CVE-2020-8552— Kubernetes API server denial of service
Quick assessment
Affected
Kubernetes Kubernetes
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.
Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。API server是其中的一个API（应用编程接口）服务器。 Google Kubernetes API server中存在资源管理错误漏洞。攻击者可借助API请求利用该漏洞造成拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-8552
Vulnerability Information
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Vulnerability Title
Kubernetes API server denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
The Kubernetes API server component in versions prior to 1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via successful API requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5
Vulnerability Title
Google Kubernetes API server 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。API server是其中的一个API（应用编程接口）服务器。 Google Kubernetes API server中存在资源管理错误漏洞。攻击者可借助API请求利用该漏洞造成拒绝服务。
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 |
|---|---|---|---|---|
| Kubernetes | Kubernetes | unspecified ~ v1.17.3 | - |
|
II. Public POCs for CVE-2020-8552
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-8552 (1)
-
https://security.netapp.com/advisory/ntap-20200413-0003/ x_refsource_CONFIRM
Mailing List Discussions for CVE-2020-8552 (1)
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/ vendor-advisory x_refsource_FEDORA
Other References for CVE-2020-8552 (2)
-
https://github.com/kubernetes/kubernetes/issues/89378 x_refsource_MISC
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V. Comments for CVE-2020-8552
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