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From "Mike Yoder (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COLLECTIONS-580) Arbitrary remote code execution with InvokerTransformer
Date Sat, 21 Nov 2015 00:20:12 GMT

    [ https://issues.apache.org/jira/browse/COLLECTIONS-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15019162#comment-15019162
] 

Mike Yoder commented on COLLECTIONS-580:
----------------------------------------

"No reflection is used anymore" sounds like a really good thing. Might I ask when you expect
a release of collecions4 to be out?  Thanks!

> Arbitrary remote code execution with InvokerTransformer
> -------------------------------------------------------
>
>                 Key: COLLECTIONS-580
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-580
>             Project: Commons Collections
>          Issue Type: Bug
>    Affects Versions: 3.0, 4.0
>            Reporter: Philippe Marschall
>             Fix For: 3.2.2, 4.1
>
>         Attachments: COLLECTIONS-580.patch
>
>
> With {{InvokerTransformer}} serializable collections can be build that execute arbitrary
Java code. {{sun.reflect.annotation.AnnotationInvocationHandler#readObject}} invokes {{#entrySet}}
and {{#get}} on a deserialized collection. If you have an endpoint that accepts serialized
Java objects (JMX, RMI, remote EJB, ...) you can combine the two to create arbitrary remote
code execution vulnerability.
> I don't know of a good fix short of removing {{InvokerTransformer}} or making it not
Serializable. Both probably break existing applications.
> This is not my research, but has been discovered by other people.
> https://github.com/frohoff/ysoserial
> http://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/



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