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  • Apache Solr can leak certain passwords due to System Property redaction logic inconsistencies (CVE-2023-50291)

Apache Solr can leak certain passwords due to System Property redaction logic inconsistencies (CVE-2023-50291)

  

Posted: February 16, 2024

    

Vendor:

The Apache Software Foundation

Severity:

Moderate

Versions Affected:

  • Apache Solr 6.0.0 through 8.11.2
  • Apache Solr 9.0.0 before 9.3.0

Description:

Insufficiently Protected Credentials vulnerability in Apache Solr.

This issue affects Apache Solr: from 6.0.0 through 8.11.2, from 9.0.0 before 9.3.0. One of the two endpoints that publishes the Solr process' Java system properties, /admin/info/properties, was only setup to hide system properties that had "password" contained in the name. There are a number of sensitive system properties, such as "basicauth" and "aws.secretKey" do not contain "password", thus their values were published via the "/admin/info/properties" endpoint. This endpoint populates the list of System Properties on the home screen of the Solr Admin page, making the exposed credentials visible in the UI.

This /admin/info/properties endpoint is protected under the "config-read" permission. Therefore, Solr Clouds with Authorization enabled will only be vulnerable through logged-in users that have the "config-read" permission. Users are recommended to upgrade to version 9.3.0 or 8.11.3, which fixes the issue. A single option now controls hiding Java system property for all endpoints, "-Dsolr.hiddenSysProps". By default all known sensitive properties are hidden (including "-Dbasicauth"), as well as any property with a name containing "secret" or "password".

Users who cannot upgrade can also use the following Java system property to fix the issue:

-Dsolr.redaction.system.pattern=".*(password|secret|basicauth).*"

Mitigation:

Users are recommended to upgrade to version 8.11.3, 9.3.0 or later, which has consistent systemProperty redaction logic.

Credit:

Michael Taggart (reporter)

References:

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