what is Wfuzz?

Wfuzz

is a web application security assessment tool. It's used by penetration testers and ethical hackers for various purposes, including discovering resources (URIs), identifying and exploiting injection vulnerabilities, and brute-forcing GET and POST parameters.
Key features and functionalities of Wfuzz include:

1. Multiple Injection Points: Wfuzz allows testing for vulnerabilities in various parts of an HTTP request, including the URL, parameters, headers, POST data, and cookies.

2. Support for Multiple Web Authentication Schemes: It supports several authentication mechanisms, including Basic, Digest, NTLM, and Kerberos.

3. Customizable: It allows extensive customization and scripting, providing support for multiple encodings and payloads.

4. Brute-forcing Capabilities: Wfuzz can be used for brute-forcing web applications. It can be used to identify hidden directories, files, parameters, and other functionalities within a web app.

5. Fuzzing: The core functionality of Wfuzz revolves around fuzzing, i.e., automated sending of a large number of HTTP requests with different inputs. It can help identify vulnerabilities like SQL injection, XSS, and more.

6. Proxy Support: It can work through a proxy, making it versatile for different testing environments.

7. Output Customization: Wfuzz allows the results to be output in different formats, making it easier to interpret the results or use them in other tools.

An example command using Wfuzz might look like this:

bashCopy code

wfuzz -c -z file,wordlist.txt --hc 404 http://example.com/FUZZ
This command uses Wfuzz to test the 'example.com' website with different paths listed in 'wordlist.txt', hiding (with --hc 404) responses that result in a 404 Not Found status code.
As with any security tool, Wfuzz should be used responsibly. It's important to have permission and authorization to test the targeted system. Unauthorized testing or probing can be illegal and unethical. Wfuzz is valuable for identifying vulnerabilities so they can be fixed, not for exploiting them without permission.