{"id":91998,"date":"2020-08-21T13:42:04","date_gmt":"2020-08-21T11:42:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-dns-servera-bind-9-11-22-9-16-6-9-17-4-s-ustraneniem-5-uyazvimostej"},"modified":"2020-08-21T13:42:04","modified_gmt":"2020-08-21T11:42:04","slug":"obnovlenie-dns-servera-bind-9-11-22-9-16-6-9-17-4-s-ustraneniem-5-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/obnovlenie-dns-servera-bind-9-11-22-9-16-6-9-17-4-s-ustraneniem-5-uyazvimostej","title":{"rendered":"DNS-serveri BIND 9.11.22, 9.16.6, 9.17.4 v\u00e4rskendus, mis k\u00f5rvaldab 5 haavatavust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/bind-announce@lists.isc.org\/msg00579.html\">Avaldatud<\/a><\/noindex> DNS-server BIND 9.11.22 ja 9.16.6 stabiilsete harude parandavad v\u00e4rskendused, samuti arenduses olev eksperimentaalne haru 9.17.4. Uutes v\u00e4ljaannetes on k\u00f5rvaldatud 5 haavatavust. K\u00f5ige ohtlikum haavatavus (<noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2020-8620\">CVE-2020-8620<\/a><\/noindex>) <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.talosintelligence.com\/2020\/08\/vuln-spotlight-ISC-BIND-aug-2020.html\">kaugelt sulgeda vahekaarte, mis on avatud teistel seadmetel.<\/a><\/noindex> v\u00f5ib kaugelt p\u00f5hjustada teenuse katkestuse, saates kindla pakettide kogumi TCP-porti, kus BIND aktsepteerib \u00fchendusi. Ahnudelt TCP-portidelt saadetud ebanormaalselt suured AXFR-p\u00e4ringud, <noindex><a rel=\"nofollow\" href=\"https:\/\/talosintelligence.com\/vulnerability_reports\/TALOS-2020-1100\">v\u00f5ivad viia<\/a><\/noindex> selleni, et TCP-\u00fchenduse haldamise teek libuv edastab serverile suuruse, mis p\u00f5hjustab assertioni kontrolli v\u00e4ljakutse ja protsessi l\u00f5petamise.<\/p>\n<p>Teised haavatavused:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2020-8621\">CVE-2020-8621<\/a><\/noindex> \u2014 r\u00fcndaja v\u00f5ib algatada assertion kontrollimise ja resolveri kiire l\u00f5petamise, kui ta \u00fcritab QNAME minimeerida p\u00e4rast p\u00e4ringu edastamist. Probleem ilmneb ainult serverites, kus QNAME minimeerimine on sisse l\u00fclitatud ja mis t\u00f6\u00f6tavad re\u017eiimis 'forward first'.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2020-8622\">CVE-2020-8622<\/a><\/noindex> \u2014 r\u00fcndaja v\u00f5ib algatada assertion kontrollimise ja t\u00f6\u00f6protsessi kiire l\u00f5petamise, kui r\u00fcndaja DNS-server tagastab vale vastuse DNS-serveri p\u00e4ringule, millel on TSIG allkiri.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2020-8623\">CVE-2020-8623<\/a><\/noindex> \u2014 r\u00fcndaja v\u00f5ib algatada assertion kontrollimise ja t\u00f6\u00f6tleja kiire l\u00f5petamise, saates spetsiaalselt vormindatud tsooni p\u00e4ringuid, mis on RSA v\u00f5tmega allkirjastatud. Probleem ilmneb ainult juhul, kui server on kokku pandud valikuga '-enable-native-pkcs11'.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.isc.org\/docs\/cve-2020-8624\">CVE-2020-8624<\/a><\/noindex> \u2014 r\u00fcndaja, kellel on volitused muuta teatud v\u00e4ljade sisu DNS-tsoonides, v\u00f5ib saada lisavolitusi teise DNS-tsooni sisu muutmiseks.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53577\">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\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u0432\u0435\u0442\u043e\u043a DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND 9.11.22 \u0438 9.16.6, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043d\u0430\u0445\u043e\u0434\u044f\u0449\u0435\u0439\u0441\u044f \u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0442\u043a\u0438 9.17.4. \u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 5 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2020-8620) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u043d\u0430\u0431\u043e\u0440\u0430 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043d\u0430 TCP-\u043f\u043e\u0440\u0442, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f BIND. \u041e\u0442\u043f\u0440\u0430\u0432\u043a\u0430 \u043d\u0430 TCP-\u043f\u043e\u0440\u0442 \u0430\u043d\u043e\u043c\u0430\u043b\u044c\u043d\u043e \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 AXFR, \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 [&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-91998","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=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u0432\u0435\u0442\u043e\u043a DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 BIND 9.11.22 \u0438 9.16.6, \u0430.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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