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CVE-2021-39943

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 Enterprise Edition是一套内容管理系统。 GitLab Enterprise Edition 存在授权问题漏洞，该漏洞源于外部状态检查API中的授权逻辑错误而存在的。远程认证的攻击者可以通过API调用更新检查状态。该漏洞允许远程攻击者绕过授权检查。

CVSS 4.3 · Medium EPSS 0.87% · P58

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-39943

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An authorization logic error in the External Status Check API in GitLab EE affecting all versions starting from 14.1 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allowed a user to update the status of the check via an API call
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition是一套内容管理系统。 GitLab Enterprise Edition 存在授权问题漏洞，该漏洞源于外部状态检查API中的授权逻辑错误而存在的。远程认证的攻击者可以通过API调用更新检查状态。该漏洞允许远程攻击者绕过授权检查。
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 >=14.5.0, <14.5.2 -

II. Public POCs for CVE-2021-39943

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-39943

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Other References for CVE-2021-39943 (3)

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab

V. Comments for CVE-2021-39943

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