Kubevirt: >> Kubevirt >> 0.29.0 Security Vulnerabilities
An issue in kubevirt kubevirt v1.2.0 and before allows a local attacker to execute arbitrary code via a crafted command to get the token component.
CVSS Score
5.9
EPSS Score
0.0
Published
2024-05-02
KubeVirt is a virtual machine management add-on for Kubernetes. In versions 0.59.0 and prior, if a malicious user has taken over a Kubernetes node where virt-handler (the KubeVirt node-daemon) is running, the virt-handler service account can be used to modify all node specs. This can be misused to lure-in system-level-privileged components which can, for instance, read all secrets on the cluster, or can exec into pods on other nodes. This way, a compromised node can be used to elevate privileges beyond the node until potentially having full privileged access to the whole cluster. The simplest way to exploit this, once a user could compromise a specific node, is to set with the virt-handler service account all other nodes to unschedulable and simply wait until system-critical components with high privileges appear on its node. No patches are available as of time of publication. As a workaround, gatekeeper users can add a webhook which will block the `virt-handler` service account to modify the spec of a node.
CVSS Score
8.2
EPSS Score
0.003
Published
2023-03-15
A path traversal vulnerability in KubeVirt versions up to 0.56 (and 0.55.1) on all platforms allows a user able to configure the kubevirt to read arbitrary files on the host filesystem which are publicly readable or which are readable for UID 107 or GID 107. /proc/self/<> is not accessible.
CVSS Score
8.7
EPSS Score
0.0
Published
2022-09-15