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From "Christofer Dutz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLEX-35290) Deserialization of Untrusted Data via Externalizable.readExternal
Date Mon, 03 Apr 2017 12:13:42 GMT

    [ https://issues.apache.org/jira/browse/FLEX-35290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15953370#comment-15953370

Christofer Dutz commented on FLEX-35290:

Ups ... well what should I say? You are absolutely correct ... I'll take care of that as soon
as possible.

> Deserialization of Untrusted Data via Externalizable.readExternal
> -----------------------------------------------------------------
>                 Key: FLEX-35290
>                 URL: https://issues.apache.org/jira/browse/FLEX-35290
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: BlazeDS
>    Affects Versions: BlazeDS 4.7.2
>            Reporter: Markus Wulftange
>            Assignee: Christofer Dutz
>            Priority: Critical
>              Labels: security
>             Fix For: Apache BlazeDS 4.7.3
> The AMF deserialization implementation of Flex BlazeDS is vulnerable to Deserialization
of Untrusted Data via {{Externalizable.readExternal(ObjectInput)}}.
> By sending a specially crafted AMF message, it is possible to make the server establish
a connection to an endpoint specified in the message and request an RMI remote object from
that endpoint. This can result in the execution of arbitrary code on the server via Java deserialization.

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