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From "Thomas Neidhart (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COLLECTIONS-580) Arbitrary remote code execution with InvokerTransformer
Date Fri, 13 Nov 2015 20:10:12 GMT

    [ https://issues.apache.org/jira/browse/COLLECTIONS-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15004640#comment-15004640
] 

Thomas Neidhart commented on COLLECTIONS-580:
---------------------------------------------

Committed in r1714262 for collections4: unsafe classes do not implement the Serializable interface
anymore.

> 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
>         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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