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CVE-2021-3934— OS Command Injection in ohmyzsh/ohmyzsh

Quick assessment

Affected
ohmyzsh ohmyzsh/ohmyzsh
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.

ohmyzsh是一个开源的、社区驱动的框架，用于管理您的zsh配置。 ohmyzsh 存在操作系统命令注入漏洞，该漏洞源于 ohmyzsh 的 omz_urldecode 函数使用一个 eval 来解码输入，它可以被用来注入命令。这仅在 svn 插件中使用，它需要一个复杂的过程来利用，所以它极不可能被攻击者使用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.60% · P46

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-3934

Vulnerability Information
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Vulnerability Title
OS Command Injection in ohmyzsh/ohmyzsh
Source: CVE Program / CVE List V5
Vulnerability Description
ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ohmyzsh 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ohmyzsh是一个开源的、社区驱动的框架，用于管理您的zsh配置。 ohmyzsh 存在操作系统命令注入漏洞，该漏洞源于 ohmyzsh 的 omz_urldecode 函数使用一个 eval 来解码输入，它可以被用来注入命令。这仅在 svn 插件中使用，它需要一个复杂的过程来利用，所以它极不可能被攻击者使用。
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
ohmyzsh ohmyzsh/ohmyzsh unspecified ~ 6cb41b70a6d04301fd50cd5862ecd705ba226c0e -

II. Public POCs for CVE-2021-3934

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-3934

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Patches & Fixes for CVE-2021-3934 (1)

Vendor Advisories for CVE-2021-3934 (1)

IV. Related Vulnerabilities

Same product: ohmyzsh/ohmyzsh
Same vendor: ohmyzsh
Same weakness: CWE-78

V. Comments for CVE-2021-3934

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