{"id":95506,"date":"2020-09-30T13:42:15","date_gmt":"2020-09-30T11:42:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-powerdns-authoritative-server"},"modified":"2020-09-30T13:42:15","modified_gmt":"2020-09-30T11:42:15","slug":"uyazvimosti-v-powerdns-authoritative-server","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/news\/uyazvimosti-v-powerdns-authoritative-server","title":{"rendered":"Vulnerabilit\u0101tes PowerDNS Authoritative Server","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/blog.powerdns.com\/2020\/09\/22\/powerdns-authoritative-4-3-1-4-2-3-and-4-1-14\/\">Pieejami<\/a><\/noindex> autorit\u0101t\u012bv\u0101 (authoritative) DNS servera atjaunin\u0101jumi <noindex><a rel=\"nofollow\" href=\"https:\/\/www.powerdns.com\/\">PowerDNS Authoritative Server 4.3.1, 4.2.3 un 4.1.14<\/a><\/noindex>, kuros <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2020\/09\/22\/11\">nov\u0113rstas<\/a><\/noindex> ir \u010detri dro\u0161\u012bbas tr\u016bkumi, no kuriem divi potenci\u0101li var izrais\u012bt uzbruc\u0113ja att\u0101lin\u0101tu kodu izpildi.<\/p>\n<p>Dro\u0161\u012bbas tr\u016bkumi CVE-2020-24696, CVE-2020-24697 un CVE-2020-24698<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/docs.powerdns.com\/authoritative\/security-advisories\/powerdns-advisory-2020-06.html\">skars<\/a><\/noindex> kodu ar atsl\u0113gu apmai\u0146as meh\u0101nisma realiz\u0101ciju <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Generic_Security_Service_Algorithm_for_Secret_Key_Transaction\">GSS-TSIG<\/a><\/noindex>. Vainas tiek atkl\u0101jas, kad PowerDNS tiek kompil\u0113ts ar GSS-TSIG atbalstu (&#171;&#8212;enable-experimental-gss-tsig&#187;, p\u0113c noklus\u0113juma nav izmantots) un t\u0101s var izmantot, nos\u016btot \u012bpa\u0161i izstr\u0101d\u0101tu t\u012bkla paketi. Vainas CVE-2020-24696 un CVE-2020-24698, kas izriet no sacens\u012bbu st\u0101vok\u013ca un divk\u0101r\u0161\u0101s atbr\u012bvo\u0161anas no atmi\u0146as (double-free), var izrais\u012bt av\u0101rijas vai uzbruc\u0113ja koda izpildi, apstr\u0101d\u0101jot piepras\u012bjumus ar nepareizi sagatavot\u0101m GSS-TSIG parakstiem. Vaina CVE-2020-24697 ir ierobe\u017eota l\u012bdz pakalpojuma atteik\u0161anai. T\u0101 k\u0101 GSS-TSIG kods nav izmantots p\u0113c noklus\u0113juma, tostarp izplat\u012b\u0161anas pakotn\u0113s, un potenci\u0101li satur citas probl\u0113mas, ir nolemts to piln\u012bb\u0101 iz\u0146emt PowerDNS Authoritative 4.4.0 versij\u0101.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/docs.powerdns.com\/authoritative\/security-advisories\/powerdns-advisory-2020-05.html\">CVE-2020-17482<\/a><\/noindex> var izrais\u012bt inform\u0101cijas nopl\u016bdi no neinitializ\u0113tas procesa atmi\u0146as, bet izpau\u017eas tikai apstr\u0101d\u0101jot piepras\u012bjumus no autentific\u0113tiem lietot\u0101jiem, kuriem ir iesp\u0113ja pievienot jaunas ierakstus DNS zon\u0101m, ko apkalpo serveris.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Avots: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53806\">opennet.lv<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0430\u0432\u0442\u043e\u0440\u0438\u0442\u0435\u0442\u043d\u043e\u0433\u043e (authoritative) DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 PowerDNS Authoritative Server 4.3.1, 4.2.3 \u0438 4.1.14, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0447\u0435\u0442\u044b\u0440\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u0434\u0432\u0435 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0433\u0443\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u0433\u043e. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 CVE-2020-24696, CVE-2020-24697 \u0438 CVE-2020-24698 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0442 \u043a\u043e\u0434 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u043e\u0431\u043c\u0435\u043d\u0430 \u043a\u043b\u044e\u0447\u0430\u043c\u0438 GSS-TSIG. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 PowerDNS c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 GSS-TSIG (&#171;&#8212;enable-experimental-gss-tsig&#187;, \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f) [&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-95506","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0430\u0432\u0442\u043e\u0440\u0438\u0442\u0435\u0442\u043d\u043e\u0433\u043e (authoritative) DNS-\u0441\u0435\u0440\u0432\u0435\u0440\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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