{"id":121383,"date":"2025-01-17T09:46:03","date_gmt":"2025-01-17T07:46:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openvpn-2-6-13-s-ustraneniem-problemy-s-bezopasnostyu"},"modified":"2025-01-17T09:46:03","modified_gmt":"2025-01-17T07:46:03","slug":"obnovlenie-openvpn-2-6-13-s-ustraneniem-problemy-s-bezopasnostyu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/obnovlenie-openvpn-2-6-13-s-ustraneniem-problemy-s-bezopasnostyu","title":{"rendered":"Aktualiz\u00e1cia OpenVPN 2.6.13 s opraven\u00edm bezpe\u010dnostn\u00e9ho probl\u00e9mu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Bol to vydan\u00fd bal\u00edk na vytv\u00e1ranie virtu\u00e1lnych priv\u00e1tnych siet\u00ed OpenVPN 2.6.13, ktor\u00fd umo\u017e\u0148uje organizova\u0165 \u0161ifrovan\u00e9 spojenie medzi dvoma klientsk\u00fdmi strojmi alebo zriadi\u0165 centralizovan\u00fd VPN server pre s\u00fa\u010dasn\u00fa pr\u00e1cu nieko\u013ek\u00fdch klientov. V novej verzii bola odstr\u00e1nen\u00e1 bezpe\u010dnostn\u00e1 chyba, ktor\u00e1 sp\u00f4sobila prete\u010denie vyrovn\u00e1vacej pam\u00e4te na strane servera OpenVPN pri prij\u00edman\u00ed prihlasovac\u00edch \u00fadajov od klienta, ktor\u00fdch ve\u013ekos\u0165 presahuje hodnotu USER_PASS_LEN. CVE identifik\u00e1tor zranite\u013enosti zatia\u013e nebol pridelen\u00fd a nie je jasn\u00e9, do akej miery je probl\u00e9m vhodn\u00fd na v\u00fdrobu funk\u010dn\u00fdch exploitov.    <\/p>\n<p>Z nezabezpe\u010den\u00fdch zmien m\u00f4\u017eeme spomen\u00fa\u0165:  <\/p>\n<ul>\n<li class=\"l\"> Bola implementovan\u00e1 funkcia, ktor\u00e1 odosiela klientom parameter IV_PLAT_VER obsahuj\u00faci inform\u00e1cie o verzii opera\u010dn\u00e9ho syst\u00e9mu poskytovan\u00e9 funkciou uname(), \u010do umo\u017e\u0148uje <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/server\/dts-gdansk\/\"   title=\"serveroch\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4557\">serveroch<\/a> zbiera\u0165 \u0161tatistiky o verzi\u00e1ch OS pou\u017e\u00edvan\u00fdch klientmi.\n<li class=\"l\"> Na syst\u00e9moch Linux je zabezpe\u010den\u00e9 spustenie procesu systemd-ask-password s parametrom &#171;&#8212;timeout=0&#187; na vypnutie predvolen\u00e9ho 90-sekundov\u00e9ho \u010dasov\u00e9ho limitu.\n<li class=\"l\"> Boli odstr\u00e1nen\u00e9 \u00faniky pam\u00e4te, ktor\u00e9 sa prejavovali vo FreeBSD.\n<li class=\"l\"> Pri spusten\u00ed s mo\u017enos\u0165ou &#171;&#8212;auth-nocache&#187; je implementovan\u00e9 odstr\u00e1nenie parametrov autentifik\u00e1cie pre proxy z pam\u00e4te po ich pou\u017eit\u00ed.\n<li class=\"l\"> Vo Windows kliente bola vyu\u017eit\u00e1 funkcia CryptProtectMemory() na zabezpe\u010den\u00e9 uchov\u00e1vanie v pam\u00e4ti vyrovnan\u00fdch hesiel a tokenov. Bol pou\u017eit\u00fd nov\u00fd API na z\u00edskanie verzie ovl\u00e1da\u010da dco-win.  <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62573\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \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 OpenVPN 2.6.13, \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 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e VPN-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0441 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u043a \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u0431\u0443\u0444\u0435\u0440\u0430 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 OpenVPN \u043f\u0440\u0438 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0438 \u043e\u0442 \u043a\u043b\u0438\u0435\u043d\u0442\u0430 \u043b\u043e\u0433\u0438\u043d\u0430 \u0438\u043b\u0438 \u043f\u0430\u0440\u043e\u043b\u044f, \u0440\u0430\u0437\u043c\u0435\u0440 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 USER_PASS_LEN. [&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-121383","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \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 OpenVPN 2.6.13, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e 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