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CVE-2022-46179— LiuOS vulnerable to Authorization Bypass through User-Controlled Key

Quick assessment

Affected
LiuWoodsCode LiuOS
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.

LiuOS是一个旨在模仿常规操作系统功能的小型 Python 项目。 LiuOS 0.1.1之前版本存在安全漏洞，该漏洞源于允许攻击者将GITHUB_ACTIONS环境变量设置为null或true以外的任何值并跳过身份验证检查。

CVSS 9.2 · Critical EPSS 0.33% · P24

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2022-46179

Vulnerability Information
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Vulnerability Title
LiuOS vulnerable to Authorization Bypass through User-Controlled Key
Source: CVE Program / CVE List V5
Vulnerability Description
LiuOS is a small Python project meant to imitate the functions of a regular operating system. Version 0.1.0 and prior of LiuOS allow an attacker to set the GITHUB_ACTIONS environment variable to anything other than null or true and skip authentication checks. This issue is patched in the latest commit (c658b4f3e57258acf5f6207a90c2f2169698ae22) by requiring the var to be set to true, causing a test script to run instead of being able to login. A potential workaround is to check for the GITHUB_ACTIONS environment variable and set it to "" (no quotes) to null the variable and force credential checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
LiuOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LiuOS是一个旨在模仿常规操作系统功能的小型 Python 项目。 LiuOS 0.1.1之前版本存在安全漏洞，该漏洞源于允许攻击者将GITHUB_ACTIONS环境变量设置为null或true以外的任何值并跳过身份验证检查。
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
LiuWoodsCode LiuOS <= 0.1.0 -

II. Public POCs for CVE-2022-46179

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III. Intelligence Information for CVE-2022-46179

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Patches & Fixes for CVE-2022-46179 (1)

Vendor Advisories for CVE-2022-46179 (1)

IV. Related Vulnerabilities

Same weakness: CWE-639

V. Comments for CVE-2022-46179

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