CVE-2021-21691
Quick assessment
Affected
Jenkins project Jenkins
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 存在安全漏洞，该漏洞源于Jenkins 2.318 及更早版本、LTS 2.303.2 及更早版本的文件路径过滤实现中存在多个漏洞。攻击者可利用该漏洞允许代理进程在 Jenkins 控制器文件系统上读写任意文件，并获取有关 Jenkins 控制器文件系统的一些信息。
Possible ATT&CK Techniques 1 AI
T1564.004 · NTFS File Attributes
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-21691
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Creating symbolic links is possible without the 'symlink' agent-to-controller access control permission in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
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 安全漏洞
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 存在安全漏洞，该漏洞源于Jenkins 2.318 及更早版本、LTS 2.303.2 及更早版本的文件路径过滤实现中存在多个漏洞。攻击者可利用该漏洞允许代理进程在 Jenkins 控制器文件系统上读写任意文件，并获取有关 Jenkins 控制器文件系统的一些信息。
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 | unspecified ~ 2.318 | - |
|
II. Public POCs for CVE-2021-21691
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-21691
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-21691 (1)
-
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455 x_refsource_CONFIRM
Same Patch Batch · Jenkins project · 2021-11-04 · 14 CVEs total
| CVE-2021-21693 | Jenkins 授权问题漏洞 | |
| CVE-2021-21685 | Jenkins 访问控制错误漏洞 | |
| CVE-2021-21686 | Jenkins 后置链接漏洞 | |
| CVE-2021-21687 | Jenkins 安全漏洞 | |
| CVE-2021-21688 | Jenkins 安全漏洞 | |
| CVE-2021-21689 | Jenkins 安全漏洞 | |
| CVE-2021-21690 | Jenkins 安全漏洞 | |
| CVE-2021-21692 | Jenkins 安全漏洞 | |
| CVE-2021-21694 | Jenkins 安全漏洞 | |
| CVE-2021-21695 | Jenkins 后置链接漏洞 | |
| CVE-2021-21696 | Jenkins 安全漏洞 | |
| CVE-2021-21697 | Jenkins 安全漏洞 | |
| CVE-2021-21698 | Jenkins 路径遍历漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21691
No comments yet