{"id":36508,"date":"2019-10-31T22:12:03","date_gmt":"2019-10-31T19:12:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/obnovlenie-exim-4-92-1-s-ustraneniem-uyazvimosti\/"},"modified":"2019-10-31T22:12:03","modified_gmt":"2019-10-31T19:12:03","slug":"obnovlenie-exim-4-92-1-s-ustraneniem-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/obnovlenie-exim-4-92-1-s-ustraneniem-uyazvimosti","title":{"rendered":"Aktualizace Exim 4.92.1 s opravou zranitelnosti.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byl zve\u0159ejn\u011bn<\/a><\/noindex> mimo\u0159\u00e1dn\u00e9 vyd\u00e1n\u00ed po\u0161tovn\u00edho serveru Exim 4.92.1<\/a><\/noindex> ve kter\u00e9m byla odstran\u011bna kritick\u00e1 zranitelnost (CVE-2019-13917), kter\u00e1 umo\u017e\u0148uje vzd\u00e1len\u00e9 vykon\u00e1n\u00ed k\u00f3du s pr\u00e1vy root p\u0159i pou\u017eit\u00ed ur\u010dit\u00fdch specifick\u00fdch nastaven\u00ed v konfiguraci. <\/p>\n

Zranitelnost se projevuje<\/a><\/noindex> Od vyd\u00e1n\u00ed 4.85, p\u0159i pou\u017eit\u00ed v nastaven\u00ed oper\u00e1tora «${sort }», v p\u0159\u00edpad\u011b, \u017ee prvky pou\u017e\u00edvan\u00e9 v seznamu «sort» mohou b\u00fdt p\u0159ed\u00e1ny \u00fato\u010dn\u00edkovi (nap\u0159\u00edklad skrze prom\u011bnn\u00e9 $local_part a $domain). Ve v\u00fdchoz\u00edm nastaven\u00ed se tento oper\u00e1tor nepou\u017e\u00edv\u00e1 v konfiguraci nab\u00edzen\u00e9 v z\u00e1kladn\u00edm bal\u00ed\u010dku Exim a v bal\u00ed\u010dku pro Debian a Ubuntu (pravd\u011bpodobn\u011b i v jin\u00fdch distribuc\u00edch). Pro kontrolu sv\u00e9 syst\u00e9mu na p\u0159\u00edtomnost zranitelnosti m\u016f\u017eete prov\u00e9st p\u0159\u00edkaz «exim -bP config | grep sort». <\/p>\n

Aktualizace bal\u00ed\u010dk\u016f s opravou zranitelnosti ji\u017e byly vyd\u00e1ny pro Debian<\/a><\/noindex> a Ubuntu<\/a><\/noindex>. Aktualizace zat\u00edm nebyly p\u0159ipraveny pro SUSE<\/a><\/noindex>, Fedora<\/a><\/noindex>, FreeBSD<\/a><\/noindex> a Arch Linux<\/a><\/noindex>. RHEL a CentOS probl\u00e9mu vystaven\u00fd<\/a><\/noindex>, proto\u017ee Exim nen\u00ed zahrnut v jejich ofici\u00e1ln\u00edm repozit\u00e1\u0159i bal\u00ed\u010dk\u016f (v p\u0159\u00edpad\u011b pot\u0159eby je t\u0159eba jej nainstalovat z repozit\u00e1\u0159e epel<\/a><\/noindex>).<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u043d\u0435\u043f\u043b\u0430\u043d\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.92.1 \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2019-13917), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root \u043f\u0440\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u0438 \u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0445 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 4.85 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0432 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430\u0445 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430 «${sort }», \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0435\u0441\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 «sort» \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u043f\u0435\u0440\u0435\u0434\u0430\u043d\u044b \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u043c (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0447\u0435\u0440\u0435\u0437 […]<\/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-36508","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Aktualizace Exim 4.92.1 s opravou zranitelnosti | ProHoster","description":"Bylo zve\u0159ejn\u011bno mimo\u0159\u00e1dn\u00e9 vyd\u00e1n\u00ed po\u0161tovn\u00edho serveru 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