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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
apache solr 5.5.2 |
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apache solr 5.5.3 |
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apache solr 6.3.0 |
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apache solr 6.4.0 |
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apache solr 5.3.1 |
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apache solr 5.3.2 |
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apache solr 5.5.4 |
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apache solr 6.0.0 |
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apache solr 6.4.1 |
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apache solr 6.4.2 |
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apache solr 5.4.0 |
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apache solr 5.4.1 |
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apache solr 6.0.1 |
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apache solr 6.1.0 |
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apache solr 6.5.0 |
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apache solr 6.5.1 |
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apache solr 5.3.0 |
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apache solr 5.5.0 |
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apache solr 5.5.1 |
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apache solr 6.2.0 |
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apache solr 6.2.1 |
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