Published: 13/05/2021 Updated: 04/06/2022

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 3.7 | Impact Score: 1.4 | Exploitability Score: 2.2

VMScore: 383

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

In Logstash versions after 6.4.0 and prior to 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.

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elastic logstash

A TLS certificate validation flaw was found in the monitoring feature of Logstash versions 640 and before versions 6815 and 7120 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 monit ...

CWE-295 https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 https://security.netapp.com/advisory/ntap-20210629-0001/https://nvd.nist.gov https://security.archlinux.org/CVE-2021-22138

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CVE-2021-22138

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