CVE-2023-6687

Name of the Vulnerable Software and Affected Versions Elastic Agent versions prior to 7.17.16 Elastic Agent versions prior to 8.11.3

Description An issue was discovered whereby Elastic Agent would log a raw event in its own logs at the WARN or ERROR level if ingesting that event to Elasticsearch failed with any 4xx HTTP status code except 409 or 429. Depending on the nature of the event that Elastic Agent attempted to ingest, this could lead to the insertion of sensitive or private information in the Elastic Agent logs.

Recommendations For versions prior to 7.17.16, update to version 7.17.16 to prevent this issue by limiting these types of logs to DEBUG level logging, which is disabled by default. For versions prior to 8.11.3, update to version 8.11.3 to prevent this issue by limiting these types of logs to DEBUG level logging, which is disabled by default.