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Elasticsearch and Liferay Enterprise Search Security Advisory: July 12, 2021

The following issues may affect the functionality of your Liferay DXP, Liferay Enterprise Search environment and your Elastic Stack.

Deployments which might be impacted

  • Elasticsearch 6.x before 6.8.17
  • Elasticsearch 7.x before 7.13.3

Vulnerability Information

Elasticsearch Denial of Service issue (ESA-2021-15)

An uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.

Affected Versions:

Elasticsearch versions prior to 7.13.3 and 6.8.17

Solutions and Mitigations:

Users should update their version of Elasticsearch to 7.13.3 or 6.8.17.

CVSSv3: 5.7 - AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE ID: CVE-2021-22144

CWE: CWE-674: Uncontrolled Recursion

Additional Information

Liferay DXP and Liferay Commerce products are not using Elasticsearch's Grok capabilities out-of-the-box.

Search Engine Compatibility Matrix

Reference the information here for the detailed Elasticsearch compatibility including the compatible connector versions and required patch levels.

Vendor References

https://discuss.elastic.co/t/elasticsearch-7-13-3-and-6-8-17-security-update/278100


Elastic, Elasticsearch, and X-Pack are trademarks of Elasticsearch BV, registered in the U.S. and in other countries.

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