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From "Erik Hatcher (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-2854) Limit remote streaming to update handlers
Date Thu, 27 Oct 2011 15:14:32 GMT

     [ https://issues.apache.org/jira/browse/SOLR-2854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik Hatcher updated SOLR-2854:
-------------------------------

    Attachment: SOLR-2854-extract_fix.patch

Here's a patch that fixes the extracting request handler to pull the stream properties after
getStream() is called.  Stepping through with a debugger showed that before this change the
metadata values were being set to null.
                
> Limit remote streaming to update handlers
> -----------------------------------------
>
>                 Key: SOLR-2854
>                 URL: https://issues.apache.org/jira/browse/SOLR-2854
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: David Smiley
>            Assignee: Erik Hatcher
>              Labels: security
>         Attachments: SOLR-2854-delay-stream-opening.patch, SOLR-2854-extract_fix.patch,
SOLR-2854_test_remote_streaming_not_done_on_select.patch
>
>
> I think the remote streaming feature should be limited to update request processors.
I'm not sure if there is even any use of using it on a /select, but even if there is, it's
an unintended security risk.  Observe this URL that is roughly the equivalent of an SQL injection
attack:
> http://localhost:8983/solr/select?q=*:*&indent=on&wt=ruby&rows=2&stream.url=http%3A%2F%2Flocalhost%3A8983%2Fsolr%2Fupdate%3Fcommit%3Dtruetream.body%3D%3Cdelete%3E%3Cquery%3E*%3A*%3C%2Fquery%3E%3C%2Fdelete%3E
> Yep; that's right -- this *search* deletes all the data in your Solr instance! If you
blocked off access to /update* based on IP then that isn't good enough.

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