5

CVE-2025-64437

Exploit

KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes

KubeVirt is a virtual machine management add-on for Kubernetes. In versions before 1.5.3 and 1.6.1, the virt-handler does not verify whether the launcher-sock is a symlink or a regular file. This oversight can be exploited, for example, to change the ownership of arbitrary files on the host node to the unprivileged user with UID 107 (the same user used by virt-launcher) thus, compromising the CIA (Confidentiality, Integrity and Availability) of data on the host. To successfully exploit this vulnerability, an attacker should be in control of the file system of the virt-launcher pod. This vulnerability is fixed in 1.5.3 and 1.6.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Kubevirt ≫ Kubevirt SwPlatformkubernetes Version < 1.5.3
Kubevirt ≫ Kubevirt Version1.6.0 SwPlatformkubernetes
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.113
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5 0.8 3.7
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

https://github.com/kubevirt/kubevirt/security/advisories/GHSA-2r4r-5x78-mvqf
Vendor Advisory
Exploit
https://github.com/kubevirt/kubevirt/commit/3ce9f41c54d04a65f10b23a46771391c00659afb
Patch
https://github.com/kubevirt/kubevirt/commit/8644dbe0d04784b0bfa8395b91ecbd6001f88f6b
Patch
https://github.com/kubevirt/kubevirt/commit/f59ca63133f25de8fceb3e2a0e5cc0b7bdb6a265
Patch