SB2019120529 - Open redirect in Kubernetes



SB2019120529 - Open redirect in Kubernetes

Published: December 5, 2019 Updated: August 8, 2020

Security Bulletin ID SB2019120529
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) Open redirect (CVE-ID: CVE-2018-1002102)

The vulnerability allows a remote privileged user to gain access to sensitive information.

Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.


Remediation

Install update from vendor's website.