Remote code execution occurs in Apache Solr before 7.1 with Apache Lucene before 7.1 by exploiting XXE in conjunction with use of a Config A

Summary

Remote code execution occurs in Apache Solr before 7.1 with Apache Lucene before 7.1 by exploiting XXE in conjunction with use of a Config API add-listener command to reach the RunExecutableListener class. Elasticsearch, although it uses Lucene, is NOT vulnerable to this. Note that the XML external entity expansion vulnerability occurs in the XML Query Parser which is available, by default, for any query request with parameters deftype=xmlparser and can be exploited to upload malicious data to the /upload request handler or as Blind XXE using ftp wrapper in order to read arbitrary local files from the Solr server. Note also that the second vulnerability relates to remote code execution using the RunExecutableListener available on all affected versions of Solr.

Timeline

1. Oct 14, 2017, 9:00 PM UTCCVE published
2. Oct 17, 2017Public exploit on Exploit-DB

   EDB-43009

3. Aug 5, 2024, 6:43 PM UTCRecord last updated
4. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• n/a Apache Solr before 7.1 with Apache Lucene before 7.1

  From lucene-solr · fixed in 5.5.5

• n/a Apache Solr before 7.1 with Apache Lucene before 7.1

  From lucene-solr · fixed in 5.3.1-redhat-2

• org.apache.solr:solr-coreMaven

  From 7.0.0 · fixed in 7.1.0

• org.apache.solr:solr-coreMaven

  From 6.0.0 · fixed in 6.6.2

• org.apache.solr:solr-coreMaven

  From 5.5.0 · fixed in 5.5.5

References 28