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From "Donald Kwakkel (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-6217) JmsPullPoint does not protect against external entities
Date Thu, 22 Jan 2015 15:35:36 GMT

    [ https://issues.apache.org/jira/browse/CXF-6217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14287615#comment-14287615
] 

Donald Kwakkel commented on CXF-6217:
-------------------------------------

Found more unmarshall occurences which seems not to be protected against external entity injection.
e.g. in JmsSubscription and AtomPojoProvider.

> JmsPullPoint does not protect against external entities
> -------------------------------------------------------
>
>                 Key: CXF-6217
>                 URL: https://issues.apache.org/jira/browse/CXF-6217
>             Project: CXF
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 3.0.1
>            Reporter: Donald Kwakkel
>
> I am not sure if this is by design, but the unmarshell below does not prevent nor limit
external entities resolution. This can expose the parser to an XML External Entities attack.
> JmsPullPoint:
>  protected synchronized List<NotificationMessageHolderType> getMessages(int max)

>         throws ResourceUnknownFault, UnableToGetMessagesFault {
>         try {
>             if (max == 0) {
>                 max = 256;
>             }
>             initSession();
>             List<NotificationMessageHolderType> messages = new ArrayList<NotificationMessageHolderType>();
>             for (int i = 0; i < max; i++) {
>                 Message msg = consumer.receiveNoWait();
>                 if (msg == null) {
>                     break;
>                 }
>                 TextMessage txtMsg = (TextMessage) msg;
>                 StringReader reader = new StringReader(txtMsg.getText());
>                 Notify notify = (Notify) jaxbContext.createUnmarshaller().unmarshal(reader);
>                 messages.addAll(notify.getNotificationMessage());
>             }
>             return messages;
>         }



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