrere Plugins zu verwenden, zu einer Fehlermeldung. <\/p>\n

Unter den anderen \u00c4nderungen ist die Aufnahme des neuen Plugins sample-plugin\/defer\/multi-auth.c zu erw\u00e4hnen, das n\u00fctzlich sein kann, um das Testen der gleichzeitigen Nutzung verschiedener Authentifizierungs-Plugins zu organisieren, um zuk\u00fcnftig Schwachstellen wie die oben besprochene zu vermeiden. Auf der Plattform Linux funktioniert die Option «—mtu-disc maybe|yes» nun zuverl\u00e4ssig. Ein Speicherleck in den Routenzuordnungsprozessen wurde behoben.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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