Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 30.0%
CVSS Severity
CVSS v3 Score 3.7
CVSS v2 Score 4.3
References
Products affected by CVE-2021-22138
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cpe:2.3:a:elastic:logstash:6.4.0
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cpe:2.3:a:elastic:logstash:6.4.1
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cpe:2.3:a:elastic:logstash:6.4.2
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cpe:2.3:a:elastic:logstash:6.4.3
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cpe:2.3:a:elastic:logstash:6.5.0
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cpe:2.3:a:elastic:logstash:6.5.1
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cpe:2.3:a:elastic:logstash:6.5.2
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cpe:2.3:a:elastic:logstash:6.5.3
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cpe:2.3:a:elastic:logstash:6.5.4
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cpe:2.3:a:elastic:logstash:6.6.0
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cpe:2.3:a:elastic:logstash:6.6.1
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cpe:2.3:a:elastic:logstash:6.6.2
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cpe:2.3:a:elastic:logstash:6.7.0
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cpe:2.3:a:elastic:logstash:6.7.1
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cpe:2.3:a:elastic:logstash:6.7.2
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cpe:2.3:a:elastic:logstash:6.8.0
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cpe:2.3:a:elastic:logstash:6.8.1
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cpe:2.3:a:elastic:logstash:6.8.10
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cpe:2.3:a:elastic:logstash:6.8.11
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cpe:2.3:a:elastic:logstash:6.8.12
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cpe:2.3:a:elastic:logstash:6.8.13
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cpe:2.3:a:elastic:logstash:6.8.14
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cpe:2.3:a:elastic:logstash:6.8.2
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cpe:2.3:a:elastic:logstash:6.8.3
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cpe:2.3:a:elastic:logstash:6.8.4
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cpe:2.3:a:elastic:logstash:6.8.5
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cpe:2.3:a:elastic:logstash:6.8.6
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cpe:2.3:a:elastic:logstash:6.8.7
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cpe:2.3:a:elastic:logstash:6.8.8
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cpe:2.3:a:elastic:logstash:6.8.9
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cpe:2.3:a:elastic:logstash:7.0.0
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cpe:2.3:a:elastic:logstash:7.0.1
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cpe:2.3:a:elastic:logstash:7.1.0
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cpe:2.3:a:elastic:logstash:7.1.1
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cpe:2.3:a:elastic:logstash:7.10.0
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cpe:2.3:a:elastic:logstash:7.10.1
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cpe:2.3:a:elastic:logstash:7.10.2
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cpe:2.3:a:elastic:logstash:7.11.0
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cpe:2.3:a:elastic:logstash:7.11.1
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cpe:2.3:a:elastic:logstash:7.11.2
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cpe:2.3:a:elastic:logstash:7.2.0
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cpe:2.3:a:elastic:logstash:7.2.1
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cpe:2.3:a:elastic:logstash:7.3.0
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cpe:2.3:a:elastic:logstash:7.3.1
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cpe:2.3:a:elastic:logstash:7.3.2
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cpe:2.3:a:elastic:logstash:7.4.0
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cpe:2.3:a:elastic:logstash:7.4.1
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cpe:2.3:a:elastic:logstash:7.4.2
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cpe:2.3:a:elastic:logstash:7.5.0
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cpe:2.3:a:elastic:logstash:7.5.1
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cpe:2.3:a:elastic:logstash:7.5.2
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cpe:2.3:a:elastic:logstash:7.6.0
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cpe:2.3:a:elastic:logstash:7.6.1
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cpe:2.3:a:elastic:logstash:7.6.2
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cpe:2.3:a:elastic:logstash:7.7.0
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cpe:2.3:a:elastic:logstash:7.7.1
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cpe:2.3:a:elastic:logstash:7.8.0
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cpe:2.3:a:elastic:logstash:7.8.1
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cpe:2.3:a:elastic:logstash:7.9.0
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cpe:2.3:a:elastic:logstash:7.9.1
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cpe:2.3:a:elastic:logstash:7.9.2
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cpe:2.3:a:elastic:logstash:7.9.3