CVE-2019-3841 Explained : Impact and Mitigation

Versions 1.4.0 to 1.5.3 of Kubevirt/virt-cdi-importer have a vulnerability that disables TLS certificate validation during data import, potentially leading to man-in-the-middle attacks.

Understanding CVE-2019-3841

This CVE involves a security flaw in Kubevirt/virt-cdi-importer versions 1.4.0 to 1.5.3 that affects TLS certificate validation during the data import process.

What is CVE-2019-3841?

CVE-2019-3841 is a vulnerability in Kubevirt/virt-cdi-importer versions 1.4.0 to 1.5.3 that allows for the disabling of TLS certificate validation during data import from container registries to PVCs.

The Impact of CVE-2019-3841

The vulnerability poses a risk of man-in-the-middle attacks between the container registry and the virt-cdi-component, potentially enabling undetectable tampering of trusted container image content.

Technical Details of CVE-2019-3841

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in versions 1.4.0 to 1.5.3 of Kubevirt/virt-cdi-importer disables TLS certificate validation during the data import process.

Affected Systems and Versions

Product: kubevirt/virt-cdi-importer
Vendor: The Kubevirt project
Versions affected: 1.4.0 to 1.5.3 inclusive

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Privileges Required: None
User Interaction: None

Mitigation and Prevention

Protecting systems from CVE-2019-3841 is crucial to maintaining security.

Immediate Steps to Take

Update the affected software to a secure version.
Implement network security measures to detect and prevent man-in-the-middle attacks.

Long-Term Security Practices

Regularly monitor and audit network traffic for suspicious activities.
Educate users on the risks of unvalidated TLS certificates and the importance of secure data imports.

Patching and Updates

Apply patches provided by The Kubevirt project to address the vulnerability.