Kubernetes kube-controller-manager SSRF
Vulnerability Description
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-8555
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Brice Augras from Groupe-Asten and Christophe Hauquiert from Nokia
References
- http://www.openwall.com/lists/oss-security/2020/06/01/4
- https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion
- https://github.com/kubernetes/kubernetes/issues/91542
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
- https://security.netapp.com/advisory/ntap-20200724-0005/
- http://www.openwall.com/lists/oss-security/2021/05/04/8
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