Red Hat Security Advisory 2012-1058-01 - RESTEasy provides various frameworks to help you build RESTful web services and RESTful Java applications. It was found that RESTEasy was vulnerable to XML External Entity attacks. If a remote attacker submitted a request containing an external XML entity to a RESTEasy endpoint, the entity would be resolved, allowing the attacker to read files accessible to the user running the application server. This flaw affected DOM Document and JAXB input.
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