CVE-2023-31421CWE-295

Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue

Medium · published October 26, 2023

CVSS v3.1
5.9
EPSS
0%
Percentile
24.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00323 · 24.2th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2023-10-26T03:10Z
EPSS history
Timeline
  • 26 OCT 03:10Z
    Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue
    cvelistv5