CVE-2023-31421

Severity CVSS v4.0:

Pending analysis

Type:

CWE-295 Improper Certificate Validation

Publication date:

26/10/2023

Last modified:

15/02/2024

Description

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&#39;s IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:elastic:elastic_beats::::::::	8.0.0 (including)	8.9.2 (including)
cpe:2.3:a:elastic:elastic_agent::::::::	8.0.0 (including)	8.9.2 (including)
cpe:2.3:a:elastic:apm_server::::::::	8.0.0 (including)	8.9.2 (including)
cpe:2.3:a:elastic:elastic_fleet_server::::::::	8.0.0 (including)	8.9.2 (including)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-31421

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools