CVE-2020-8563

Secret leaks in logs for vSphere Provider kube-controller-manager

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Kubernetes clusters using VSphere as a cloud provider, with a logging level set to 4 or above, VSphere cloud credentials will be leaked in the cloud controller manager's log. This affects < v1.19.3.

En los clústeres de Kubernetes que utilizan VSphere como proveedor de nube, con un nivel de registro establecido en 4 o superior, las credenciales de la nube de VSphere se filtrarán en el registro del administrador del controlador de nube. Esto afecta a versiones anteriores a v1.19.3

A flaw was found in kubernetes. Clusters running on VSphere, using VSphere as a cloud provider a with logging level set to 4 or above, VSphere cloud credentials will be leaked in the cloud controller manager's log.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.7.0. Issues addressed include bypass, denial of service, integer overflow, man-in-the-middle, and memory leak vulnerabilities.

*Credits: Kaizhe Huang (derek0405)

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-03 CVE Reserved
2020-12-07 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-117: Improper Output Neutralization for Logs
CWE-532: Insertion of Sensitive Information into Log File

CAPEC

References (5)

URL	Tag	Source
https://github.com/kubernetes/kubernetes/issues/95621	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210122-0006	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ	2021-03-29

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2020-8563	2021-02-24
https://bugzilla.redhat.com/show_bug.cgi?id=1886635	2021-02-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				< 1.19.3 Search vendor "Kubernetes" for product "Kubernetes" and version " < 1.19.3"		-		Affected