CVE-2021-21621
Quick assessment
Affected
Jenkins project Jenkins Support Core 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 Support Core是 Jenkins开源的一个应用插件。提供了在Jenkins中生成支持信息“捆绑”的基本基础结构。 Jenkins Support Core Plugin 2.72 and earlier 存在信息泄露漏洞，该漏洞源于提供了序列化用户身份验证作为身份验证信息的一部分，该信息可以包括在某些配置中创建支持包的用户的会话ID。
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I. Basic Information for CVE-2021-21621
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins Support Core Plugin 2.72 and earlier provides the serialized user authentication as part of the "About user (basic authentication details only)" information, which can include the session ID of the user creating the support bundle in some configurations.
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 Support Core 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins Support Core是 Jenkins开源的一个应用插件。提供了在Jenkins中生成支持信息“捆绑”的基本基础结构。 Jenkins Support Core Plugin 2.72 and earlier 存在信息泄露漏洞，该漏洞源于提供了序列化用户身份验证作为身份验证信息的一部分，该信息可以包括在某些配置中创建支持包的用户的会话ID。
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 Support Core Plugin | unspecified ~ 2.72 | - |
|
II. Public POCs for CVE-2021-21621
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-21621 (1)
-
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2150 x_refsource_CONFIRM
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-2021-21619 | Jenkins Claim Plugin 跨站脚本漏洞 | |
| CVE-2021-21620 | Jenkins Claim 跨站请求伪造漏洞 | |
| CVE-2021-21622 | Jenkins Artifact Repository Parameter 跨站脚本漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21621
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