The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
CVE-2020-8559 - Medium Severity Vulnerability
Vulnerable Library - github.com/containerd/containerd/errdefs-v1.3.2
An open and reliable container runtime
Dependency Hierarchy: - github.com/docker/docker/api/types-v1.4.2-0.20191223123943-bbcabf69c81b (Root Library) - github.com/docker/docker/api/types/swarm-v1.4.2-0.20191223123943-bbcabf69c81b - github.com/docker/docker/api/types/network-v1.4.2-0.20191223123943-bbcabf69c81b - github.com/docker/docker/errdefs-v1.4.2-0.20191223123943-bbcabf69c81b - :x: **github.com/containerd/containerd/errdefs-v1.3.2** (Vulnerable Library)
Found in HEAD commit: 24d20cdadb424c61c6067a478b696b08056a9b3c
Vulnerability Details
The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.
Publish Date: 2020-07-22
URL: CVE-2020-8559
CVSS 3 Score Details (6.8)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: High - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/kubernetes/kubernetes/issues/92914
Release Date: 2020-07-21
Fix Resolution: v1.18.6,v1.17.9,v1.16.13
Step up your Open Source Security Game with WhiteSource here