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CVE-2021-22138 Details

Description

In Logstash versions after 6.4.0 and before 6.8.15 and 7.12.0 a TLS certificate validation flaw was found in the monitoring feature. When specifying a trusted server CA certificate Logstash would not properly verify the certificate returned by the monitoring server. This could result in a man in the middle style attack against the Logstash monitoring data.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 CVEVendor Advisory
https://security.netapp.com/advisory/ntap-20210629-0001/ CVEThird Party Advisory
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 [email protected]Vendor Advisory
https://security.netapp.com/advisory/ntap-20210629-0001/ [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-295Improper Certificate Validation[email protected]
CWE-295Improper Certificate Validation[email protected]

Affected Products

ProductVersions
elastic logstash
>= 6.4.0, < 6.8.15
>= 7.0.0, < 7.12.0

CPE

  • cpe:2.3:a:elastic:logstash:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-22138
NVD Published Date:
May 13, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]