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CVE-2023-6803— Race Condition allows Unauthorized Outside Collaborator

Quick assessment

Affected
GitHub Enterprise Server
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.

GitHub Enterprise Server是美国GitHub开源的一个应用软件。提供一个将自己的GitHub实例设置为虚拟设备，从而提供可扩展，易于管理的平台。 GitHub Enterprise Server 3.8.12之前、3.9.7之前、3.10.4之前和 3.11.1之前版本存在安全漏洞，该漏洞源于竞争条件允许在传输存储库时添加外部协作者。

CVSS 5.8 · Medium EPSS 0.17% · P5
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I. Basic Information for CVE-2023-6803

Vulnerability Information
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Vulnerability Title
Race Condition allows Unauthorized Outside Collaborator
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition in GitHub Enterprise Server allows an outside collaborator to be added while a repository is being transferred. This vulnerability affected all versions of GitHub Enterprise Server since 3.8 and was fixed in version 3.8.12, 3.9.7, 3.10.4, and 3.11.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
GitHub Enterprise Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitHub Enterprise Server是美国GitHub开源的一个应用软件。提供一个将自己的GitHub实例设置为虚拟设备，从而提供可扩展，易于管理的平台。 GitHub Enterprise Server 3.8.12之前、3.9.7之前、3.10.4之前和 3.11.1之前版本存在安全漏洞，该漏洞源于竞争条件允许在传输存储库时添加外部协作者。
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
GitHub Enterprise Server 3.8 ~ 3.8.11 -

II. Public POCs for CVE-2023-6803

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III. Intelligence Information for CVE-2023-6803

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Other References for CVE-2023-6803 (4)

Same Patch Batch · GitHub · 2023-12-21 · 13 CVEs total

CVE-2023-46648 8.3 HIGH Insufficient Entropy in GitHub Enterprise Server Management Console Invitation Token
CVE-2023-6746 8.1 HIGH Sensitive Information in Log File in GitHub Enterprise Server
CVE-2023-46647 8.0 HIGH Improper Privilege Management in GitHub Enterprise Server management console leads to priv
CVE-2023-6847 7.5 HIGH Improper Authentication in GitHub Enterprise Server leading to Authentication Bypass for P
CVE-2023-6802 7.2 HIGH Sensitive Information in Log File in GitHub Enterprise Server
CVE-2023-46645 6.8 MEDIUM Path traversal in GitHub Enterprise Server leading to arbitrary file reading when building
CVE-2023-6804 6.5 MEDIUM Improper Privilege Management allows for arbitrary workflows to be run
CVE-2023-46649 6.3 MEDIUM Race Condition allows Administrative Access on Organization Repositories
CVE-2023-46646 5.3 MEDIUM GitHub Enterprise Server 安全漏洞
CVE-2023-51379 4.9 MEDIUM Incorrect Authorization for Issue Comments in GitHub Enterprise Server
CVE-2023-6690 3.9 LOW GitHub Enterprise Server 安全漏洞
CVE-2023-51380 2.7 LOW Incorrect Authorization allows Read Access to Issue Comments in GitHub Enterprise Server

IV. Related Vulnerabilities

Same product: Enterprise Server
Same vendor: GitHub
Same weakness: CWE-367

V. Comments for CVE-2023-6803

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