{"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\/ro\/blog\/news\/vypusk-openvpn-2-5-6-i-2-4-12-s-ustraneniem-uyazvimosti","title":{"rendered":"Lansarea OpenVPN 2.5.6 \u0219i 2.4.12 cu remedierea vulnerabilit\u0103\u021bii","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Au fost preg\u0103tite versiunile corective OpenVPN 2.5.6 \u0219i 2.4.12, un pachet pentru crearea de re\u021bele private virtuale, care permite organizarea unei conexiuni criptate \u00eentre dou\u0103 ma\u0219ini client sau asigurarea func\u021bion\u0103rii unui server VPN centralizat pentru utilizarea simultan\u0103 de c\u0103tre mai mul\u021bi clien\u021bi. Codul OpenVPN este distribuit sub licen\u021ba GPLv2, iar pachetele binare gata sunt formate pentru Debian, Ubuntu, CentOS, RHEL \u0219i Windows. <\/p>\n

Noile versiuni elimin\u0103 o vulnerabilitate care permitea ocolirea autentific\u0103rii prin manipularea pluginurilor externe care suport\u0103 modul de autentificare \u00eent\u00e2rziat\u0103 (deferred_auth). Problema apare atunci c\u00e2nd mai multe pluginuri trimit r\u0103spunsuri \u00eent\u00e2rziate de autentificare, ceea ce permite unui utilizator extern s\u0103 ob\u021bin\u0103 acces pe baza unor date de autentificare par\u021bial corecte. \u00cencep\u00e2nd cu versiunile OpenVPN 2.5.6 \u0219i 2.4.12, \u00eencerc\u0103rile de utilizare a autentific\u0103rii \u00eent\u00e2rziate de c\u0103tre mai multe pluginuri vor duce la generarea unei erori. <\/p>\n

Printre celelalte modific\u0103ri se num\u0103r\u0103 includerea unui nou plugin sample-plugin\/defer\/multi-auth.c, care poate fi util pentru organizarea test\u0103rii utiliz\u0103rii simultane a diferitelor pluginuri de autentificare, pentru a evita pe viitor vulnerabilit\u0103\u021bi similare cu cea discutat\u0103 mai sus. Pe platforma Linux, op\u021biunea «—mtu-disc maybe|yes» a fost configurat\u0103. A fost remediat\u0103 o scurgere de memorie \u00een procedurile de ad\u0103ugare a rutelor.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 OpenVPN 2.5.6 \u0438 2.4.12, \u043f\u0430\u043a\u0435\u0442\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u0447\u0430\u0441\u0442\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043c\u0435\u0436\u0434\u0443 \u0434\u0432\u0443\u043c\u044f \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u043c\u0438 \u043c\u0430\u0448\u0438\u043d\u0430\u043c\u0438 \u0438\u043b\u0438 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