CVE-2021-21646
Quick assessment
Affected
Jenkins project Jenkins Templating Engine 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和Jenkins Plugin都是Jenkins开源的产品。Jenkins是一个应用软件。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 Plugin是一个应用软件。 Jenkins Templating Engine Plugin 2.1 版本之前存在安全漏洞，该漏洞源于没有使用脚本安全插件来保护其管道配置，这使得具有作业配置权限的攻击者可利用该漏洞可以在Jenkins控制器JVM的上下文中执行任意代码。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21646
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.
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 Templating Engine Plugin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins和Jenkins Plugin都是Jenkins开源的产品。Jenkins是一个应用软件。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 Plugin是一个应用软件。 Jenkins Templating Engine Plugin 2.1 版本之前存在安全漏洞，该漏洞源于没有使用脚本安全插件来保护其管道配置，这使得具有作业配置权限的攻击者可利用该漏洞可以在Jenkins控制器JVM的上下文中执行任意代码。
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 Templating Engine Plugin | unspecified ~ 2.1 | - |
|
II. Public POCs for CVE-2021-21646
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21646 (1)
-
https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21646 (1)
Same Patch Batch · Jenkins project · 2021-04-21 · 6 CVEs total
| CVE-2021-21642 | Jenkins Config File Provider Plugin 代码问题漏洞 | |
| CVE-2021-21643 | Red Hat OpenShift Container Platform 安全漏洞 | |
| CVE-2021-21644 | Jenkins Config File Provider Plugin 跨站请求伪造漏洞 | |
| CVE-2021-21645 | Jenkins Config File Provider Plugin 安全漏洞 | |
| CVE-2021-21647 | Jenkins 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21646
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