CVE-2021-21685
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 存在访问控制错误漏洞，该漏洞源于 FilePath#mkdirs 创建父目录操作不受任何 agent-to-controller 访问控制的约束。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21685
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create parent directories in FilePath#mkdirs.
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 访问控制错误漏洞
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 存在访问控制错误漏洞，该漏洞源于 FilePath#mkdirs 创建父目录操作不受任何 agent-to-controller 访问控制的约束。
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 ~ 2.318 | - |
|
II. Public POCs for CVE-2021-21685
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21685 (1)
-
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21685 (1)
Same Patch Batch · Jenkins project · 2021-11-04 · 14 CVEs total
| CVE-2021-21693 | Jenkins 授权问题漏洞 | |
| CVE-2021-21686 | Jenkins 后置链接漏洞 | |
| CVE-2021-21687 | Jenkins 安全漏洞 | |
| CVE-2021-21688 | Jenkins 安全漏洞 | |
| CVE-2021-21689 | Jenkins 安全漏洞 | |
| CVE-2021-21690 | Jenkins 安全漏洞 | |
| CVE-2021-21691 | Jenkins 安全漏洞 | |
| CVE-2021-21692 | Jenkins 安全漏洞 | |
| CVE-2021-21694 | Jenkins 安全漏洞 | |
| CVE-2021-21695 | Jenkins 后置链接漏洞 | |
| CVE-2021-21696 | Jenkins 安全漏洞 | |
| CVE-2021-21697 | Jenkins 安全漏洞 | |
| CVE-2021-21698 | Jenkins 路径遍历漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21685
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