关联漏洞
标题：
Apache Struts 2 输入验证错误漏洞
(CVE-2017-5638)
描述：Apache Struts是美国阿帕奇（Apache）软件基金会的一个开源项目，是一套用于创建企业级Java Web应用的开源MVC框架，主要提供两个版本框架产品，Struts 1和Struts 2。 Apache Struts 2 2.3.32之前的2 2.3.x版本和2.5.10.1之前的2.5.x版本中的Jakarta Multipart解析器存在安全漏洞，该漏洞源于程序没有正确处理文件上传。远程攻击者可借助带有＃cmd=字符串的特制Content-Type HTTP头利用该漏洞执行任意命令。
描述
Apache Struts2 CVE-2017-5638 (Safe Educational Demo)
介绍
# PoC: Apache Struts2 CVE-2017-5638 (Safe Educational Demo)
## 📌 Overview
This project is a **Proof-of-Concept (PoC)** for **CVE-2017-5638**, a famous Apache Struts2 vulnerability that allowed attackers to execute arbitrary code on affected servers.
⚠️ This repository contains a **safe, non-exploitative demo** designed for **educational purposes only**. It does not perform any malicious actions.
---
## 🔎 About the Vulnerability
- **CVE ID**: [CVE-2017-5638](https://nvd.nist.gov/vuln/detail/CVE-2017-5638)
- **Type**: Remote Code Execution (RCE)
- **Component**: Apache Struts2 (Jakarta Multipart Parser)
- **Root Cause**: User input in the `Content-Type` header was improperly passed to **OGNL** (Object-Graph Navigation Language), allowing attackers to inject and execute code on the server.
---
## 🛠️ How This PoC Works
This script demonstrates how an attacker might *test* for the vulnerability — but in a **harmless way**.
- It sends a specially crafted `Content-Type` header containing an OGNL expression.
- Instead of executing dangerous commands, the payload simply attempts to add a custom header (`X-Vuln: Vulnerable`) to the server’s response.
- If the header appears, it means the server is processing OGNL input and is **likely vulnerable**.
This makes it a safe demonstration of the vulnerability without actually exploiting it.
---
## ▶️ Usage
```bash
# Install required package
pip install requests
# Run the script
python3 struts2_poc.py
# Enter a target URL when prompted (example)
http://example.com/
文件快照
[4.0K] /data/pocs/cf70a41435b9a2c61a137d43696d79b61783514c
├── [ 808] PoC-CVE-2017-5638.py
└── [1.5K] README.md
0 directories, 2 files
备注
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