{"id":104694,"date":"2022-07-24T21:36:39","date_gmt":"2022-07-24T19:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-web-frejmvorke-grails-i-ruby-module-tzinfo"},"modified":"2022-07-24T21:36:39","modified_gmt":"2022-07-24T19:36:39","slug":"uyazvimosti-v-web-frejmvorke-grails-i-ruby-module-tzinfo","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/uyazvimosti-v-web-frejmvorke-grails-i-ruby-module-tzinfo","title":{"rendered":"Vulnerabilidades en el marco web Grails y en el m\u00f3dulo Ruby TZInfo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

En el framework web Grails, dise\u00f1ado para el desarrollo de aplicaciones web seg\u00fan la paradigma MVC en Java, Groovy y otros lenguajes para JVM, se ha identificado una vulnerabilidad que permite ejecutar c\u00f3digo de forma remota en el entorno donde se ejecuta la aplicaci\u00f3n web. La explotaci\u00f3n de la vulnerabilidad se realiza mediante el env\u00edo de una solicitud especialmente dise\u00f1ada, que brinda al atacante acceso al ClassLoader. El problema se debe a una omisi\u00f3n en la l\u00f3gica de vinculaci\u00f3n de datos (data-binding), que se utiliza tanto al crear objetos como en la vinculaci\u00f3n manual mediante bindData. El problema ha sido resuelto en las versiones 3.3.15, 4.1.1, 5.1.9 y 5.2.1. <\/p>\n

Adem\u00e1s, se puede se\u00f1alar una vulnerabilidad en el m\u00f3dulo Ruby tzinfo, que permite cargar el contenido de cualquier archivo, seg\u00fan los permisos de acceso de la aplicaci\u00f3n atacada. La vulnerabilidad est\u00e1 relacionada con la falta de una verificaci\u00f3n adecuada del uso de caracteres especiales en el nombre de la zona horaria, que se indica en el m\u00e9todo TZInfo::Timezone.get. Este problema afecta a las aplicaciones que env\u00edan datos externos no verificados a TZInfo::Timezone.get. Por ejemplo, para leer el archivo \/tmp\/payload, se puede especificar un valor como \u00abfoo\n\/..\/..\/..\/tmp\/payload\u00bb.
\n
Fuente: 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 Grails, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u043c \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043f\u0430\u0440\u0430\u0434\u0438\u0433\u043c\u043e\u0439 MVC \u043d\u0430 Java, Groovy \u0438 \u043d\u0430 \u0434\u0440\u0443\u0433\u0438\u0445 \u044f\u0437\u044b\u043a\u0430\u0445 \u0434\u043b\u044f JVM, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u0432\u043e\u0439 \u043a\u043e\u0434 \u0432 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u0438, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0441\u044f \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 \u0437\u0430\u043f\u0440\u043e\u0441\u0430, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0434\u043e\u0441\u0442\u0443\u043f \u043a ClassLoader. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043d\u0435\u0434\u043e\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0432 \u043b\u043e\u0433\u0438\u043a\u0435 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 (data-binding), […]<\/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-104694","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\udd47Vulnerabilidades en el framework web Grails y el m\u00f3dulo Ruby TZInfo | ProHoster","description":"En el framework web Grails, dise\u00f1ado para el desarrollo de aplicaciones web seg\u00fan la paradigma MVC 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