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CVE-2021-22240

Quick assessment

Affected
GitLab GitLab EE
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公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。 GitLab EE 存在安全漏洞，该漏洞源于应用不正确的访问控制允许通过单点登录创建用户，尽管启用了用户上限。以下产品及版本受到影响：GitLab EE 13.11.6, 13.12.6, and 14.0.2。

CVSS 4.2 · Medium EPSS 0.66% · P50

Possible ATT&CK Techniques 1 AI

T1136.003 · Cloud Account
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I. Basic Information for CVE-2021-22240

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper access control in GitLab EE versions 13.11.6, 13.12.6, and 14.0.2 allows users to be created via single sign on despite user cap being enabled
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。 GitLab EE 存在安全漏洞，该漏洞源于应用不正确的访问控制允许通过单点登录创建用户，尽管启用了用户上限。以下产品及版本受到影响：GitLab EE 13.11.6, 13.12.6, and 14.0.2。
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 EE >=13.7, <13.11.6 -

II. Public POCs for CVE-2021-22240

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III. Intelligence Information for CVE-2021-22240

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Other References for CVE-2021-22240 (3)

Same Patch Batch · GitLab · 2021-08-05 · 3 CVEs total

CVE-2021-22234 9.6 CRITICAL GitLab CE/EE 跨站脚本漏洞
CVE-2021-22241 8.7 HIGH GitLab 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: GitLab EE
Same vendor: GitLab

V. Comments for CVE-2021-22240

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