CVE-2021-3773 PoC — netfilter 信息泄露漏洞

Source

Associated Vulnerability

Description

This script exploits the "Port Shadow" vulnerability (CVE-2021-3773) in OpenVPN servers using Netfilter for NAT.

Readme

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# 🚀 Port Shadow Exploit (CVE-2021-3773) 🚀

### Description
This script exploits the "Port Shadow" vulnerability (CVE-2021-3773) in OpenVPN servers using Netfilter for NAT. The attack involves creating port shadows to deanonymize victims or perform a man-in-the-middle attack.

### Features
- **🎯 Targeted Attacks**: Dynamically detects the victim’s open ports.
- **⚡ Concurrent Threads**: Utilizes threading for efficient scanning.
- **🛡️ Advanced Stealth Techniques**: Randomizes scan intervals to evade detection.
- **📜 Detailed Logging**: Maintains logs of the attack process for monitoring.

### Requirements
- Python 3.x
- Scapy library
- Root or Administrator privileges

### Installation
1. **Clone the Repository**:
    ```sh
    git clone https://github.com/d0rb/CVE-2021-3773.git
    cd port-shadow-exploit
    ```

2. **Install Dependencies**:
    ```sh
    pip install -r requirements.txt
    ```

### Usage
1. **Configuration**:
    - Edit the script to set the appropriate IP addresses and port ranges.

2. **Run the Script**:
    ```sh
    sudo python3 port_shadow_exploit.py
    ```

### Ethical Use ⚖️
This script is for **educational purposes only**. Use it only in controlled environments with explicit permission. Unauthorized use can lead to **legal consequences**.

### Disclaimer
The authors are not responsible for any misuse of this script. Always follow ethical guidelines and ensure you have the proper authorization before conducting any network testing.


### Contributing 🤝
Contributions are welcome! Please submit a pull request or open an issue to discuss your ideas.

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**Stay ethical, stay safe!** 🚀

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File Snapshot

 [4.0K]  /data/pocs/742e2920401ba206e0ded9e5965ffda7ef5c0889
├── [3.1K]  PoC.py
└── [2.0K]  README.md

0 directories, 2 files

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