CVE-2021-21619
Quick assessment
Affected
Jenkins project Jenkins Claim 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 Claim 是 Jenkins开源的一个应用插件。提供用户从Jenkins声明失败的构建和测试，以表明他们有责任修复它们。 Jenkins Claim Plugin 2.18.1 and earlier 存在跨站脚本漏洞，该漏洞源于没有转义用户的显示名。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-21619
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.
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 Claim Plugin 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins Claim 是 Jenkins开源的一个应用插件。提供用户从Jenkins声明失败的构建和测试，以表明他们有责任修复它们。 Jenkins Claim Plugin 2.18.1 and earlier 存在跨站脚本漏洞，该漏洞源于没有转义用户的显示名。
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 Claim Plugin | unspecified ~ 2.18.1 | - |
|
II. Public POCs for CVE-2021-21619
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21619 (1)
-
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29 x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-21619 (1)
Same Patch Batch · Jenkins project · 2021-02-24 · 7 CVEs total
| CVE-2021-21616 | Jenkins Active Choices 跨站脚本漏洞 | |
| CVE-2021-21617 | Jenkins Configuration Slicing 跨站请求伪造漏洞 | |
| CVE-2021-21618 | Jenkins Repository Connector 跨站脚本漏洞 | |
| CVE-2021-21620 | Jenkins Claim 跨站请求伪造漏洞 | |
| CVE-2021-21621 | Jenkins Support Core 信息泄露漏洞 | |
| CVE-2021-21622 | Jenkins Artifact Repository Parameter 跨站脚本漏洞 |
IV. Related Vulnerabilities
Same product: Jenkins Claim Plugin
V. Comments for CVE-2021-21619
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