Beef - Browser Exploitation Framework
What is BeEF?
BeEF is an open-source security tool designed to exploit vulnerabilities in web browsers. It allows penetration testers to assess the security posture of a target environment by using the web browser as a pivot point. By taking advantage of the trust users place in their browsers, BeEF can explore a wide array of attack vectors and execute various payloads.
Key Features of BeEF
- Browser Hooking: BeEF works by "hooking" a web browser, which means it injects a script into the target browser. Once the browser is hooked, it can be controlled remotely.
- Command Modules: BeEF includes numerous modules that can execute different types of attacks and exploits, such as keylogging, phishing, network reconnaissance, and more.
- Integration: BeEF can be integrated with other penetration testing tools like Metasploit to enhance its capabilities.
- Cross-Origin Requests: It can exploit vulnerabilities to make cross-origin requests, allowing it to bypass same-origin policy restrictions in certain contexts.
Step 1: Install Dependencies
Before installing BeEF, ensure that your system has the required dependencies.
sudo apt-get update
sudo apt-get install git curl sqlite3 ruby-full build-essential
By default, BeEF runs on http://localhost:3000/ui/panel. The default credentials for the web interface are beef for both the username and password.
Step 5: Access the BeEF Web Interface
Open your web browser and go to http://localhost:3000/ui/panel. Log in using the default credentials.
Step 6: Hook a Browser
To hook a browser, you need to get the target to execute a BeEF hook script. The hook script URL typically looks like this:
http://<beef_server_ip>:3000/hook.js
You can include this script in a web page you control, or use social engineering techniques to get the target to visit a page that includes the script.
Step 7: Using BeEF to Exploit
Once a browser is hooked, it will appear in the BeEF control panel. You can now use various modules to test and exploit the hooked browser.
- Select the Hooked Browser: In the BeEF control panel, you will see a list of hooked browsers under "Hooked Browsers."
- Choose an Exploit: Select a module from the "Commands" section. For example, you can choose the "Alert Dialog" module to display an alert box on the target browser.
- Execute the Command: Fill in any required parameters for the selected module and click "Execute."
Example: Running an Alert Command
- Navigate to "Commands" in the left panel.
- Choose a command like "Social Engineering" -> "Alert Dialog."
- Enter the text you want to display in the alert box.
- Click "Execute."
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