SB2024091830 - Externally controlled reference to a resource in another sphere in Kubernetes



SB2024091830 - Externally controlled reference to a resource in another sphere in Kubernetes

Published: September 18, 2024

Security Bulletin ID SB2024091830
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Externally Controlled Reference to a Resource in Another Sphere (CVE-ID: CVE-2020-8561)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests is able to redirect kube-apiserver requests to private networks of the apiserver.


Remediation

Install update from vendor's website.