{"id":102799,"date":"2021-12-29T09:36:48","date_gmt":"2021-12-29T07:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/%d0%be%d0%b1%d0%bd%d0%be%d0%b2%d0%bb%d0%b5%d0%bd%d0%b8%d0%b5-log4j-2-17-1-%d1%81-%d1%83%d1%81%d1%82%d1%80%d0%b0%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5%d0%bc-%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%be%d0%b9"},"modified":"2021-12-29T09:36:48","modified_gmt":"2021-12-29T07:36:48","slug":"%d0%be%d0%b1%d0%bd%d0%be%d0%b2%d0%bb%d0%b5%d0%bd%d0%b8%d0%b5-log4j-2-17-1-%d1%81-%d1%83%d1%81%d1%82%d1%80%d0%b0%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5%d0%bc-%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%be%d0%b9","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/%d0%be%d0%b1%d0%bd%d0%be%d0%b2%d0%bb%d0%b5%d0%bd%d0%b8%d0%b5-log4j-2-17-1-%d1%81-%d1%83%d1%81%d1%82%d1%80%d0%b0%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5%d0%bc-%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%be%d0%b9","title":{"rendered":"Log4j 2.17.1 friss\u00edt\u00e9se egy \u00fajabb sebezhet\u0151s\u00e9g jav\u00edt\u00e1s\u00e1val","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelentek a Log4j 2.17.1, 2.3.2-rc1 \u00e9s 2.12.4-rc1 k\u00f6nyvt\u00e1rjav\u00edt\u00f3 kiad\u00e1sai, amelyekben egy \u00fajabb sebezhet\u0151s\u00e9get orvosoltak (CVE-2021-44832). A probl\u00e9ma lehet\u0151v\u00e9 teszi a t\u00e1voli k\u00f3dv\u00e9grehajt\u00e1st (RCE), azonban nem min\u0151s\u00fcl vesz\u00e9lyesnek (CVSS Score 6.6), \u00e9s f\u0151k\u00e9nt elm\u00e9leti \u00e9rdekl\u0151d\u00e9sre ad okot, mivel speci\u00e1lis k\u00f6r\u00fclm\u00e9nyeket ig\u00e9nyel a kihaszn\u00e1l\u00e1s\u00e1hoz \u2013 a t\u00e1mad\u00f3nak m\u00f3dj\u00e1ban kell \u00e1llnia m\u00f3dos\u00edtani a Log4j be\u00e1ll\u00edt\u00f3 f\u00e1jlj\u00e1t, vagyis hozz\u00e1f\u00e9r\u00e9ssel kell rendelkeznie a c\u00e9lzott rendszerhez, \u00e9s enged\u00e9llyel kell b\u00edrnia a log4j2.configurationFile konfigur\u00e1ci\u00f3s param\u00e9ter \u00e9rt\u00e9k\u00e9nek m\u00f3dos\u00edt\u00e1s\u00e1ra vagy a megl\u00e9v\u0151 napl\u00f3z\u00e1si be\u00e1ll\u00edt\u00f3 f\u00e1jlok m\u00f3dos\u00edt\u00e1s\u00e1ra.    <\/p>\n<p>A t\u00e1mad\u00e1s l\u00e9nyege, hogy meghat\u00e1rozzuk a helyi rendszeren a JDBC Appender alap\u00fa konfigur\u00e1ci\u00f3t, amely egy k\u00fcls\u0151 JNDI URI-ra hivatkozik, amelynek lek\u00e9rdez\u00e9se sor\u00e1n visszat\u00e9rhet egy Java-oszt\u00e1ly v\u00e9grehajt\u00e1sra. Alap\u00e9rtelmez\u00e9s szerint a JDBC Appender nincs be\u00e1ll\u00edtva m\u00e1s protokollok, p\u00e9ld\u00e1ul a Java kezel\u00e9s\u00e9re, teh\u00e1t a konfigur\u00e1ci\u00f3 m\u00f3dos\u00edt\u00e1sa n\u00e9lk\u00fcl a t\u00e1mad\u00e1s lehetetlen. Ezenk\u00edv\u00fcl a probl\u00e9ma csak a log4j-core JAR f\u00e1jlban jelentkezik, \u00e9s nem \u00e9rinti azokat az alkalmaz\u00e1sokat, amelyek csak a log4j-api JAR f\u00e1jlt haszn\u00e1lj\u00e1k log4j-core n\u00e9lk\u00fcl.             \t                              &#8230;<br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56428\">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 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Log4j 2.17.1, 2.3.2-rc1 \u0438 2.12.4-rc1, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0435\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-44832). \u0423\u043f\u043e\u043c\u0438\u043d\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \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 (RCE), \u043d\u043e \u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u043f\u043e\u043c\u0435\u0447\u0435\u043d\u0430 \u043a\u0430\u043a \u043d\u0435\u043e\u043f\u0430\u0441\u043d\u0430\u044f (CVSS Score 6.6) \u0438 \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043b\u0438\u0448\u044c \u0442\u0435\u043e\u0440\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441, \u0442\u0430\u043a \u043a\u0430\u043a \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u0439 \u0434\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 &#8212; \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u0434\u043e\u043b\u0436\u0435\u043d \u0438\u043c\u0435\u0442\u044c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u043d\u0435\u0441\u0442\u0438 \u0438\u0437\u043c\u0435\u043d\u0435\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-102799","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 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(CVE-2021-44832).","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/%d0%be%d0%b1%d0%bd%d0%be%d0%b2%d0%bb%d0%b5%d0%bd%d0%b8%d0%b5-log4j-2-17-1-%d1%81-%d1%83%d1%81%d1%82%d1%80%d0%b0%d0%bd%d0%b5%d0%bd%d0%b8%d0%b5%d0%bc-%d0%b5%d1%89%d1%91-%d0%be%d0%b4%d0%bd%d0%be%d0%b9","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 Log4j 2.17.1 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0435\u0449\u0451 \u043e\u0434\u043d\u043e\u0439 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