Note: These steps are only necessary if you want to use an external browser for manual testing with Burp. If you prefer, you can just use Burp's embedded browser, which is preconfigured to work with Burp Proxy already. To access the embedded browser, go to the 'Proxy' > 'Intercept' tab, and click 'Open Browser'.
Once you have confirmed that the proxy listener is up and running, you need to configure your browser to use it as its HTTP proxy server. To do this, you change your browser's proxy settings to use the proxy host address (by default, 127.0.0.1) and port (by default, 8080) for both HTTP and HTTPS protocols, with no exceptions.This ensures that all HTTP and HTTPS traffic will pass through Burp. How to configure FoxyProxy to work with BurpSuite in Firefox. Get the full transcript here: https://github.com/ericsherlock/Tutorials/tree/master/BurpWithFoxy. BurpSuite is a proxy, which means that you’ll be forwarding all of the web traffic from your browser through BurpSuite so that you can see each HTTP Request and Response and manipulate it to your heart’s content. First, let’s configure this thing. Foxyproxy: FoxyProxy is an advanced proxy management tool that completely replaces Firefox’s limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic. John the Ripper: John the Ripper is free and Open Source software, distributed primarily in a source code form.
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The process for installing Burp's CA certificate varies depending on which browser you are using. Please select the appropriate link below for detailed information about installing the certificate on your chosen browser.
When you have done this, you can confirm things are working properly by closing all your browser windows, opening a new browser session, and visiting any HTTPS URL. The browser should not display any security warnings, and the page should load in the normal way (you will need to turn off interception again in the 'Proxy' > 'Intercept' tab if you have re-enabled this).
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Installing Burp's CA certificate on a mobile device
Additionally, you may want to install Burp's CA certificate on a mobile device. First, ensure that the mobile device is configured to work with Burp Suite. Then use the links below for help on installing the certificate:
Why do I need to install Burp's CA certificate?
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One of the key functions of TLS is to authenticate the identity of web servers that your browser communicates with. This authentication process helps to prevent a fraudulent website from masquerading as a legitimate one, for example. It also encrypts the transmitted data and implements integrity checks to protect against man-in-the-middle attacks. In order to intercept the traffic between your browser and destination web server, Burp needs to break this TLS connection. As a result, if you try and access an HTTPS URL while Burp is running, your browser will detect that it is not communicating directly with the authentic web server and will show a security warning.
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To prevent this issue, Burp generates its own TLS certificate for each host, signed by its own Certificate Authority (CA). This CA certificate is generated the first time you launch Burp, and stored locally. To use Burp Proxy most effectively with HTTPS websites, you need to install this certificate as a trusted root in your browser's trust store. Burp will then use this CA certificate to create and sign a TLS certificate for each host that you visit, allowing you to browse HTTPS URLs as normal. You can then use Burp to view and edit requests and responses sent over HTTPS, just as you would with any other HTTP messages.
Although this step isn't strictly mandatory, especially if you only want to work with non-HTTPS URLs, we still recommend completing this step. You only need to do it once, and it is required to get the most out of your experience with Burp Suite when using an external browser.
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Note: If you install a trusted root certificate in your browser, then an attacker who has the private key for that certificate may be able to man-in-the-middle your TLS connections without obvious detection, even when you are not using an intercepting proxy. To protect against this, Burp generates a unique CA certificate for each installation, and the private key for this certificate is stored on your computer, in a user-specific location. If untrusted people can read local data on your computer, you may not wish to install Burp's CA certificate.