CVE-2021-21699
Quick assessment
Affected
Jenkins project Jenkins Active Choices Plugin
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Jenkins Active Choices 是 Jenkins开源的一个应用插件。用于参数化的自由式Jenkins作业中，以创建脚本化，动态和交互式作业参数。 Jenkins Plugin 存在跨站脚本漏洞，该漏洞源于 Active Choices 插件 2.5.6 版本及更早版本不会转义反应参数和动态参考参数的参数名称。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-21699
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
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 Active Choices 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins Active Choices 是 Jenkins开源的一个应用插件。用于参数化的自由式Jenkins作业中，以创建脚本化，动态和交互式作业参数。 Jenkins Plugin 存在跨站脚本漏洞，该漏洞源于 Active Choices 插件 2.5.6 版本及更早版本不会转义反应参数和动态参考参数的参数名称。
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 Active Choices Plugin | unspecified ~ 2.5.6 | - |
|
II. Public POCs for CVE-2021-21699
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21699 (1)
-
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2219 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21699 (1)
Same Patch Batch · Jenkins project · 2021-11-12 · 6 CVEs total
| CVE-2021-43578 | Jenkins 安全漏洞 | |
| CVE-2021-43577 | Jenkins 代码问题漏洞 | |
| CVE-2021-43576 | Jenkins 代码问题漏洞 | |
| CVE-2021-21701 | Jenkins 代码问题漏洞 | |
| CVE-2021-21700 | Jenkins 跨站脚本漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21699
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