CVE-2021-22138

EPSS 0.5%CWE-295

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

13 May 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Elastic · Elasticsearch

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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/