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CVE-2021-32826— Remote code execution in Proxyee-Down

Quick assessment

Affected
proxyee-down-org proxyee-down
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.

proxyee-down是一款开源的免费 HTTP 高速下载器，底层使用netty开发，支持自定义 HTTP 请求下载且支持扩展功能，可以通过安装扩展实现特殊的下载需求。 proxy-down存在操作系统命令注入漏洞，该漏洞源于能够提供扩展脚本的攻击者可利用该漏洞(例如:通过MiTM攻击或托管恶意扩展)可能能够在运行Proxyee-Down的系统上运行任意命令。

CVSS 6.8 · Medium EPSS 1.14% · P66
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I. Basic Information for CVE-2021-32826

Vulnerability Information
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Vulnerability Title
Remote code execution in Proxyee-Down
Source: CVE Program / CVE List V5
Vulnerability Description
Proxyee-Down is open source proxy software. An attacker being able to provide an extension script (eg: through a MiTM attack or by hosting a malicious extension) may be able to run arbitrary commands on the system running Proxyee-Down. For more details including a PoC see the referenced GHSL-2021-053. As of the writing of this CVE there is currently no patched version.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
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
proxy-down 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
proxyee-down是一款开源的免费 HTTP 高速下载器，底层使用netty开发，支持自定义 HTTP 请求下载且支持扩展功能，可以通过安装扩展实现特殊的下载需求。 proxy-down存在操作系统命令注入漏洞，该漏洞源于能够提供扩展脚本的攻击者可利用该漏洞(例如:通过MiTM攻击或托管恶意扩展)可能能够在运行Proxyee-Down的系统上运行任意命令。
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
proxyee-down-org proxyee-down all -

II. Public POCs for CVE-2021-32826

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III. Intelligence Information for CVE-2021-32826

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Other References for CVE-2021-32826 (1)

IV. Related Vulnerabilities

Same weakness: CWE-78