CVE Catalog

CVE-2017-9803

High
Published: Translated: NVD NIST

Summary

Apache Solr's Kerberos plugin can be configured to use delegation tokens, allowing an application to reuse the authentication of an end-user or another application. There are two issues with this functionality that may lead to a leak of security configuration.

Risk Assessment

Access to the security configuration can be leaked to users other than the Solr super user, creating a risk of privilege escalation by malicious users, which may lead to exposure or modification of private data and disruption of operations in the Solr cluster.

Recommendation

It is recommended to upgrade to Apache Solr version 6.6.1 or later to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

Apache Solr's Kerberos plugin can be configured to use delegation tokens, which allows an application to reuse the authentication of an end-user or another application. There are two issues with this functionality (when using SecurityAwareZkACLProvider type of ACL provider e.g. SaslZkACLProvider). Firstly, access to the security configuration can be leaked to users other than the solr super user. Secondly, malicious users can exploit this leaked configuration for privilege escalation to further expose/modify private data and/or disrupt operations in the Solr cluster. The vulnerability is fixed from Apache Solr 6.6.1 onwards.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS