PT-2023-8928 · Fluid · Fluid
Nanzi Yang
·
Publicado
2023-05-08
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Atualizado
2024-08-20
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CVE-2023-30840
CVSS v2.0
6.8
Média
| Vetor | AV:L/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Fluid versions 0.7.0 through 0.8.5
Description
The issue is related to improper authorization in Fluid, an open-source Kubernetes-native distributed dataset orchestrator and accelerator for data-intensive applications. If a malicious user gains control of a Kubernetes node running the fluid csi pod, they can leverage the fluid-csi service account to modify specs of all 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, potentially gaining full privileged access to the whole cluster. To exploit this vulnerability, the attacker can make all other nodes unschedulable and wait for system-critical components with high privilege to appear on the compromised node.Recommendations
For versions 0.7.0 through 0.8.5, upgrade to version 0.8.6.
As a temporary workaround, delete the
csi-nodeplugin-fluid daemonset in the fluid-system namespace and avoid using CSI mode to mount FUSE file systems.
Alternatively, use sidecar mode to mount FUSE file systems.Exploit
Correção
Incorrect Authorization
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Fluid