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CVE-2022-31074— KubeEdge Cloud AdmissionController component DoS

Quick assessment

Affected
kubeedge kubeedge
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

KubeEdge是KubeEdge开源的一个 Kubernetes 原生边缘计算框架。基于 Kubernetes 构建，并将本机容器化应用编排和设备管理扩展到边缘主机。 KubeEdge 1.11.1之前版本、1.10.2之前版本 和 1.9.4之前版本存在资源管理错误漏洞，该漏洞源于如果向其发送包含非常大 Body 的 HTTP 请求，Cloud AdmissionController 中的多个端点可能会受到 DoS 攻击，攻击者利用该漏洞可以发送大消息来耗尽内存并导致 DoS。

CVSS 4.5 · Medium EPSS 0.78% · P53
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I. Basic Information for CVE-2022-31074

Vulnerability Information
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Vulnerability Title
KubeEdge Cloud AdmissionController component DoS
Source: CVE Program / CVE List V5
Vulnerability Description
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, several endpoints in the Cloud AdmissionController may be susceptible to a DoS attack if an HTTP request containing a very large Body is sent to it. The consequence of the exhaustion is that the Cloud AdmissionController will be in denial of service. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. There is currently no known workaround.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
KubeEdge 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
KubeEdge是KubeEdge开源的一个 Kubernetes 原生边缘计算框架。基于 Kubernetes 构建，并将本机容器化应用编排和设备管理扩展到边缘主机。 KubeEdge 1.11.1之前版本、1.10.2之前版本 和 1.9.4之前版本存在资源管理错误漏洞，该漏洞源于如果向其发送包含非常大 Body 的 HTTP 请求，Cloud AdmissionController 中的多个端点可能会受到 DoS 攻击，攻击者利用该漏洞可以发送大消息来耗尽内存并导致 DoS。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
kubeedge kubeedge < 1.9.4 -

II. Public POCs for CVE-2022-31074

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III. Intelligence Information for CVE-2022-31074

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Vendor Advisories for CVE-2022-31074 (1)

Same Patch Batch · kubeedge · 2022-07-11 · 6 CVEs total

CVE-2022-31073 6.5 MEDIUM KubeEdge Edge ServiceBus module DoS
CVE-2022-31075 4.9 MEDIUM KubeEdge DoS when signing the CSR from EdgeCore
CVE-2022-31078 4.4 MEDIUM KubeEdge CloudCore Router memory exhaustion
CVE-2022-31079 4.4 MEDIUM KubeEdge Cloud Stream and Edge Stream DoS from large stream message
CVE-2022-31080 4.4 MEDIUM KubeEdge Websocket Client in package Viaduct: DoS from large response message

IV. Related Vulnerabilities

Same product: kubeedge
Same vendor: kubeedge
Same weakness: CWE-400

V. Comments for CVE-2022-31074

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