CVE-2020-8569
4.3 · MEDIUMOverview
CVE-2020-8569 is a medium-severity vulnerability affecting kubernetes container_storage_interface_snapshotter. It was published on January 21, 2021 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.
Remediation
Check the references section for vendor advisories and patches from kubernetes. Update container_storage_interface_snapshotter to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| kubernetes | container_storage_interface_snapshotter | >= 2.1.0, < 2.1.3 | Affected |
Frequently Asked Questions
What is CVE-2020-8569?
CVE-2020-8569 is a medium-severity vulnerability affecting kubernetes container_storage_interface_snapshotter. It was published on January 21, 2021 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2020-8569?
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-8569?
Check the references section for vendor advisories and patches from kubernetes. Update container_storage_interface_snapshotter to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-8569?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-8569 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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