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).
Fixes

Solution

No solution given by the vendor.


Workaround

Prior to upgrading, this vulnerability can be mitigated by adding endpoint protections on the master or restricting usage of the vulnerable volume types (for example by constraining usage with a PodSecurityPolicy or third-party admission controller such as Gatekeeper) and restricting StorageClass write permissions through RBAC.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: kubernetes

Published:

Updated: 2024-09-16T18:39:58.006Z

Reserved: 2020-02-03T00:00:00

Link: CVE-2020-8555

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-06-05T17:15:11.640

Modified: 2024-11-21T05:39:01.533

Link: CVE-2020-8555

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-06-01T00:00:00Z

Links: CVE-2020-8555 - Bugzilla

cve-icon OpenCVE Enrichment

No data.