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116 lines
4.3 KiB
Plaintext
116 lines
4.3 KiB
Plaintext
---
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title: "PegaSwitch"
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---
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{% include toc title="Table of Contents" %}
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### Required Reading
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PegaSwitch is a developer-focused exploitation toolkit for the Switch developed by ReSwitched. It is compatible with firmware versions 1.0.0 - 3.0.0.
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The toolkit uses a combination of vulnerabilities to take over the WebKit-based browser, giving the user a shell which can be used to read / write memory, call native functions, and otherwise explore the functionality of the Switch.
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Note that the current homebrew exploit has the side-effect of corrupting your device's Mii Database. While this effect is harmless, it will result in the loss of any user-created Miis.
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{: .notice--warning}
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### What You Need
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* A supported operating system
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+ MacOS and most linux distributions are supported
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+ Windows is best supported using a [Windows Subsystem for Linux](https://docs.microsoft.com/en-us/windows/wsl/install-win10) distribution
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* The [git](https://git-scm.com/) version control system
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* The [Node.JS](https://nodejs.org/en/download/package-manager/) JavaScript runtime (current release)
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### Instructions
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#### Section I - Network Configuration
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PegaSwitch works by hosting a [captive portal](https://en.wikipedia.org/wiki/Captive_portal) using DNS redirection.
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For this to work, your device must be able to connect to your PC over the network.
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1. Ensure no other applications are bound to UDP port 53 or TCP ports 80 and 8100
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+ WSL: look at the "Listening Ports" section of the "Network" tab in `resmon.exe`
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+ Linux / MacOS: view the output of `sudo netstat -tulpn`
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1. Ensure your firewall does not block incoming connections to any of these ports
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#### Section II - Running PegaSwitch
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~~~ bash
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# clone the repository
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git clone https://github.com/reswitched/pegaswitch
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# install dependencies
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cd pegaswitch
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npm install
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# start PegaSwitch
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# Windows users: omit the 'sudo'
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sudo node start.js
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~~~
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#### Section III - DNS Configuration
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Note that these DNS servers will need to be set on each network you connect your device to for it to be able to trigger the exploit.
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{: .notice--info}
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1. Launch System Settings on your device
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1. Navigate to `Internet` -> `Internet Settings`
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1. Select your current network
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+ This is signified by a green check mark next to the network
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1. Select "Change Settings"
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1. Set "DNS Settings" to "Manual"
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1. Set "Primary DNS" and "Secondary DNS" to your PC's IP address
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+ This will be displayed in PegaSwitch
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1. Save the network settings
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1. Return to `Internet Settings`
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#### Section IV - Initial Connection
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1. Navigate to `Internet` -> `Internet Settings`
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1. Select your current network
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1. Select "Connect to this Network"
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1. If the DNS connection was successful, you will see the message "Registration is required to use this network."
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1. Select "Next"
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1. The PegaSwitch webpage will load
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1. If the exploit was successful, you will now have a PegaSwitch shell connected to your console
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#### Section V - Alternative Browser Applets (Optional)
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There are actually [multiple](http://switchbrew.org/index.php?title=Internet_Browser#Browser_Applets) internet browsers on the Switch, and any of them can be used to trigger the browser exploit.
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While we used the connection test browser applet to initially trigger the exploit, it may be more convenient in the future to use another browser applet.
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Triggering the browser exploit using either of these methods will have the same effect as triggering the exploit through the Connection Test method we used before.
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##### eShop Sign In Prompt
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To use this method, create a second account on your device. Do not connect it to a Nintendo Account.
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1. Launch Nintendo eShop
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1. Select the second account
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1. Select "Sign In and link"
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1. The browser applet will launch
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##### Game Update Prompt
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To use this method, you must have at least one game on your home screen.
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Note that, if you were not connected to the correct DNS servers, this method would *update* your device. It is dangerous!
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{: .notice--danger}
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1. Press (+) with any game highlighted
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1. In the "Software Update" tab, select "Via the Internet"
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1. The browser applet will launch
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___
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You can now easily connect to your device using the PegaSwitch environment.
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{: .notice--success}
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For debugging purposes, you may want to [enable extra error info](troubleshooting#enable-extra-error-info).
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{: .notice--info}
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### Return to [Homebrew Development](homebrew-development)
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{: .notice--primary}
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