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CVE-2021-3019 PoC — Ffay Lanproxy 路径遍历漏洞

Source
https://github.com/Threekiii/Awesome-POC/blob/master/Web%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/Lanproxy%20%E7%9B%AE%E5%BD%95%E9%81%8D%E5%8E%86%E6%BC%8F%E6%B4%9E%20CVE-2021-3019.md
Associated Vulnerability
Title:Ffay Lanproxy 路径遍历漏洞 (CVE-2021-3019)
Description:Ffay Lanproxy是Ffay个人开发者的一个可将局域网内服务代理到公网的内网穿透工具。 ffay lanproxy 0.1 存在路径遍历漏洞，该漏洞允许目录遍历读取/../conf/config.properties来获取到内部网连接的凭据。
File Snapshot

 # Lanproxy 目录遍历漏洞 CVE-2021-3019

## 漏洞描述

Lanproxy是一个将局域网个人电脑、服务器代理到公网的内网穿透工具，支持tcp流量转发，可支持任何tcp上层协议

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