CVE-2025-63406 PoC — groupoffice 安全漏洞

Readme

# CVE-2025-63406 – Security Research Proof-of-Concept (PoC)

This repository contains a **research-oriented Proof of Concept (PoC)** related to the security issue **CVE-2025-63406**, affecting the **GroupOffice** platform.  
The purpose of this project is to **study and understand the vulnerability’s behavior**, assist security teams in **risk evaluation**, and help validate **patches and mitigations** in controlled environments.

> ⚠️ **Important Notice**  
> This PoC is provided **strictly for authorized security research, auditing, and educational analysis**.  
> It must **not** be used against systems without explicit permission.

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## 🔍 About the Vulnerability

CVE-2025-63406 describes a condition in which internal handling of GroupOffice objects—specifically **FieldSet**, **Field**, and **Task** entities—may lead to unintended behavior under certain circumstances.

This project aims to:

- Analyze how the vulnerability can manifest.
- Explore how logical chains involving *create/update/destroy* operations behave.
- Demonstrate the API flow and internal state transitions.
- Help researchers replicate and validate the issue in a safe, isolated environment.

The provided source code focuses on the **logic flow**, not on enabling exploitation.

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## 🧩 Code Overview

The PoC script demonstrates:

- URL normalization and input sanitization.
- Authentication flow using GroupOffice’s API.
- Retrieval and management of session cookies and CSRF tokens.
- Creation and removal of **FieldSet** and **Field** objects.
- Interaction with the **JMAP API** (`/api/jmap.php`).
- Extraction and inspection of server-side state responses.
- Identification and cleanup of previously created research artifacts.

This structure is intended for analysis and understanding of internal behavior rather than practical exploitation.

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## 🧪 Research Goals

This PoC assists researchers in:

- Understanding how the vulnerability arises.
- Reproducing the logical sequence of events internally.
- Observing object handling mechanisms inside GroupOffice.
- Testing and validating vendor patches in a controlled environment.

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## ⚙️ Environment Requirements

To run the PoC in a **safe, isolated research environment**, you will need:

- Python **3.10+**
- The `requests` library
- A controlled, local, test-only instance of GroupOffice affected by CVE-2025-63406

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## ⚠️ Ethical & Responsible Use

This project must **only** be used for:

✔️ Internal security auditing  
✔️ Research and vulnerability analysis  
✔️ Patch validation  
✔️ Educational study in isolated labs 

## 🔥 USAGE

```bash
python3 CVE-2025-63406.py \
    --target <TARGET_URL> \
    --username <USERNAME> \
    --password <PASSWORD> \
    --command <TEST_COMMAND>
```

## 📄 Requirements

See the `requirements.txt` file for Python dependencies.

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