{"id":111480,"date":"2023-11-13T15:10:13","date_gmt":"2023-11-13T13:10:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-openvpn-i-softether-vpn"},"modified":"2023-11-13T15:10:13","modified_gmt":"2023-11-13T13:10:13","slug":"uyazvimosti-v-openvpn-i-softether-vpn","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/uyazvimosti-v-openvpn-i-softether-vpn","title":{"rendered":"Haavatavused OpenVPN-is ja SoftEther VPN-is","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Valmis on OpenVPN 2.6.7 v\u00e4ljaanne, mis on pakett virtuaalsete erav\u00f5rkude loomiseks, v\u00f5imaldades luua kr\u00fcpteeritud \u00fchenduse kahe kliendi masina vahel v\u00f5i korraldada keskset VPN-serverit, mille kaudu saavad samaaegselt t\u00f6\u00f6tada mitmed kliendid. Uues versioonis on k\u00f5rvaldatud kaks haavatavust:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-46850 \u2014 m\u00e4lu piirkonna juurdep\u00e4\u00e4s p\u00e4rast selle vabastamist (use-after-free) v\u00f5ib viia protsessi m\u00e4lusisalduse saatmiseni \u00fchenduse teisele poole, samuti potentsiaalselt kaugelt koodi t\u00e4itmiseni. Probleem ilmneb konfiguratsioonides, mis kasutavad TLS-i (k\u00e4ivitatuna ilma parameetrita \u00ab\u2014secret\u00bb).\n<li class=\"l\"> CVE-2023-46849 \u2014 nulliga jagamise olukord v\u00f5ib viia kaugelt algatatud juurdep\u00e4\u00e4su serveri kokkuvarisemiseni konfiguratsioonides, mis kasutavad valikut \u00ab\u2014fragment\u00bb.    <\/ul>\n<p>OpenVPN 2.6.7-ga seotud mitteohutuse muudatused:  <\/p>\n<ul>\n<li class=\"l\"> Lisatud hoiatust, kui teine pool saadab DATA_V1 pakette, kui klient \u00fcritab \u00fchenduda OpenVPN 2.6.x versiooniga \u00fchilduvate versioonidega 2.4.0-2.4.4 (\u00fchilduvuse k\u00f5rvaldamiseks v\u00f5ib kasutada valikut \u00ab\u2014disable-dco\u00bb).\n<li class=\"l\"> Eemaldatud on OpenSSL 1.x-iga seotud vananenud meetod, mis kasutas OpenSSL Engine\u2019i v\u00f5tmete laadimiseks. P\u00f5hjuseks on autori soovimatus kode \u00fcmber litsentseerida uutega seoses.\n<li class=\"l\"> Lisatud hoiatust p2p NCP kliendi \u00fchendamisel <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serveri\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2912\">serveri<\/a> p2mp (kombinatsioon, mida kasutatakse ilma kr\u00fcptode koosk\u00f5lastamiseta), kuna kahel \u00fchenduses osaleval k\u00fcljel esinevad probleemid versioonide 2.6.x kasutamisel.\n<li class=\"l\"> Lisatud hoiatust, et lipp \u00ab\u2014show-groups\u00bb ei n\u00e4ita k\u00f5iki toetatud gruppe.\n<li class=\"l\"> Parameetrist \u00ab\u2014dns\u00bb on eemaldatud argument \u00abexclude-domains\u00bb, mis ilmus 2.6 harus, kuid ei ole veel toetatud taustal.\n<li class=\"l\"> Lisatud on hoiatust, mis n\u00e4itab, kui INFO juhtimisdokument on liiga suur ja ei saa kliendile edastada.\n<li class=\"l\"> MinGW ja MSVC kasutava kompileerimise jaoks on lisatud CMake ehituss\u00fcsteemi tugi. Eemaldatud on vana MSVC ehituss\u00fcsteemi tugi.  <\/ul>\n<p>Lisaks tuleb m\u00e4rkida, et avastati 9 haavatavust avatud <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"213\">VPN<\/a>-server SoftEther. \u00dchele probleemile (CVE-2023-27395) on antud kriitiline ohtlikkus \u2014 haavatavus on p\u00f5hjustatud puhver-\u00fclevoolust ja v\u00f5ib viia koodi kaugelt t\u00e4itmiseni, kui \u00fcritatakse \u00fchenduda kuritegelikult juhitud serveriga. Haavatavus on k\u00f5rvaldatud SoftEther VPN 4.42 Build 9798 RTM juuni v\u00e4rskenduses. Veel kaks haavatavust (CVE-2023-32634, CVE-2023-27516) v\u00f5imaldavad saada volitamata juurdep\u00e4\u00e4su VPN-seansile MITM-r\u00fcnnaku k\u00e4igus, kasutades vaikimisi m\u00e4\u00e4ratud RPC-serveri sisselogimisandmeid. Haavatavused on k\u00f5rvaldatud plaastri vormis.    <\/p>\n<p>Haavatavused CVE-2023-31192 ja CVE-2023-32275 (plaat\u0161) v\u00f5ivad p\u00f5hjustada konfidentsiaalsete andmete lekkimist teatud paketides MITM-r\u00fcnnakute t\u00f5ttu. J\u00e4\u00e4nud neli haavatavust (CVE-2023-22325, CVE-2023-23581, CVE-2023-22308 ja CVE-2023-25774) v\u00f5ivad v\u00f5imaldada teenuse keelamist, n\u00e4iteks sundides \u00fchenduse katkestamist v\u00f5i kliendi ootamatut sulgemist. SoftEther VPN-i koodibaasi on hiljuti lisatud ka seitsme haavatavuse parandused, mille kohta pole detailideni veel teavet.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60103\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a OpenVPN 2.6.7, \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 \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\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2023-46850 &#8212; \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043a \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u043e\u0441\u043b\u0435 \u0435\u0451 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (use-after-free) \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u043d\u0430 \u0434\u0440\u0443\u0433\u0443\u044e \u0441\u0442\u043e\u0440\u043e\u043d\u0443 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430, [&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-111480","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a OpenVPN 2.6.7, \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 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