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CVE-2023-46648— Insufficient Entropy in GitHub Enterprise Server Management Console Invitation Token

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及更高版本存在安全漏洞，该漏洞源于存在熵不足漏洞，允许攻击者强行向用户发出GHES管理控制台的邀请。

CVSS 8.3 · High EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1110.001 · Password Guessing
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I. Basic Information for CVE-2023-46648

Vulnerability Information
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Vulnerability Title
Insufficient Entropy in GitHub Enterprise Server Management Console Invitation Token
Source: CVE Program / CVE List V5
Vulnerability Description
An insufficient entropy vulnerability was identified in GitHub Enterprise Server (GHES) that allowed an attacker to brute force a user invitation to the GHES Management Console. To exploit this vulnerability, an attacker would need knowledge that a user invitation was pending. 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. This vulnerability was reported via the GitHub Bug Bounty program.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
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及更高版本存在安全漏洞，该漏洞源于存在熵不足漏洞，允许攻击者强行向用户发出GHES管理控制台的邀请。
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 3.8.0 ~ 3.8.12 -

II. Public POCs for CVE-2023-46648

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III. Intelligence Information for CVE-2023-46648

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Other References for CVE-2023-46648 (4)

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

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-2023-6803 5.8 MEDIUM Race Condition allows Unauthorized Outside Collaborator
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-331

V. Comments for CVE-2023-46648

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