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CVE-2023-29406— Insufficient sanitization of Host header in net/http

Quick assessment

Affected
Go standard library net/http
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gin-Gonic Gin是Gin-Gonic团队的一个基于Go语言的用于快速构建Web应用的框架。 Gin-Gonic Gin 存在安全漏洞，该漏洞源于Context.FileAttachment 函数的文件名参数未正确清理。

AI Predicted 9.1 Difficulty: Easy EPSS 1.45% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-29406

Vulnerability Information
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Vulnerability Title
Insufficient sanitization of Host header in net/http
Source: CVE Program / CVE List V5
Vulnerability Description
The HTTP/1 client does not fully validate the contents of the Host header. A maliciously crafted Host header can inject additional headers or entire requests. With fix, the HTTP/1 client now refuses to send requests containing an invalid Request.Host or Request.URL.Host value.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Gin-Gonic Gin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gin-Gonic Gin是Gin-Gonic团队的一个基于Go语言的用于快速构建Web应用的框架。 Gin-Gonic Gin 存在安全漏洞，该漏洞源于Context.FileAttachment 函数的文件名参数未正确清理。
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
Go standard library net/http 0 ~ 1.19.11 -

II. Public POCs for CVE-2023-29406

# POC Description Source Link Shenlong Link
1 Implementações de servidores HTML em GO para análise da vulnerabilidade CVE-2023-29406. https://github.com/LuizGustavoP/EP3_Redes POC Details
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III. Intelligence Information for CVE-2023-29406

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Vendor Advisories for CVE-2023-29406 (2)

Other References for CVE-2023-29406 (4)

IV. Related Vulnerabilities

Same product: net/http
Same vendor: Go standard library

V. Comments for CVE-2023-29406

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