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CVE-2023-34092— Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)

Quick assessment

Affected
vitejs vite
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.

Vite是Vite开源的一种新型的前端构建工具。 Vite 2.9.16版本、3.2.7版本、4.0.5版本、4.1.5版本、4.2.3版本、4.3.9版本存在安全漏洞。攻击者利用该漏洞从应用程序的Vite根路径读取文件。

CVSS 7.5 · High EPSS 3.13% · P88

Public Exploits 1

Nuclei · 1 CVE-2023-34092.yaml [template]

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2023-34092

Vulnerability Information
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Vulnerability Title
Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)
Source: CVE Program / CVE List V5
Vulnerability Description
Vite provides frontend tooling. Prior to versions 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9, Vite Server Options (`server.fs.deny`) can be bypassed using double forward-slash (//) allows any unauthenticated user to read file from the Vite root-path of the application including the default `fs.deny` settings (`['.env', '.env.*', '*.{crt,pem}']`). Only users explicitly exposing the Vite dev server to the network (using `--host` or `server.host` config option) are affected, and only files in the immediate Vite project root folder could be exposed. This issue is fixed in vite@4.3.9, vite@4.2.3, vite@4.1.5, vite@4.0.5, vite@3.2.7, and vite@2.9.16.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
路径等价：’//multiple/leading/slash’
Source: CVE Program / CVE List V5
Vulnerability Title
Vite 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vite是Vite开源的一种新型的前端构建工具。 Vite 2.9.16版本、3.2.7版本、4.0.5版本、4.1.5版本、4.2.3版本、4.3.9版本存在安全漏洞。攻击者利用该漏洞从应用程序的Vite根路径读取文件。
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
vitejs vite < 2.9.16 -

II. Public POCs for CVE-2023-34092

# POC Description Source Link Shenlong Link
1 test-cve-2023-34092 https://github.com/FlapyPan/test-cve-2023-34092 POC Details
2 Vite dev server could allow reading files from the Vite project root by bypassing server.fs.deny with double forward-slash paths (//). This affects exposed dev servers only. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-34092.yaml POC Details
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III. Intelligence Information for CVE-2023-34092

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Patches & Fixes for CVE-2023-34092 (2)

Vendor Advisories for CVE-2023-34092 (1)

IV. Related Vulnerabilities

Same product: vite
Same vendor: vitejs
Same weakness: CWE-50

V. Comments for CVE-2023-34092

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