{"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\/fr\/blog\/news\/uyazvimosti-v-web-frejmvorke-grails-i-ruby-module-tzinfo","title":{"rendered":"Vuln\u00e9rabilit\u00e9s dans le framework web Grails et le module Ruby TZInfo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans le framework web Grails, con\u00e7u pour le d\u00e9veloppement d'applications web selon la paradigme MVC en Java, Groovy et d'autres langages pour la JVM, une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte, permettant d'ex\u00e9cuter \u00e0 distance son propre code dans l'environnement o\u00f9 l'application web s'ex\u00e9cute. L'exploitation de la vuln\u00e9rabilit\u00e9 se fait par l'envoi d'une requ\u00eate sp\u00e9cialement formul\u00e9e, donnant acc\u00e8s au ClassLoader \u00e0 l'attaquant. Le probl\u00e8me est caus\u00e9 par un d\u00e9faut dans la logique de liaison de donn\u00e9es (data-binding), utilis\u00e9e tant lors de la cr\u00e9ation d'objets que lors de la liaison manuelle via bindData. Ce probl\u00e8me a \u00e9t\u00e9 corrig\u00e9 dans les versions 3.3.15, 4.1.1, 5.1.9 et 5.2.1. <\/p>\n

On peut \u00e9galement noter une vuln\u00e9rabilit\u00e9 dans le module Ruby tzinfo, permettant de charger le contenu de n'importe quel fichier, dans la mesure o\u00f9 les droits d'acc\u00e8s de l'application cibl\u00e9e le permettent. Cette vuln\u00e9rabilit\u00e9 est li\u00e9e \u00e0 l'absence de v\u00e9rification ad\u00e9quate concernant l'utilisation de caract\u00e8res sp\u00e9ciaux dans le nom du fuseau horaire sp\u00e9cifi\u00e9 dans la m\u00e9thode TZInfo::Timezone.get. Le probl\u00e8me concerne les applications qui transmettent des donn\u00e9es externes non v\u00e9rifi\u00e9es \u00e0 TZInfo::Timezone.get. Par exemple, pour lire le fichier \/tmp\/payload, on peut indiquer une valeur comme \u00ab foo\n\/..\/..\/..\/tmp\/payload \u00bb.
\n
Source : 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, 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\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\udd47Vuln\u00e9rabilit\u00e9s dans le framework web Grails et le module Ruby TZInfo | ProHoster","description":"Dans le framework web Grails, con\u00e7u pour le d\u00e9veloppement d'applications web selon la 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