CVE-2023-30840
5.8 · MEDIUMOverview
CVE-2023-30840 is a medium-severity vulnerability affecting linuxfoundation fluid. It was published on May 8, 2023 and has a CVSS 3.1 base score of 5.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Fluid is an open source Kubernetes-native distributed dataset orchestrator and accelerator for data-intensive applications. Starting in version 0.7.0 and prior to version 0.8.6, if a malicious user gains control of a Kubernetes node running fluid csi pod (controlled by the `csi-nodeplugin-fluid` node-daemonset), they can leverage the fluid-csi service account to modify specs of all the nodes in the cluster. However, since this service account lacks `list node` permissions, the attacker may need to use other techniques to identify vulnerable nodes.
Once the attacker identifies and modifies the node specs, they can manipulate system-level-privileged components to access all secrets in the cluster or execute pods on other nodes. This allows them to elevate privileges beyond the compromised node and potentially gain full privileged access to the whole cluster.
To exploit this vulnerability, the attacker can make all other nodes unschedulable (for example, patch node with taints) and wait
Remediation
Check the references section for vendor advisories and patches from linuxfoundation. Update fluid 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 |
|---|---|---|---|
| linuxfoundation | fluid | >= 0.7.0, < 0.8.6 | Affected |
References
Frequently Asked Questions
What is CVE-2023-30840?
CVE-2023-30840 is a medium-severity vulnerability affecting linuxfoundation fluid. It was published on May 8, 2023 and has a CVSS 3.1 base score of 5.8 (MEDIUM).
How severe is CVE-2023-30840?
This vulnerability has a CVSS 3.1 base score of 5.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-30840?
Check the references section for vendor advisories and patches from linuxfoundation. Update fluid 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-2023-30840?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-30840 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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