CVE-2021-21639
Quick assessment
Affected
Jenkins project Jenkins
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.
Jenkins是Jenkins开源的一个应用软件。一个开源自动化服务器Jenkins提供了数百个插件来支持构建，部署和自动化任何项目。 Jenkins 2.286版本及之前版本, LTS 2.277.1版本及之前版本存在安全漏洞，该漏洞允许具有计算机配置权限的攻击者可用不同类型的节点替换一个节点。
Possible ATT&CK Techniques 1 AI
T1195.002 · Compromise Software Supply Chain
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I. Basic Information for CVE-2021-21639
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Jenkins 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins是Jenkins开源的一个应用软件。一个开源自动化服务器Jenkins提供了数百个插件来支持构建，部署和自动化任何项目。 Jenkins 2.286版本及之前版本, LTS 2.277.1版本及之前版本存在安全漏洞，该漏洞允许具有计算机配置权限的攻击者可用不同类型的节点替换一个节点。
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 |
|---|---|---|---|---|
| Jenkins project | Jenkins | unspecified ~ 2.286 | - |
|
II. Public POCs for CVE-2021-21639
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-21639 (1)
-
https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21639 (1)
Same Patch Batch · Jenkins project · 2021-04-07 · 3 CVEs total
| CVE-2021-21641 | Jenkins 跨站请求伪造漏洞 | |
| CVE-2021-21640 | Jenkins 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21639
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