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Privilege Escalation Affecting org.apache.solr:solr-core package, versions [6.2.0,6.6.1)

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.06% (24th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-JAVA-ORGAPACHESOLR-31561
  • published 5 Nov 2017
  • disclosed 2 Aug 2017
  • credit Hrishikesh Gadre
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Introduced: 2 Aug 2017

CVE-2017-9803 Open this link in a new tab
CWE-287 Open this link in a new tab

How to fix?

Upgrade org.apache.solr:solr-core to version 6.6.1 or higher.

Overview

org.apache.solr:solr-core is an open source enterprise search platform built on Apache Lucene.

Affected versions of the package are vulnerable to Privilege Escalation. 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 Solr 6.6.1 onwards.