CVE-2022-0759

Description

A flaw was found in all versions of kubeclient up to (but not including) v4.9.3, the Ruby client for Kubernetes REST API, in the way it parsed kubeconfig files. When the kubeconfig file does not configure custom CA to verify certs, kubeclient ends up accepting any certificate (it wrongly returns VERIFY_NONE). Ruby applications that leverage kubeclient to parse kubeconfig files are susceptible to Man-in-the-middle attacks (MITM).

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a kubeclient
Published at:
Updated at:

References

Link Tags
https://github.com/ManageIQ/kubeclient/issues/554 patch third party advisory issue tracking
https://github.com/ManageIQ/kubeclient/issues/555 patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2022-0759?
CVE-2022-0759 has been scored as a high severity vulnerability.
How to fix CVE-2022-0759?
To fix CVE-2022-0759, 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-2022-0759 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-0759 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-2022-0759?
CVE-2022-0759 affects n/a kubeclient.
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