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CVE-2023-31421

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

Published: Oct 26, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-295
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.3%
Top 81.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-295

Affected Products

elastic beatselasticDatabases
elastic agentelasticDatabases
apm serverelasticDatabases
elastic fleet serverelasticDatabases
Elastic BeatsElastic NV
Mixed
Enterprise Software / itsm-monitoring
elasticcommercialUSDatabasesaka elasticsearch co., elastic.co
elastic nvcommercialUSEnterprise Softwareaka elastic
and 7 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

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
discuss.elastic.co
https://www.elastic.co/community/security
elastic.co
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
discuss.elastic.co
and 3 more references View all →

Timeline

Published
Oct 26, 2023
Last Updated
Nov 21, 2024

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