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CVE-2020-37182— Redir 3.3 - Denial of Service

Quick assessment

Affected
troglobit Redir
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.

Redir是Joachim Wiberg个人开发者的一个UNIX的TCP端口重定向器。 Redir 3.3版本存在安全漏洞，该漏洞源于doproxyconnect函数存在栈缓冲区溢出，可能导致拒绝服务攻击。

CVSS 7.5 · High EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2020-37182

Vulnerability Information
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Vulnerability Title
Redir 3.3 - Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Redir 3.3 contains a stack overflow vulnerability in the doproxyconnect() function that allows attackers to crash the application by sending oversized input. Attackers can exploit the sprintf() buffer without proper length checking to overwrite memory and cause a segmentation fault, resulting in program termination.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Redir 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redir是Joachim Wiberg个人开发者的一个UNIX的TCP端口重定向器。 Redir 3.3版本存在安全漏洞，该漏洞源于doproxyconnect函数存在栈缓冲区溢出，可能导致拒绝服务攻击。
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
troglobit Redir 3.3 -

II. Public POCs for CVE-2020-37182

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III. Intelligence Information for CVE-2020-37182

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Exploits & Public PoCs for CVE-2020-37182 (1)

IV. Related Vulnerabilities

Same vendor: troglobit
Same weakness: CWE-121

V. Comments for CVE-2020-37182

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