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Vulnerability Fuzzer

The Vulnerability Fuzzer is a simple automated tool that injects common attack payloads into URL query parameters to identify potential validation flaws, such as SQL Injection, Cross-Site Scripting (XSS), or Local File Inclusion (LFI).

Syntax

opsforge cyber fuzzer [URL] [OPTIONS]

Arguments

  • URL: The target URL to fuzz (e.g., http://example.com/search).

Options

  • -p, --payloads PATH: Path to a file containing custom payloads (one per line).
  • --param TEXT: The query parameter to inject payloads into. [default: id]
  • --help: Show this message and exit.

Usage Examples

Basic fuzzing on the 'id' parameter

opsforge cyber fuzzer http://scanning.me/profile

Fuzzing a specific 'search' parameter with custom payloads

opsforge cyber fuzzer http://scanning.me/find -p xss_payloads.txt --param search

How It Works

  1. It iterates through a list of payloads (either defaults or from a provided file).
  2. It sends an HTTP GET request to the target URL for each payload, injecting the payload into the specified query parameter.
  3. It records the HTTP status code and response body size.

Analyzing Results

Look for anomalies in the output table: - Status 500 (Internal Server Error): Often indicates a crash or unhandled exception on the server, which could be a sign of a vulnerability (especially SQLi). - Status 200 with unusual response size: Significant changes in response size compared to other payloads might indicate that the payload successfully changed the page content (e.g., successful XSS injection or LFI).

Technical Details

This tool uses the requests library to perform HTTP operations. It is designed for basic, deterministic vulnerability probing.

[!WARNING] This tool performs "active" probing and will be logged by the target web server. Use only on systems you own or have explicit permission to test.