CVE-2020-13941: Input Validation
First published: Mon Aug 17 2020(Updated: )
Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Solr | <8.6.0 |
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Reference Links
- https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1@%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/rbcd9dff009ed19ffcc2b09784595fc1098fc802a5472f81795f893be@%3Ccommits.lucene.apache.org%3E
- https://lists.apache.org/thread.html/rc400db37710ee79378b6c52de3640493ff538c2beb41cefdbbdf2ab8@%3Ccommits.submarine.apache.org%3E
- https://lists.apache.org/thread.html/rf54e7912b7d2b72c63ec54a7afa4adcbf16268dcc63253767dd67d60%40%3Cgeneral.lucene.apache.org%3E
- https://lists.apache.org/thread.html/rbcd9dff009ed19ffcc2b09784595fc1098fc802a5472f81795f893be%40%3Ccommits.lucene.apache.org%3E
- https://lists.apache.org/thread.html/rc400db37710ee79378b6c52de3640493ff538c2beb41cefdbbdf2ab8%40%3Ccommits.submarine.apache.org%3E
- https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E
Frequently Asked Questions
What is CVE-2020-13941?
CVE-2020-13941 is a vulnerability in Apache Solr that allows unauthorized access to the Replication handler.
How severe is CVE-2020-13941?
CVE-2020-13941 has a severity rating of 8.8 out of 10.
Which software versions are affected by CVE-2020-13941?
Apache Solr versions up to and excluding 8.6.0 are affected by CVE-2020-13941.
How can I fix CVE-2020-13941?
To fix CVE-2020-13941, upgrade to Solr version 8.6.0 or later.
Where can I find more information about CVE-2020-13941?
You can find more information about CVE-2020-13941 in the references provided.
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