CVE-2019-11243

Description

In Kubernetes v1.12.0-v1.12.4 and v1.13.0, the rest.AnonymousClientConfig() method returns a copy of the provided config, with credentials removed (bearer token, username/password, and client certificate/key data). In the affected versions, rest.AnonymousClientConfig() did not effectively clear service account credentials loaded using rest.InClusterConfig()

Remediation

Workaround:

  • Clear the config.WrapTransport and config.Transport fields in addition to calling rest.AnonymousClientConfig()

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.24%
Third-Party Advisory securityfocus.com Third-Party Advisory github.com Third-Party Advisory netapp.com
Affected: Kubernetes Kubernetes
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2019-11243?
CVE-2019-11243 has been scored as a high severity vulnerability.
How to fix CVE-2019-11243?
As a workaround for remediating CVE-2019-11243: Clear the config.WrapTransport and config.Transport fields in addition to calling rest.AnonymousClientConfig()
Is CVE-2019-11243 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11243 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-2019-11243?
CVE-2019-11243 affects Kubernetes Kubernetes.
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