{"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\/de\/blog\/news\/uyazvimosti-v-web-frejmvorke-grails-i-ruby-module-tzinfo","title":{"rendered":"Sicherheitsanf\u00e4lligkeiten im Web-Framework Grails und Ruby-Modul TZInfo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Im Web-Framework Grails, das f\u00fcr die Entwicklung von Webanwendungen gem\u00e4\u00df dem MVC-Paradigma in Java, Groovy und anderen JVM-Sprachen konzipiert ist, wurde eine Schwachstelle entdeckt, die es erm\u00f6glicht, eigenen Code aus der Ferne in der Umgebung auszuf\u00fchren, in der die Webanwendung l\u00e4uft. Die Ausnutzung der Schwachstelle erfolgt durch das Senden einer speziell gestalteten Anfrage, die dem Angreifer Zugang zum ClassLoader gew\u00e4hrt. Das Problem wird durch einen Mangel an Logik bei der Datenbindung (data-binding) verursacht, die sowohl beim Erstellen von Objekten als auch bei der manuellen Bindung \u00fcber bindData verwendet wird. Das Problem wurde in den Versionen 3.3.15, 4.1.1, 5.1.9 und 5.2.1 behoben. <\/p>\n

Zus\u00e4tzlich kann die Schwachstelle im Ruby-Modul tzinfo erw\u00e4hnt werden, die es erm\u00f6glicht, den Inhalt beliebiger Dateien entsprechend den Zugriffsrechten der angegriffenen Anwendung zu laden. Die Schwachstelle steht im Zusammenhang mit fehlender angemessener \u00dcberpr\u00fcfung der Verwendung von Sonderzeichen im Namen der Zeitzone, der im Methode TZInfo::Timezone.get angegeben wird. Das Problem betrifft Anwendungen, die in TZInfo::Timezone.get nicht \u00fcberpr\u00fcfte externe Daten \u00fcbergeben. So kann beispielsweise zum Lesen der Datei \/tmp\/payload ein Wert wie \u201efoo\n\/..\/..\/..\/tmp\/payload\u201c angegeben werden.
\n
Quelle: 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\udd47Sicherheitsanf\u00e4lligkeiten im Web-Framework Grails und Ruby-Modul TZInfo | ProHoster","description":"Im Web-Framework Grails, das f\u00fcr die Entwicklung von Webanwendungen gem\u00e4\u00df dem 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