How to Use SQLScan for Quick Vulnerability Assessments Web application security requires fast, reliable tools to identify vulnerabilities before malicious actors can exploit them. SQLScan is a lightweight, terminal-based security tool designed to automate the process of finding SQL injection (SQLi) vulnerabilities and scanning web directories.
This guide covers how to install, configure, and run SQLScan to conduct efficient vulnerability assessments. What is SQLScan?
SQLScan is an open-source vulnerability scanner written in PHP. Unlike heavier frameworks like sqlmap, which focus deeply on exploitation and database takeover, SQLScan is optimized for speed and initial discovery. It quickly checks target URLs for input vulnerabilities and scans for common backend directories that might leak sensitive information. Prerequisites and Installation
Because SQLScan is a PHP-based command-line utility, you must ensure your system has the correct environment installed. It runs natively on Linux distributions like Kali Linux, Ubuntu, or macOS.
Install PHP and cURL: Ensure your system has PHP and the cURL extension. sudo apt update sudo apt install php php-curl git -y Use code with caution.
Clone the Repository: Download the latest version of SQLScan from its official GitHub repository. git clone https://github.com Use code with caution.
Navigate and Set Permissions: Move into the directory and make the primary script executable. cd sqlscan chmod +x sqlscan.php Use code with caution. Running Your First Scan
SQLScan operates through a simple command-line interface. To initiate a basic vulnerability assessment against a target website, execute the script using PHP and provide the target URL. php sqlscan.php –url http://example.com Use code with caution. Key Step-by-Step Actions Performed by the Tool:
SQL Injection Testing: The tool injects standard SQL payloads (such as quotes, boolean logic, and sleep commands) into the URL parameters to observe if the database returns errors or abnormal response times.
Directory Brute-Forcing: It simultaneously checks for common hidden directories like /admin/, /config.php, or /backup/.
Exploit Verification: If a parameter proves vulnerable, SQLScan highlights the exact injection point. Analyzing the Output
The tool outputs results directly to the terminal using clear color-coding:
Green/Info: Normal operations, directory scanning progress, and server headers.
Red/Vulnerable: Identified SQL injection entry points or exposed sensitive files.
When a vulnerability is found, note the specific parameter (e.g., ?id=) and the type of SQL error triggered (MySQL, PostgreSQL, MSSQL). This data is essential for your assessment report. Best Practices and Safety
Authorized Testing Only: Only scan web applications that you own or have explicit, written permission to test. Unauthorized scanning is illegal.
Combine Tools: Use SQLScan for the initial, rapid assessment phase. If it discovers a vulnerability, transition to sqlmap for deeper database structure analysis and risk verification.
Remediation: If SQLScan flags a parameter, secure the source code immediately using parameterized queries (prepared statements) and robust input validation to neutralize the SQL injection risk.
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