CVE-2018-8010
There is a XML external entity expansion (XXE) vulnerability in Apache Solr config files
Also known as GHSA-rc9v-h28f-jcmf
Published 8 y ago · modified 4 mo ago · JSON
Summary
This vulnerability in Apache Solr 6.0.0 to 6.6.3, 7.0.0 to 7.3.0 relates to an XML external entity expansion (XXE) in Solr config files (solrconfig.xml, schema.xml, managed-schema). In addition, Xinclude functionality provided in these config files is also affected in a similar way. The vulnerability can be used as XXE using file/ftp/http protocols in order to read arbitrary local files from the Solr server or the internal network. Users are advised to upgrade to either Solr 6.6.4 or Solr 7.3.1 releases both of which address the vulnerability. Once upgrade is complete, no other steps are required. Those releases only allow external entities and Xincludes that refer to local files / zookeeper resources below the Solr instance directory (using Solr's ResourceLoader); usage of absolute URLs is denied. Keep in mind, that external entities and XInclude are explicitly supported to better structure config files in large installations. Before Solr 6 this was no problem, as config files were not accessible through the APIs.
Exploit prediction (EPSS)
3.71% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.solr:solr-core | >=6.6.0, <6.6.4 >=7.0.0, <7.3.1 | 6.6.4 7.3.1 |
Affected products
- Apache Software Foundation Apache Solr
Classification
- Weakness
- CWE-611 Improper Restriction of XML External Entity Reference
References
- mail-archives.apache.org /mod_mbox/www-announce/201805.mbox/%3C08a801d3f0f9%24df46d300%249dd47900%24%40apache.org%3 · x_refsource_MISC, x_transferred
- securityfocus.com /bid/104239 · vdb-entry, x_refsource_BID, x_transferred
- lists.apache.org /thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.luce · mailing-list, x_refsource_MLIST, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2018-8010 · advisory
- github.com /apache/lucene-solr/commit/4ba409e0ff3dc38aad88f7b7ad69a76325272b8 · web
- github.com /apache/lucene-solr/commit/6c4e45e28494d4d4d04fb89852d18c86fa3d5f8 · web
- github.com /apache/lucene-solr/commit/6d082d5743dee7e08a86b3f2ef03bc025112512 · web
- github.com /apache/lucene-solr/commit/96f079b4b47eaadff65c7aaf0e5bafe68e30ec3 · web
- github.com /advisories/GHSA-rc9v-h28f-jcmf · advisory
- issues.apache.org /jira/browse/SOLR-12316 · web
- lists.apache.org /thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5@%3Csolr-user.lucene · web
Sources
- CVE List: CVE-2018-8010
- GitHub Advisory: GHSA-rc9v-h28f-jcmf
- NVD: CVE-2018-8010
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