{"id":121007,"date":"2024-12-17T21:46:00","date_gmt":"2024-12-17T19:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-apache-struts-pozvolyayushhaya-vypolnit-kod-na-servere"},"modified":"2024-12-17T21:46:00","modified_gmt":"2024-12-17T19:46:00","slug":"uyazvimost-v-apache-struts-pozvolyayushhaya-vypolnit-kod-na-servere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/uyazvimost-v-apache-struts-pozvolyayushhaya-vypolnit-kod-na-servere","title":{"rendered":"Zranite\u013enos\u0165 v Apache Struts umo\u017e\u0148uj\u00faca vykonanie k\u00f3du na serveri","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Vo webovom r\u00e1mci Apache Struts, ktor\u00fd sa pou\u017e\u00edva na vytv\u00e1ranie webov\u00fdch aplik\u00e1ci\u00ed v jazyku Java s vyu\u017eit\u00edm paradigmy MVC (Model-View-Controller), bola zisten\u00e1 zranite\u013enos\u0165 (CVE-2024-53677). Zranite\u013enos\u0165 umo\u017e\u0148uje extern\u00e9mu \u00fato\u010dn\u00edkovi zap\u00edsa\u0165 s\u00fabor na \u013eubovo\u013en\u00e9 miesto v s\u00faborovom syst\u00e9me servera prostredn\u00edctvom odoslania \u0161peci\u00e1lne form\u00e1tovanej HTTP po\u017eiadavky. Probl\u00e9m zasahuje verzie od 2.0.0 do 2.3.37, od 2.5.0 do 2.5.33 a od 6.0.0 do 6.3.0.2 a prejavuje sa v aplik\u00e1ci\u00e1ch, ktor\u00e9 pou\u017e\u00edvaj\u00fa komponent FileUploadInterceptor na nahr\u00e1vanie s\u00faborov na server. <\/p>\n

Zranite\u013enos\u0165 je sp\u00f4soben\u00e1 nedostato\u010dnou kontrolou parametrov, ktor\u00e9 sa pred\u00e1vaj\u00fa pri nahr\u00e1van\u00ed s\u00faborov. Pri pr\u00edstupe k funkci\u00e1m nahr\u00e1vania s\u00faborov v implementovanom webovom rozhran\u00ed zalo\u017eenom na Apache Struts m\u00f4\u017ee \u00fato\u010dn\u00edk zada\u0165 hodnotu vo forme \u201e..\\\/..\\\/..\\\/..\\\/..\\\/webapps\\\/ROOT\u201c a dosiahnu\u0165 ulo\u017eenie s\u00faboru mimo adres\u00e1ra pre ukladan\u00e9 nahr\u00e1vky (prototyp exploit). Z\u00edskan\u00edm mo\u017enosti zapisova\u0165 s\u00fabory do \u013eubovo\u013en\u00fdch \u010dast\u00ed s\u00faborov\u00e9ho syst\u00e9mu je mo\u017en\u00e9 zariadi\u0165 vykon\u00e1vanie svojich pr\u00edkazov na serveri<\/a>, prep\u00edsan\u00edm skriptov alebo konfigura\u010dn\u00fdch s\u00faborov, pokia\u013e to dovo\u013euj\u00fa pr\u00e1va pou\u017e\u00edvate\u013ea, pod ktor\u00fdm sa webov\u00e1 aplik\u00e1cia vykon\u00e1va. Ak sa webov\u00e1 aplik\u00e1cia vykon\u00e1va v kontajneri Apache Tomcat, spustenom s pr\u00e1vami root, m\u00f4\u017ee \u00fato\u010dn\u00edk z\u00edska\u0165 privilegovan\u00fd pr\u00edstup do syst\u00e9mu. <\/p>\n

Zranite\u013enosti v Apache Struts maj\u00fa v\u00fdznam, preto\u017ee tento r\u00e1mec je popul\u00e1rny v firemn\u00fdch syst\u00e9moch dostupn\u00fdch cez web. Pod\u013ea \u0161tatistiky RedMonk bol r\u00e1mec Apache Struts pou\u017eit\u00fd v webov\u00fdch aplik\u00e1ci\u00e1ch 65% spolo\u010dnost\u00ed zo zoznamu Fortune 100. \u00datok na informa\u010dn\u00fd syst\u00e9m spolo\u010dnosti Equifax v roku 2017, ktor\u00fd vyu\u017e\u00edval zranite\u013en\u00fa verziu Apache Struts, viedol k \u00faniku osobn\u00fdch \u00fadajov 143 mili\u00f3nov obyvate\u013eov USA.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 web-\u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0435 Apache Struts, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Java \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0430\u0440\u0430\u0434\u0438\u0433\u043c\u044b \u041cV\u0421 (Model-View-Controller), \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2024-53677). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0434\u0430\u0451\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u043d\u0435\u0448\u043d\u0435\u043c\u0443 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0444\u0430\u0439\u043b \u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0435 \u043c\u0435\u0441\u0442\u043e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e HTTP-\u0437\u0430\u043f\u0440\u043e\u0441\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0441 2.0.0 \u043f\u043e 2.3.37, c 2.5.0 \u043f\u043e 2.5.33 \u0438 \u0441 6.0.0 \u043f\u043e 6.3.0.2, \u0438 […]<\/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-121007","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\udd47Zranite\u013enos\u0165 v Apache Struts, ktor\u00e1 umo\u017e\u0148uje vykona\u0165 k\u00f3d na serveri | ProHoster","description":"Vo webovom r\u00e1mci Apache Struts, ktor\u00fd sa pou\u017e\u00edva na vytv\u00e1ranie webov\u00fdch aplik\u00e1ci\u00ed v jazyku Java s vyu\u017eit\u00edm paradigmy MVC (Model-View-Controller), bola zisten\u00e1 zranite\u013enos\u0165 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web-\u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0435 Apache Struts, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Java \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0430\u0440\u0430\u0434\u0438\u0433\u043c\u044b \u041cV\u0421 (Model-View-Controller), \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c 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