Description
Apache Solr uses a PKI based mechanism to secure inter-node communication when security is enabled. It is possible to create a specially crafted node name that does not exist as part of the cluster and point it to a malicious node. This can trick the nodes in cluster to believe that the malicious node is a member of the cluster. So, if Solr users have enabled BasicAuth authentication mechanism using the BasicAuthPlugin or if the user has implemented a custom Authentication plugin, which does not implement either "HttpClientInterceptorPlugin" or "HttpClientBuilderPlugin", his/her servers are vulnerable to this attack. Users who only use SSL without basic authentication or those who use Kerberos are not affected.
Metrics
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Solr | 5.3 to 5.5.4; 6.0 to 6.5.1 |
References
- http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3EMailing List, Vendor Advisory
- http://www.securityfocus.com/bid/99485Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20181127-0003/
- http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3EMailing List, Vendor Advisory
- http://www.securityfocus.com/bid/99485Third Party Advisory, VDB Entry
- https://security.netapp.com/advisory/ntap-20181127-0003/
Timeline
- Published
- Jul 7, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified