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CVE-2023-5198— Incorrect Authorization in GitLab

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存在安全漏洞，该漏洞源于已删除的项目成员可以使用部署密钥写入受保护的分支。以下版本受到影响：16.2.7之前版本、16.3版本至16.3.5之前版本、16.4版本至16.4.1之前版本。

CVSS 4.3 · Medium EPSS 0.51% · P41

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab ≤ 16.2.7 affected
16.3< 16.3.5 affected
16.4< 16.4.1 affected
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I. Basic Information for CVE-2023-5198

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 安全漏洞
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存在安全漏洞，该漏洞源于已删除的项目成员可以使用部署密钥写入受保护的分支。以下版本受到影响：16.2.7之前版本、16.3版本至16.3.5之前版本、16.4版本至16.4.1之前版本。
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 ~ 16.2.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2023-5198

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III. Intelligence Information for CVE-2023-5198

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Other References for CVE-2023-5198 (2)

Same Patch Batch · GitLab · 2023-09-29 · 12 CVEs total

CVE-2023-3413 6.5 MEDIUM Insertion of Sensitive Information Into Sent Data in GitLab
CVE-2023-3115 5.4 MEDIUM Incorrect User Management in GitLab
CVE-2023-3914 5.4 MEDIUM Incorrect User Management in GitLab
CVE-2023-0989 4.3 MEDIUM Improper Ownership Management in GitLab
CVE-2023-3920 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2023-3917 4.3 MEDIUM Improper Validation of Specified Type of Input in GitLab
CVE-2023-4532 4.3 MEDIUM Incorrect Authorization in GitLab
CVE-2023-3906 3.5 LOW Improper Validation of Specified Type of Input in GitLab
CVE-2023-2233 3.1 LOW Missing Authorization in GitLab
CVE-2023-3979 3.1 LOW Incorrect Authorization in GitLab
CVE-2023-3922 3.0 LOW URL Redirection to Untrusted Site ('Open Redirect') in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-863

V. Comments for CVE-2023-5198

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