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https://issues.apache.org/jira/browse/SOLR-8307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010210#comment-15010210
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Shawn Heisey commented on SOLR-8307:
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I found more instances of XMLInputFactory in the codebase. Here are the
classes:
org.apache.solr.handler.DocumentAnalysisRequestHandler
org.apache.solr.handler.XmlUpdateRequestHandlerTest
org.apache.solr.handler.dataimport.XPathRecordReader
org.apache.solr.handler.loader.XMLLoader
org.apache.solr.update.AddBlockUpdateTest
org.apache.solr.util.EmptyEntityResolver
I do not know if all of these need attention or if some could be left alone.
It also appear that other XML parsers are in use. I found SAXParserFactory and
DocumentBuilderFactory with grep. The xerces library is in the ivy config. My
little patch isn't going to be enough. This is the document I'm using for
information:
https://www.owasp.org/index.php/XML_External_Entity_%28XXE%29_Processing
> XXE Vulnerability
> -----------------
>
> Key: SOLR-8307
> URL: https://issues.apache.org/jira/browse/SOLR-8307
> Project: Solr
> Issue Type: Bug
> Components: UI
> Affects Versions: 5.3
> Reporter: Adam Johnson
> Attachments: SOLR-8307.patch
>
>
> Use the drop-down in the left menu to select a core. Use the “Watch Changes”
> feature under the “Plugins / Stats” option. When submitting the changes, XML
> is passed in the “stream.body” parameter and is vulnerable to XXE.
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