CVE-2021-21684
Quick assessment
Affected
Jenkins project Jenkins Git Plugin
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 Git Plugin 4.8.2及更早版本存在跨站脚本漏洞，该漏洞源于在生成提交通知时，没有避开Git SHA-1校验和参数。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-21684
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.
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 跨站脚本漏洞
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 Git Plugin 4.8.2及更早版本存在跨站脚本漏洞，该漏洞源于在生成提交通知时，没有避开Git SHA-1校验和参数。
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 Git Plugin | unspecified ~ 4.8.2 | - |
|
II. Public POCs for CVE-2021-21684
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21684 (1)
-
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21684 (1)
Same Patch Batch · Jenkins project · 2021-10-06 · 3 CVEs total
| CVE-2021-21683 | Jenkins 路径遍历漏洞 | |
| CVE-2021-21682 | Jenkins 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21684
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