How to Use Burp Suite for Web Application Security Testing: Beginner Guide

How to Use Burp Suite for Web Application Security Testing: Beginner Guide

Burp Suite is the most widely used platform for web application security testing, used by penetration testers, security engineers, and QA teams integrating DAST into CI/CD pipelines. This guide covers the essentials for teams getting started with Burp Suite Community Edition, from setup through your first security scan.

Setup and Configuration

Install and Configure the Proxy

Download Burp Suite Community Edition from portswigger.net. After launching the application, go to Proxy and then Proxy Settings. The default listener is 127.0.0.1:8080. Configure your browser to route traffic through that address using manual proxy settings or the FoxyProxy extension.

Install the CA Certificate

Navigate to http://burpsuite via your proxied browser, select CA Certificate, and download the certificate in DER format. Import it into your browser's certificate trust store. This step allows Burp Suite to intercept and inspect HTTPS traffic without triggering browser security warnings.

Core Workflow: Intercepting and Analysing Traffic

Intercept a Request

Enable intercept in the Proxy tab. Load a page in your browser. Burp Suite captures each HTTP request before it reaches the server. Use Forward to send the request on, Drop to discard it, or Send to Repeater to modify the request and replay it manually.

Use the HTTP History

Disable intercept for normal browsing sessions. Use Proxy then HTTP History to browse all captured requests. Right-click any request to send it to the Scanner, Intruder, or Repeater for further testing.

Repeater for Manual Testing

Send a login request to Repeater. Modify the username or password parameter with SQL injection payloads. Click Send and observe the response. A successful injection often changes the response body or the HTTP status code, indicating that user input is being passed unsanitised to the database layer.

Finding Common Vulnerabilities

SQL Injection

In Repeater or Intruder, try single-quote injection in form fields, search boxes, and URL parameters. A database error message in the response indicates potential SQL injection. Parameterised queries are the standard remediation.

XSS (Cross-Site Scripting)

Submit a script tag payload in search fields and comment fields. If the payload appears unescaped in the response HTML, the page is vulnerable to reflected XSS. Output encoding is the standard remediation.

Authentication Issues

In Intruder, brute-force a login form with a wordlist to identify weak credentials. Use the Sequencer tool to analyse session token randomness. Predictable session identifiers indicate session fixation risk.

Limitations of Community Edition

Burp Suite Community Edition does not include the automated scanner, which is available in the Professional Edition. For systematic vulnerability discovery rather than manual testing, the Professional Edition is required. Teams without a Burp Pro licence can supplement Community Edition with OWASP ZAP, which is free and includes an active scanner, to handle automated scanning while using Burp Suite for manual interception and exploitation testing.

Integrating Burp Suite into CI/CD

Burp Suite Professional exposes a REST API and a command-line interface, which enable automated DAST runs as a CI gate. Teams configure a nightly Burp scan against a staging environment to catch regressions before they reach production. For teams building a full security testing programme alongside functional QA, the application security testing tools guide covers SAST, DAST, IAST, and MAST tools with comparisons.

For a broader comparison of application security testing tools beyond Burp Suite, including OWASP ZAP, Nessus, and Acunetix, see Application Security Testing Tools: OWASP ZAP, Burp Suite and More. For security testing as part of a shift-left pipeline, see How to Implement Shift-Left Testing in Your CI/CD Pipeline.