ffuf
Fast web fuzzer written in Go for recursive directory discovery, content enumeration, and brute force scans of HTTP request parameters at scale.
Technical Architecture & Overview
ffuf is a fast web fuzzer written in Go. It tests many values from one or more wordlists against HTTP endpoints to find hidden directories, files, and parameters. The tool supports recursion, output filters, rate limits, and custom headers to fit a range of audit workflows.
Targeted Technical Use Cases
Use ffuf to map hidden attack surface, validate routing, and verify that non-public endpoints do not leak sensitive resources.
Evaluation & Trade-offs
Core Strengths
- +Runs many concurrent HTTP requests against a target with low resource use.
- +Supports recursion, output filters, and multiple wordlist modes in one command.
- +Integrates with Burp Suite or other proxies for follow-up review.
Trade-Offs & Limitations
- -Produces many false positives when server responses are inconsistent.
- -Requires a curated wordlist for effective coverage of a target.
Defensive Security Application
Use ffuf during authorized reconnaissance to find accidentally exposed endpoints and confirm that sensitive routes are not reachable from the public internet.
Frequently Asked Questions
What is ffuf?→
ffuf is a fast web fuzzer written in Go. It tests many values from one or more wordlists against HTTP endpoints to find hidden directories, files, and parameters. The tool supports recursion, output filters, rate limits, and custom headers to fit a range of audit workflows.
What is ffuf used for?→
Use ffuf to map hidden attack surface, validate routing, and verify that non-public endpoints do not leak sensitive resources.
What are the strengths of ffuf?→
- +Runs many concurrent HTTP requests against a target with low resource use.
- +Supports recursion, output filters, and multiple wordlist modes in one command.
- +Integrates with Burp Suite or other proxies for follow-up review.
What are the limitations of ffuf?→
- +Produces many false positives when server responses are inconsistent.
- +Requires a curated wordlist for effective coverage of a target.
How is ffuf used defensively?→
Use ffuf during authorized reconnaissance to find accidentally exposed endpoints and confirm that sensitive routes are not reachable from the public internet.