CVE-2021-22138

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.

Category

3.7
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.25%
Vendor Advisory elastic.co
Affected: Elastic Elasticsearch
Published at:
Updated at:

References

Link Tags
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 vendor advisory
https://security.netapp.com/advisory/ntap-20210629-0001/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-22138?
CVE-2021-22138 has been scored as a low severity vulnerability.
How to fix CVE-2021-22138?
To fix CVE-2021-22138, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22138 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-22138 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22138?
CVE-2021-22138 affects Elastic Elasticsearch.
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