Discover Burp Suite 2025.1: New Intruder Options & Bug Fixes

PortSwigger has released Burp Suite 2025.1, an update that introduces cutting-edge features and crucial improvements aimed at streamlining penetration testers’ workflows. Known for its indispensable role in web application security testing, Burp Suite continues to evolve with enhancements that increase usability, efficiency, and technical robustness.

This latest update brings advancements across multiple modules, including Burp Intruder, HTTP response analysis, and interaction management. The integrated browser has also been upgraded to align with modern web standards. This blog delves into the key features of Burp Suite 2025.1, highlighting how they empower cybersecurity professionals to optimize their testing processes.

Key Features and Enhancements in Burp Suite 2025.1

One of the standout features in this release is Burp Intruder’s Auto-Pause Attack functionality. Designed to save time and resources during penetration testing, this feature allows users to configure the tool to pause attacks automatically based on specific conditions in HTTP responses.

For example, the attack will pause if a particular string or expression is detected—or absent—in the response content. This capability is handy in large-scale testing scenarios, where irrelevant results can clutter the process. With Auto-Pause, penetration testers can focus on analyzing meaningful data without manually monitoring the attack progress. Furthermore, this feature helps conserve memory and processing power, ensuring a smoother experience during resource-intensive operations.

Streamlined Vulnerability Detection with Content-Length Mismatch Highlighting

Another critical improvement in Burp Suite 2025.1 is the automated highlighting of Content-Length mismatches in HTTP responses. This feature flags discrepancies between the length declared in the Content-Length header and the actual size of the response body.

This enhancement is especially beneficial in identifying vulnerabilities such as HTTP request smuggling, a severe issue that can lead to unauthorized access or data breaches. By automating this process, Burp Suite reduces the manual effort required to spot anomalies, making vulnerability detection more accurate and less time-consuming.

CSV Export for Collaborator Interactions: Better Reporting and Analysis

The Burp Collaborator module has also received a valuable update: the ability to export interaction data as CSV files. This feature enables penetration testers to seamlessly include detailed interaction logs in their proof-of-concept (PoC) reports or presentations.

Additionally, Burp Collaborator allows users to mark interactions as “read,” a simple yet powerful feature for managing workflow. This makes differentiating between reviewed and pending activities easier, ensuring that no critical interactions are overlooked during assessments.

Browser Upgrade: Enhanced Compatibility and Performance

Burp Suite’s integrated browser has been upgraded to Chromium version 132.0.6834.84 for Windows and macOS and 132.0.6834.83 for Linux. This upgrade ensures compatibility with modern web standards, improving the performance of manual testing workflows.

With this new browser version, testers can work with complex web applications, including those using advanced JavaScript frameworks, without encountering compatibility issues. This update also contributes to the overall stability and speed of Burp Suite, making manual testing a more seamless experience.

Bug Fixes: Addressing Stability and Usability Issues

As with any software update, Burp Suite 2025.1 resolves many bugs to enhance the stability and user experience. Below are some of the key fixes included in this release:

1. Message Editor Improvements:
2. A bug causing incorrect cursor positioning when using the Home and End keys has been fixed, improving navigation within the message editor.
3. Logger View Filter:
4. An issue where the Burp Logger’s view filter failed to reapply correctly after reaching capture limits has been resolved.
5. Configuration Library:
6. Previously, newly saved configurations would not appear in the configuration library without restarting Burp Suite. This inconvenience has now been addressed.
7. Payload Encoding:
8. Problems related to payload encoding when creating new Intruder tabs with encoding disabled have been fixed.
9. Hotkey Functionality:
10. Non-functional hotkeys for adding notes in Burp Organizer and Repeater have been repaired.
11. Copy-Paste Issues:
12. Copy-paste problems affecting Linux and Windows users in BCheck preview screens have been resolved.
13. Extension Tabs:
14. Bugs causing extension-provided tabs to disappear when loading multiple extensions—particularly those implementing WebSocket message editors—have been fixed.

These bug fixes address long-standing concerns, ensuring a smoother and more reliable user experience.

How Burp Suite 2025.1 Enhances Penetration Testing Workflows

The features introduced in Burp Suite 2025.1 are tailored to meet the needs of modern penetration testers, addressing common pain points in web application security assessments. Below, we explore how these improvements enhance workflows:

1. Increased Productivity:
2. The Auto-Pause Attack feature minimizes distractions by allowing testers to focus only on relevant results. This saves time and effort during extensive testing campaigns.
3. Improved Accuracy:
4. Automated detection of Content-Length mismatches reduces the likelihood of human error, ensuring that critical vulnerabilities are identified promptly.
5. Streamlined Reporting:
6. With CSV export capabilities in Burp Collaborator, testers can generate comprehensive reports quickly, providing stakeholders with clear and actionable insights.
7. Enhanced Compatibility:
8. The upgraded Chromium-based browser ensures that even the most complex modern web applications can be tested effectively without compatibility issues slowing down the process.
9. Greater Stability:
10. Resolving bugs and performance issues contributes to a smoother user experience, making Burp Suite a more dependable tool for security professionals.

Why Update to Burp Suite 2025.1?

Staying ahead of the curve is essential for penetration testers and cybersecurity professionals. The advancements in Burp Suite 2025.1 ensure that users can perform thorough, efficient, and accurate security assessments.

Whether conducting large-scale penetration tests or working on a single application, the new features—such as Auto-Pause functionality and Content-Length mismatch detection—can significantly improve productivity and results. The upgraded browser and bug fixes further enhance the tool’s reliability, making it an indispensable part of any security toolkit.

Conclusion

Burp Suite 2025.1 represents a significant step forward in the evolution of web application security testing. With its focus on usability, efficiency, and technical robustness, this update delivers value to penetration testers by addressing everyday challenges and advanced testing needs.

From the introduction of Auto-Pause Intruder attacks to the CSV export capability in Burp Collaborator, these features simplify workflows while maintaining a high standard of security assessment. Combined with the browser upgrade and numerous bug fixes, Burp Suite 2025.1 is a must-have for professionals seeking to elevate their penetration testing capabilities.

Updating to this latest version of Burp Suite is highly recommended for users who value accuracy, efficiency, and a seamless testing experience.

For more:

https://cybersecuritynews.com/burp-suite-2025-1-released/