CVE-2021-22138

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
elasticCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 47%
VendorProductVersion
elasticlogstash
6.4.0 ≤
𝑥
< 6.8.15
elasticlogstash
7.0.0 ≤
𝑥
< 7.12.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125
https://security.netapp.com/advisory/ntap-20210629-0001/