abrewer251/cve-2020-3452_cisco_asa_pathtraversalCVE-2020-3452 — Cisco ASA/FTD Path Traversal 脆弱性の概念実証（PoC）スクリプト。既知のファイルターゲットの自動抽出をサポートし、安全性のため正常なダウンロード数に上限を設定しています。認可されたセキュリティテストおよび調査目的のみを対象としています。
CVE-2020-3452 — Cisco ASA/FTD パストラバーサル脆弱性の Proof-of-concept スクリプト。既知のファイルターゲットの自動抽出をサポートし、安全性のためダウンロード成功数にハードリミットを設定しています。許可されたセキュリティテストおよび研究目的専用です。
CVE-2020-3452 — Cisco ASA/FTD パストラバーサル脆弱性の Proof-of-concept スクリプト。既知のファイルターゲットの自動抽出をサポートし、安全性のためダウンロード成功数にハードリミットを設定しています。許可されたセキュリティテストおよび研究目的専用です。
# CVE-2020-3452 PoC — Cisco ASA/FTD Path Traversal
This is a modified proof-of-concept exploit script for [CVE-2020-3452](https://nvd.nist.gov/vuln/detail/CVE-2020-3452), a directory traversal vulnerability affecting Cisco ASA and FTD devices.
The vulnerability allows unauthenticated, remote attackers to **read arbitrary files** on affected systems via a crafted HTTP request. This script automates that process by attempting to retrieve a predefined list of common configuration, portal, and HTML files, and stores successful responses locally.
> **⚠️ For authorized testing and research only. Use responsibly.**
---
## ✅ Features
- 🔁 Iterates through a curated list of target file paths known to exist on ASA/FTD systems.
- ✅ Only writes responses with **HTTP 200** and **non-empty content**.
- 🧮 Stops automatically after **200 successful downloads** to prevent abuse or noise.
- 🗂️ Writes all files to an `output/` directory, creating it automatically.
- 🔒 Sanitizes all output filenames to prevent accidental traversal or injection.
- 🧼 Suppresses SSL warnings (ASA certs are often self-signed).
---
## 🖥️ Usage
```bash
# Install dependencies
pip install requests
# Run the script
python3 cve_2020_3452.py <target-host>
```
Example:
```bash
python3 cve_2020_3452.py firewall.example.com
```
All successful files will be saved to the `output/` folder.
You may also run the script interactively:
```bash
python3 cve_2020_3452.py
```
---
## 🔧 Configuration
| Variable | Description |
| -------------------- | --------------------------------------------------------------------- |
| `MAX_SUCCESS_WRITES` | Stops script after this number of HTTP 200 file saves (default: 200). |
| `OUTPUT_DIR` | Directory where files will be written (default: `output/`). |
You can safely edit these at the top of the script.
---
## 📚 Background
* **CVE**: [CVE-2020-3452](https://nvd.nist.gov/vuln/detail/CVE-2020-3452)
* **Affected**:
* Cisco ASA: 9.6 – 9.14.1.10
* Cisco FTD: 6.2.3 – 6.6.0.1
* **Impact**: Allows unauthenticated file disclosure via crafted URL traversal.
---
## ⚠️ Legal & Ethical Notice
This script is provided **for educational and authorized security research purposes only**.
* 🛑 **Do NOT use** this tool on systems you do not own or explicitly have permission to test.
* 🧑⚖️ Unauthorized use may be illegal and unethical under local, federal, or international law.
* 🤝 You assume all responsibility for use of this tool.
---
## 🙏 Credits
* Original author: [@freakyclown](https://github.com/cygenta)
* Modifications: hard-coded success limit, file hygiene, output directory isolation
---
## 📜 License
MIT License — see [`LICENSE`](https://github.com/abrewer251/cve-2020-3452_cisco_asa_pathtraversal/blob/HEAD/LICENSE) for details.
セットアップを簡単にするため、リポジトリにこれを含めてください：
requests
MIT License
Copyright (c) 2025
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction...