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CVE-2021-21615

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.

Cloudbees Jenkins（Hudson Labs）是美国Cloudbees公司的一套基于Java开发的持续集成工具。该产品主要用于监控持续的软件版本发布/测试项目和一些定时执行的任务。 Jenkins 2.275和LTS 2.263.2存在安全漏洞，该漏洞源于程序允许使用文件浏览器读取工作区和归档工件的任意文件，这是由于有一个检查时间和使用时间(tocou)竞争条件。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.90% · P56

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2021-21615

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition.
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
Cloudbees Jenkins 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloudbees Jenkins（Hudson Labs）是美国Cloudbees公司的一套基于Java开发的持续集成工具。该产品主要用于监控持续的软件版本发布/测试项目和一些定时执行的任务。 Jenkins 2.275和LTS 2.263.2存在安全漏洞，该漏洞源于程序允许使用文件浏览器读取工作区和归档工件的任意文件，这是由于有一个检查时间和使用时间(tocou)竞争条件。
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 2.275 -

II. Public POCs for CVE-2021-21615

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III. Intelligence Information for CVE-2021-21615

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Vendor Advisories for CVE-2021-21615 (1)

Mailing List Discussions for CVE-2021-21615 (1)

IV. Related Vulnerabilities

Same product: Jenkins
Same vendor: Jenkins project

V. Comments for CVE-2021-21615

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