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CVE-2022-46255— Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE

Quick assessment

Affected
GitHub 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 3.7.0版本存在安全漏洞，该漏洞源于当攻击者将路径名限制为受限制目录时可以实现远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 1.51% · P74

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-46255

Vulnerability Information
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Vulnerability Title
Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE
Source: CVE Program / CVE List V5
Vulnerability Description
An improper limitation of a pathname to a restricted directory vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. A check was added within Pages to ensure the working directory is clean before unpacking new content to prevent an arbitrary file overwrite bug. This vulnerability affected only version 3.7.0 of GitHub Enterprise Server and was fixed in version 3.7.1. This vulnerability was reported via the GitHub Bug Bounty program.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
GitHub Enterprise Server 路径遍历漏洞
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 3.7.0版本存在安全漏洞，该漏洞源于当攻击者将路径名限制为受限制目录时可以实现远程代码执行。
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 GitHub Enterprise Server 3.7 ~ 3.7.1 -

II. Public POCs for CVE-2022-46255

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III. Intelligence Information for CVE-2022-46255

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Same Patch Batch · GitHub · 2022-12-14 · 3 CVEs total

CVE-2022-23741 Incorrect authorization in GitHub Enterprise Server token generation leading to full admin
CVE-2022-46256 Path traversal in GitHub Enterprise Server leading to remote code execution in GitHub Page

IV. Related Vulnerabilities

Same product: GitHub Enterprise Server
Same vendor: GitHub
Same weakness: CWE-22

V. Comments for CVE-2022-46255

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