CVE-2018-8010
Severity CVSS v4.0:
Pending analysis
Type:
CWE-611
Improper Restriction of XML External Entity Reference ('XXE')
Publication date:
21/05/2018
Last modified:
07/11/2023
Description
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.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Base Score 2.0
2.10
Severity 2.0
LOW
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:* | 6.0.0 (including) | 6.6.3 (including) |
| cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:* | 7.0.0 (including) | 7.3.0 (including) |
To consult the complete list of CPE names with products and versions, see this page