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CVE-2020-8564— Docker config secrets leaked when file is malformed and loglevel >= 4

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.

Kubernetes是美国Linux基金会的一套开源的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。 Kubernetes存在日志信息泄露漏洞，攻击者可利用该漏洞绕过对数据的访问限制，以获取敏感信息。

CVSS 4.7 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2020-8564

Vulnerability Information
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Vulnerability Title
Docker config secrets leaked when file is malformed and loglevel >= 4
Source: CVE Program / CVE List V5
Vulnerability Description
In Kubernetes clusters using a logging level of at least 4, processing a malformed docker config file will result in the contents of the docker config file being leaked, which can include pull secrets or other registry credentials. This affects < v1.19.3, < v1.18.10, < v1.17.13.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Kubernetes 日志日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes是美国Linux基金会的一套开源的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。 Kubernetes存在日志信息泄露漏洞，攻击者可利用该漏洞绕过对数据的访问限制，以获取敏感信息。
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 < 1.19.3 -

II. Public POCs for CVE-2020-8564

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III. Intelligence Information for CVE-2020-8564

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Vendor Advisories for CVE-2020-8564 (1)

Other References for CVE-2020-8564 (2)

Same Patch Batch · Kubernetes · 2020-12-07 · 4 CVEs total

CVE-2020-8566 4.7 MEDIUM Ceph RBD adminSecrets exposed in logs when loglevel >= 4
CVE-2020-8565 4.7 MEDIUM Incomplete fix for CVE-2019-11250 allows for token leak in logs when logLevel >= 9
CVE-2020-8563 4.7 MEDIUM Secret leaks in logs for vSphere Provider kube-controller-manager

IV. Related Vulnerabilities

Same product: Kubernetes
Same vendor: Kubernetes
Same weakness: CWE-532

V. Comments for CVE-2020-8564

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