CVE-2021-39942
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 存在资源管理错误漏洞，该漏洞源于权限控制存在缺陷，攻击者可以利用该漏洞绕过权限访问控制导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-39942
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability in GitLab CE/EE affecting all versions starting from 12.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows low-privileged users to bypass file size limits in the NPM package repository to potentially cause denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 资源管理错误漏洞
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 存在资源管理错误漏洞，该漏洞源于权限控制存在缺陷，攻击者可以利用该漏洞绕过权限访问控制导致拒绝服务。
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-2021-39942
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-39942 (3)
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https://gitlab.com/gitlab-org/gitlab/-/issues/297492 x_refsource_MISC
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https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39942.json x_refsource_CONFIRM
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https://hackerone.com/reports/1071861 x_refsource_MISC
Same Patch Batch · GitLab · 2022-01-18 · 13 CVEs total
| CVE-2021-39946 | 8.7 HIGH | GitLab 跨站脚本漏洞 |
| CVE-2022-0244 | 8.6 HIGH | GitLab 安全漏洞 |
| CVE-2022-0154 | 7.5 HIGH | GitLab 跨站请求伪造漏洞 |
| CVE-2022-0152 | 6.5 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2022-0151 | 6.5 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2022-0090 | 6.5 MEDIUM | GitLab 安全漏洞 |
| CVE-2022-0172 | 5.3 MEDIUM | GitLab 安全漏洞 |
| CVE-2022-0124 | 4.3 MEDIUM | GitLab 输入验证错误漏洞 |
| CVE-2022-0125 | 4.3 MEDIUM | GitLab 信息泄露漏洞 |
| CVE-2021-39892 | 4.3 MEDIUM | GitLab 安全漏洞 |
| CVE-2021-39927 | 3.5 LOW | GitLab 代码问题漏洞 |
| CVE-2022-0093 | 3.5 LOW | GitLab 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-39942
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