| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| org.apache.solr:solr-core | ≥ 5.3.0, < 5.5.5≥ 6.0.0, < 6.6.0 | 5.5.56.6.0 |
| solr | = 5.3.0= 5.3.1= 5.3.2= 5.4.0= 5.4.1= 5.5.0= 5.5.1= 5.5.2= 5.5.3= 5.5.4= 6.0.0= 6.0.1= 6.1.0= 6.2.0= 6.2.1= 6.3.0= 6.4.0= 6.4.1= 6.4.2= 6.5.0= 6.5.1 |
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.
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