CVE-2019-10175 : What You Need to Know
Discover how CVE-2019-10175 impacts Kubernetes clusters with unauthorized PVC cloning. Learn about the vulnerability, its severity, affected systems, and mitigation steps.
A vulnerability has been discovered in the containerized-data-importer affecting virt-cdi-cloner version 1.4, allowing unauthorized access to Persistent Volume Claims (PVCs) in Kubernetes clusters.
Understanding CVE-2019-10175
This CVE identifies a security flaw in the host-assisted cloning functionality of the containerized-data-importer, potentially leading to unauthorized data access.
What is CVE-2019-10175?
The vulnerability in virt-cdi-cloner 1.4 allows users to clone any PVC in the cluster into their namespace without proper authorization, compromising data security.
The Impact of CVE-2019-10175
- Confidentiality Impact: High, as unauthorized users can access sensitive data.
- Integrity Impact: None
- Availability Impact: None
- Base Score: 6.5 (Medium Severity)
Technical Details of CVE-2019-10175
The technical aspects of this CVE include:
Vulnerability Description
The flaw in virt-cdi-cloner 1.4 fails to verify user authorization, enabling unauthorized PVC cloning across namespaces.
Affected Systems and Versions
- Product: containerized-data-importer
- Vendor: KubeVirt
- Version: virt-cdi-cloner 1.4
Exploitation Mechanism
Unauthorized users exploit the host-assisted cloning feature to clone PVCs from other namespaces, gaining unauthorized access to data.
Mitigation and Prevention
To address CVE-2019-10175, follow these steps:
Immediate Steps to Take
- Upgrade to a patched version of virt-cdi-cloner.
- Implement strict access controls and namespace isolation.
Long-Term Security Practices
- Regularly audit and monitor PVC access and cloning activities.
- Educate users on proper data handling practices.
Patching and Updates
- Apply security patches promptly to prevent unauthorized data access.