CVE-2021-39909
Quick assessment
Affected
GitLab GitLab
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.
GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab EE 存在数据伪造问题漏洞，该漏洞允许攻击者在极少数情况下绕过CODEOWNERS 合并请求批准要求。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-39909
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab EE 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab EE 存在数据伪造问题漏洞，该漏洞允许攻击者在极少数情况下绕过CODEOWNERS 合并请求批准要求。
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
II. Public POCs for CVE-2021-39909
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-39909 (3)
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https://gitlab.com/gitlab-org/gitlab/-/issues/335191 x_refsource_MISC
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https://hackerone.com/reports/1237750 x_refsource_MISC
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https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json x_refsource_CONFIRM
Same Patch Batch · GitLab · 2021-11-04 · 16 CVEs total
| CVE-2021-39906 | 8.7 HIGH | GitLab 跨站脚本漏洞 |
| CVE-2021-22260 | 7.7 HIGH | GitLab 跨站脚本漏洞 |
| CVE-2021-39903 | 6.5 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39895 | 6.0 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2021-39912 | 5.3 MEDIUM | GitLab 资源管理错误漏洞 |
| CVE-2021-39907 | 5.3 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2021-39913 | 4.4 MEDIUM | GitLab 日志信息泄露漏洞 |
| CVE-2021-39902 | 4.3 MEDIUM | GitLab 授权问题漏洞 |
| CVE-2021-39904 | 4.3 MEDIUM | GitLab CE/EE 访问控制错误漏洞 |
| CVE-2021-39905 | 4.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39898 | 3.7 LOW | GitLab 信息泄露漏洞 |
| CVE-2021-39914 | 3.1 LOW | Alfresco Software Alfresco Community Edition 资源管理错误漏洞 |
| CVE-2021-39901 | 2.7 LOW | GitLab 信息泄露漏洞 |
| CVE-2021-39897 | 2.6 LOW | GitLab 访问控制错误漏洞 |
| CVE-2021-39911 | 1.7 LOW | GitLab Enterprise Edition和GitLab Community Edition 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-39909
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