CVE-2025-64433— Kubevirt 路径遍历漏洞
一分钟漏洞结论
影响对象
kubevirt kubevirt
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Kubevirt是KubeVirt开源的一款虚拟机管理器。 KubeVirt 1.5.3之前版本和1.6.1之前版本存在路径遍历漏洞，该漏洞源于符号链接处理不当和文件所有权更改问题，可能导致读取virt-launcher pod文件系统中的任意文件。
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一、 漏洞 CVE-2025-64433 基础信息
漏洞信息
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Vulnerability Title
KubeVirt Arbitrary Container File Read
来源: CVE Program / CVE List V5
Vulnerability Description
KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, a vulnerability was discovered that allows a VM to read arbitrary files from the virt-launcher pod's file system. This issue stems from improper symlink handling when mounting PVC disks into a VM. Specifically, if a malicious user has full or partial control over the contents of a PVC, they can create a symbolic link that points to a file within the virt-launcher pod's file system. Since libvirt can treat regular files as block devices, any file on the pod's file system that is symlinked in this way can be mounted into the VM and subsequently read. Although a security mechanism exists where VMs are executed as an unprivileged user with UID 107 inside the virt-launcher container, limiting the scope of accessible resources, this restriction is bypassed due to a second vulnerability. The latter causes the ownership of any file intended for mounting to be changed to the unprivileged user with UID 107 prior to mounting. As a result, an attacker can gain access to and read arbitrary files located within the virt-launcher pod's file system or on a mounted PVC from within the guest VM. This vulnerability is fixed in 1.5.3 and 1.6.1.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
Vulnerability Title
Kubevirt 路径遍历漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Kubevirt是KubeVirt开源的一款虚拟机管理器。 KubeVirt 1.5.3之前版本和1.6.1之前版本存在路径遍历漏洞，该漏洞源于符号链接处理不当和文件所有权更改问题，可能导致读取virt-launcher pod文件系统中的任意文件。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2025-64433 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2025-64433 补丁与修复 (1)
CVE-2025-64433 厂商安全公告 (1)
同批安全公告 · kubevirt · 2025-11-07 · 共 6 条
| CVE-2025-64435 | 5.3 MEDIUM | Kubevirt 安全漏洞 |
| CVE-2025-64437 | 5.0 MEDIUM | Kubevirt 后置链接漏洞 |
| CVE-2025-64432 | 4.7 MEDIUM | Kubevirt 信任管理问题漏洞 |
| CVE-2025-64434 | 4.7 MEDIUM | Kubevirt 授权问题漏洞 |
| CVE-2025-64436 | Kubevirt 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2025-64433
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