CVE-2026-71262— IoTSharp BlobStorageController缺失认证与路径遍历漏洞
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一、 漏洞 CVE-2026-71262 基础信息
漏洞信息
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Vulnerability Title
IoTSharp BlobStorageController Missing Authentication and Path Traversal
来源: CVE Program / CVE List V5
Vulnerability Description
IoTSharp BlobStorageController.cs lacks the [Authorize] attribute applied to every other controller in the application (DevicesController, CustomersController, TenantsController, etc.), and no global authorization FallbackPolicy is configured in Startup.cs, leaving its Upload/Download/List/Modify/Delete endpoints reachable by unauthenticated remote attackers. The path/filename parameters passed to these endpoints (e.g. `_blob.WriteFileAsync($"{path}/{formFile.FileName}", ...)`) are used without sanitization, enabling path traversal that allows writing, reading, modifying, and deleting arbitrary files outside the intended blob storage directory, including web-accessible paths that can be leveraged for remote code execution via webshell upload.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-71262 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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三、漏洞 CVE-2026-71262 的情报信息
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CVE-2026-71262 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-71262
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