{"id":99578,"date":"2021-03-26T04:22:43","date_gmt":"2021-03-26T02:22:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openssl-1-1-1k-s-ustraneniem-dvuh-opasnyh-uyazvimostej"},"modified":"2021-03-26T04:22:43","modified_gmt":"2021-03-26T02:22:43","slug":"obnovlenie-openssl-1-1-1k-s-ustraneniem-dvuh-opasnyh-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/obnovlenie-openssl-1-1-1k-s-ustraneniem-dvuh-opasnyh-uyazvimostej","title":{"rendered":"Actualizarea OpenSSL 1.1.1k cu corectarea a dou\u0103 vulnerabilit\u0103\u021bi periculoase","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Este disponibil\u0103 o versiune corectiv\u0103 a bibliotecii criptografice OpenSSL 1.1.1k, care remediaz\u0103 dou\u0103 vulnerabilit\u0103\u021bi cu un nivel ridicat de periculozitate:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-3450 \u2014 posibilitatea de a ocoli verificarea certificatului autorit\u0103\u021bii de certificare atunci c\u00e2nd se activeaz\u0103 steagul X509_V_FLAG_X509_STRICT, care este dezactivat implicit \u0219i se aplic\u0103 pentru o verificare suplimentar\u0103 a existen\u021bei certificatelor \u00een lan\u021b. Problema a fost introdus\u0103 \u00een implementarea noii verific\u0103ri ap\u0103rute \u00een OpenSSL 1.1.1h, care interzice utilizarea certificatelor din lan\u021b \u00een care sunt codificate explicit parametrii curbei eliptice.\n<p>Din cauza unei erori \u00een cod, noua verificare suprascria rezultatul unei verific\u0103ri anterioare a corectitudinii certificatului autorit\u0103\u021bii de certificare. Drept urmare, certificatele semnate cu un certificat auto-semnat, care nu este legat printr-un lan\u021b de \u00eencredere cu autoritatea de certificare, erau tratate ca fiind complet de \u00eencredere. Vulnerabilitatea nu se manifest\u0103 \u00een cazul \u00een care parametrul \u201epurpose\u201d este setat, acesta fiind activat implicit \u00een procedurile de verificare a certificatului client \u0219i server \u00een libssl (utilizat pentru TLS).      <\/p>\n<li class=\"l\"> CVE-2021-3449 \u2014 posibilitatea de a provoca o c\u0103dere <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3686\">server<\/a> TLS prin trimiterea de c\u0103tre client a unui mesaj ClientHello format special. Problema este legat\u0103 de dereferin\u021bierea unui pointer NULL \u00een implementarea extensiei signature_algorithms. Problema se manifest\u0103 doar pe <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-gdansk\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4513\">servere<\/a> cu suport pentru TLSv1.2 \u0219i cu redisponibilizarea reconect\u0103rii (activat\u0103 implicit).      <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54833\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 1.1.1k , \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438: CVE-2021-3450 &#8212; \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043e\u0431\u0445\u043e\u0434\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u0430 \u0443\u0434\u043e\u0441\u0442\u043e\u0432\u0435\u0440\u044f\u044e\u0449\u0435\u0433\u043e \u0446\u0435\u043d\u0442\u0440\u0430 \u043f\u0440\u0438 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0438 \u0444\u043b\u0430\u0433\u0430 X509_V_FLAG_X509_STRICT, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u043a\u043b\u044e\u0447\u0451\u043d \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 \u0432 \u0446\u0435\u043f\u043e\u0447\u043a\u0435. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u043d\u0435\u0441\u0435\u043d\u0430 \u0432 \u043f\u043e\u044f\u0432\u0438\u0432\u0448\u0435\u0439\u0441\u044f \u0432 OpenSSL 1.1.1h \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043d\u043e\u0432\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, \u0437\u0430\u043f\u0440\u0435\u0449\u0430\u044e\u0449\u0435\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 [&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-99578","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - 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