APM Server Insertion of Sensitive Information into Log File (ESA-2024-03)
An issue was discovered whereby APM Server could log at ERROR level, a response from Elasticsearch indicating that indexing the document failed and that response would contain parts of the original document. Depending on the nature of the document that the APM Server attempted to ingest, this could lead to the insertion of sensitive or private information in the APM Server logs.
APM Server versions before 8.12.1
Solutions and Mitigations:
The issue is resolved in version 8.12.1.
Reviewing Logs for Sensitive Information
Users can search for instances of these documents and determine whether any sensitive information has been leaked in APM Server logs by searching for the following string
Preview of field's value:
Severity: CVSSv3: 5.7(Medium) - AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE ID: CVE-2024-23448