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CVE-2021-39143— Path Traversal in spinnaker

Quick assessment

Affected
spinnaker spinnaker
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.

Spinnaker是一个持续交付平台。用于以高速度和信心发布软件变更。 Spinnaker 存在路径遍历漏洞，该漏洞允许攻击者覆盖容器上的文件，通过替换库或注入包装文件引入 MITM 类型的攻击向量。

CVSS 6.6 · Medium EPSS 0.34% · P27
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I. Basic Information for CVE-2021-39143

Vulnerability Information
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Vulnerability Title
Path Traversal in spinnaker
Source: CVE Program / CVE List V5
Vulnerability Description
Spinnaker is an open source, multi-cloud continuous delivery platform. A path traversal vulnerability was discovered in uses of TAR files by AppEngine for deployments. This uses a utility to extract files locally for deployment without validating the paths in that deployment don't override system files. This would allow an attacker to override files on the container, POTENTIALLY introducing a MITM type attack vector by replacing libraries or injecting wrapper files. Users are advised to update as soon as possible. For users unable to update disable Google AppEngine deployments and/or disable artifacts that provide TARs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Spinnaker 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spinnaker是一个持续交付平台。用于以高速度和信心发布软件变更。 Spinnaker 存在路径遍历漏洞，该漏洞允许攻击者覆盖容器上的文件，通过替换库或注入包装文件引入 MITM 类型的攻击向量。
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
spinnaker spinnaker >= 1.26.0, < 1.26.7 -

II. Public POCs for CVE-2021-39143

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III. Intelligence Information for CVE-2021-39143

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Vendor Advisories for CVE-2021-39143 (1)

IV. Related Vulnerabilities

Same product: spinnaker
Same vendor: spinnaker
Same weakness: CWE-22

V. Comments for CVE-2021-39143

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