CVE-2023-31421
Elastic Vulnerability: Insecure Server Certificate Validation in Beats, Elastic Agent, APM Server, and Fleet Server
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's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.
INFO
Published Date :
Oct. 26, 2023, 4:15 a.m.
Last Modified :
Feb. 15, 2024, 7:39 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2023-31421
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-31421.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-31421 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-31421 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Nov. 08, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://discuss.elastic.co/t/beats-elastic-agent-apm-server-and-fleet-server-8-10-1-security-update-improper-certificate-validation-issue-esa-2023-16/343385 No Types Assigned https://discuss.elastic.co/t/beats-elastic-agent-apm-server-and-fleet-server-8-10-1-security-update-improper-certificate-validation-issue-esa-2023-16/343385 Vendor Advisory Changed Reference Type https://www.elastic.co/community/security No Types Assigned https://www.elastic.co/community/security Vendor Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:elastic:elastic_beats:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.9.2 Added CPE Configuration OR *cpe:2.3:a:elastic:elastic_agent:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.9.2 Added CPE Configuration OR *cpe:2.3:a:elastic:elastic_apm_server:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.9.2 Added CPE Configuration OR *cpe:2.3:a:elastic:elastic_fleet_server:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.9.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-31421 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-31421
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.02%
score
0.23445
percentile