Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Elastic | Logstash | >= 6.4.0, < 6.8.15 |
Related Weaknesses (CWE)
References
- https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210629-0001/Third Party Advisory
- https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210629-0001/Third Party Advisory
FAQ
What is CVE-2021-22138?
CVE-2021-22138 is a vulnerability with a CVSS score of 3.7 (LOW). 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 ...
How severe is CVE-2021-22138?
CVE-2021-22138 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-22138?
Check the references section above for vendor advisories and patch information. Affected products include: Elastic Logstash.