CVE-2023-31421

published 2023-10-26

CVE-2023-31421: It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid…

Priority P3 39 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C H I N A N

It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
elastic	apm_server	—	—
elastic	apm_server	8.0.0 – 8.9.2	—
elastic	beats	—	—
elastic	elastic_agent	—	—
elastic	elastic_agent	8.0.0 – 8.9.2	—
elastic	elastic_beats	8.0.0 – 8.9.2	—
elastic	elastic_fleet_server	8.0.0 – 8.9.2	—
elastic	fleet_server	—	—

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CWE-295