OpenVPN running on a Virtual Private Server (VPS).Note, however, that most of these can be replaced by similar tools to accomplish the same goals. In this guide, I will describe a setup that makes use of the following tools. This post outlines one possible way of configuring Burp Suite to send all its traffic through a remote VPN, without having to run the VPN on your own machine. If you don’t want to send all of your local traffic over the same VPN, configuring an easy-to-use setup can sometimes be a pain. ("Listen :"+e.When performing security tests, you will often be required to send all of your traffic through a VPN.
("request: " + request + " request: " + request + " nextline: " + nextLine) String filePath = reqArray.substring(1) // index.html (or other path): remove the '/' InputStream input = clientSocket.getInputStream() īufferedReader br = new BufferedReader(new InputStreamReader(input)) Socket clientSocket = listenSocket.accept() ServerSocket listenSocket = new ServerSocket(serverPort) So let’s set the variable to a local address, such as http꞉//127.0.0.1:8080/BE-Proxy.pac. Therefore, only or protocols can be used.
It appears Internet Settings are using WinHttp proxy service to retrieve the file stored at the AutoConfigURL, which means protocols such as ftp:// or file:// are not supported. Some online research showed it would not be handled by the Internet Settings. And even better, these keys can be edited without admin rights! This means we can modify it to anything we want, so why not setting it to something like file://C:\temp\BR-Proxy.pac? One of the hits was found in the Internet Settings, which seems like a very good candidate. The URL for the PAC file is shown in the system proxy settings, but where is this URL actually stored? Most probably in a registry key! By searching for the URL of the PAC file inside the registry editor, we can see some hits.
Burp suite configure proxy download#
We now need to make the system download our PAC file instead of the one set by the organization. So a quick Java check later, and we’re good to go, right? Luckily, Burp has a standalone version as well, which only requires Java.
Burp suite configure proxy install#
However, what if that’s not possible? When you receive a customer’s computer, you can be pretty sure you won’t be able to install Burp through the installer since you’re typically not allowed to run executables or to install applications. Problem solved! Install Burp, launch the browser and you’re good to go. You are absolutely correct! Burp introduced an internal browser in 2020 which is automatically preconfigured with the correct proxy settings. That’s easy! We just use Burp’s internal browser! This blog post shows how you can still proxy a target application through Burp even if the proxy settings are managed by the enterprise. We recently encountered such a situation during an engagement and we wanted to share our solution.
We will most probably have very limited permissions, which can block us from installing applications or modifying proxy settings. When this happens, we can face different challenges in order to have a working test setup. As penetration testers, we sometimes have to perform web application security assessments from our customer’s computers instead of our beloved machines.
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