{"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\/ro\/blog\/news\/uyazvimost-v-apache-struts-pozvolyayushhaya-vypolnit-kod-na-servere","title":{"rendered":"Vulnerabilitate \u00een Apache Struts care permite executarea de cod pe server","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00cen cadrul framework-ului web Apache Struts, utilizat pentru dezvoltarea de aplica\u021bii web \u00een limbajul Java folosind paradigma MVC (Model-View-Controller), a fost identificat\u0103 o vulnerabilitate (CVE-2024-53677). Aceast\u0103 vulnerabilitate permite unui atacator extern s\u0103 scrie un fi\u0219ier \u00een orice loca\u021bie a sistemului de fi\u0219iere de pe server prin trimiterea unei cereri HTTP formate \u00een mod special. Problema afecteaz\u0103 versiunile de la 2.0.0 la 2.3.37, de la 2.5.0 la 2.5.33 \u0219i de la 6.0.0 la 6.3.0.2 \u0219i se manifest\u0103 \u00een aplica\u021biile care utilizeaz\u0103 componenta FileUploadInterceptor pentru \u00eenc\u0103rcarea fi\u0219ierelor pe server. <\/p>\n

Vulnerabilitatea este cauzat\u0103 de lipsa unei verific\u0103ri adecvate a parametrilor transmi\u0219i \u00een timpul \u00eenc\u0103rc\u0103rii fi\u0219ierelor. Dac\u0103 exist\u0103 acces la func\u021biile de \u00eenc\u0103rcare a fi\u0219ierelor din interfa\u021ba web implementat\u0103 pe baza Apache Struts, atacatorul poate specifica o valoare de tipul \u00ab..\\\/..\\\/..\\\/..\\\/..\\\/webapps\\\/ROOT\u00bb \u0219i poate ob\u021bine salvarea fi\u0219ierului \u00een afara directorului pentru stocarea datelor \u00eenc\u0103rcate (prototipul exploatului). Ob\u021bin\u00e2nd posibilitatea de a scrie fi\u0219iere \u00een p\u0103r\u021bi arbitrary ale FS, se pot organiza executarea comenzilor proprii pe server<\/a>, rescriind scripturi sau fi\u0219iere de configura\u021bie, \u00een func\u021bie de permisiunile utilizatorului sub care ruleaz\u0103 aplica\u021bia web. Dac\u0103 aplica\u021bia web ruleaz\u0103 \u00eentr-un container Apache Tomcat, care este lansat cu drepturi de root, atacatorul poate ob\u021bine acces privilegiat la sistem. <\/p>\n

Vulnerabilit\u0103\u021bile din Apache Struts sunt importante, deoarece acest framework este foarte popular \u00een sistemele corporative accesibile prin web. Potrivit statisticilor RedMonk, framework-ul Apache Struts a fost utilizat \u00een aplica\u021biile web de 65% din companiile incluse \u00een lista Fortune 100. \u00cen 2017, un atac asupra sistemului informa\u021bional al companiei Equifax, care utiliza o versiune vulnerabil\u0103 de Apache Struts, a dus la scurgerea datelor personale a 143 milioane de locuitori din SUA.
\n
Sursa: opennet.ro<\/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\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\udd47 Vulnerabilitate \u00een Apache Struts, care permite execu\u021bia de cod pe server | ProHoster","description":"\u00cen cadrul framework-ului web Apache Struts, utilizat pentru dezvoltarea de aplica\u021bii web \u00een limbajul Java folosind paradigma MVC (Model-View-Controller), a fost identificat\u0103 o vulnerabilitate 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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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