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CVE-2021-39908

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存在代码注入漏洞，该漏洞源于某些 Unicode 字符可能被滥用以将恶意代码提交到项目中，而不会在合并请求或源代码查看器 UI 中被发现。

CVSS 6.5 · Medium EPSS 1.27% · P69

Possible ATT&CK Techniques 2 AI

T1189 · Drive-by Compromise T1562.001
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I. Basic Information for CVE-2021-39908

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In all versions of GitLab CE/EE starting from 0.8.0 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 certain Unicode characters can be abused to commit malicious code into projects without being noticed in merge request or source code viewer UI.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/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 代码注入漏洞
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存在代码注入漏洞，该漏洞源于某些 Unicode 字符可能被滥用以将恶意代码提交到项目中，而不会在合并请求或源代码查看器 UI 中被发现。
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
GitLab GitLab >=0.8.0, <14.2.6 -

II. Public POCs for CVE-2021-39908

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III. Intelligence Information for CVE-2021-39908

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Other References for CVE-2021-39908 (2)

Same Patch Batch · GitLab · 2022-04-01 · 6 CVEs total

CVE-2022-0741 5.8 MEDIUM GitLab Enterprise Edition 输入验证错误漏洞
CVE-2022-0425 5.4 MEDIUM GitLab Enterprise Edition 代码问题漏洞
CVE-2022-0390 4.3 MEDIUM GitLab Enterprise Edition 访问控制错误漏洞
CVE-2022-0373 4.3 MEDIUM GitLab Enterprise Edition 安全漏洞
CVE-2022-0489 3.5 LOW GitLab Enterprise Edition和GitLab Community Edition 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab

V. Comments for CVE-2021-39908

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