SB2019080655 - Permissions, Privileges, and Access Controls in k3s (Alpine package)

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Main Vulnerability Database SB2019080655

SB2019080655 - Permissions, Privileges, and Access Controls in k3s (Alpine package)

Published: August 6, 2019

Security Bulletin ID SB2019080655
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-11247)

The vulnerability allows a remote authenticated user to read and manipulate data.

The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced. Authorizations for the resource accessed in this manner are enforced using roles and role bindings within the namespace, meaning that a user with access only to a resource in one namespace could create, view update or delete the cluster-scoped resource (according to their namespace role privileges). Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.


Remediation

Install update from vendor's website.

References