web application penetration testing checklist

1. Information Gathering

Identify target web application and its components.

Enumerate subdomains and related services.

Gather DNS information and perform zone transfers.

Use WHOIS to gather information about the domain owner.

Identify technologies used (e.g., server software, frameworks).

Perform web crawling to map the application structure.

Collect user and session information.

2. Scanning and Enumeration

Perform port scanning to identify open ports and services.

Use a web application scanner to identify vulnerabilities.

Enumerate directories and files using tools (e.g., DirBuster).

Check for default credentials and configurations.

Identify and analyze APIs used by the application.

3. Vulnerability Assessment

Assess for common web vulnerabilities (e.g., OWASP Top Ten).

Test for SQL Injection vulnerabilities.

Check for Cross-Site Scripting (XSS) vulnerabilities.

Assess for Cross-Site Request Forgery (CSRF) risks.

Evaluate for security misconfigurations.

Check for sensitive data exposure (e.g., in URLs, responses).

Test for authentication and session management flaws.

4. Exploitation

Attempt to exploit identified vulnerabilities.

Test for privilege escalation vulnerabilities.

Verify the impact of successful exploits.

Attempt to bypass security controls (e.g., WAF).

Perform logic flaws testing (e.g., business logic vulnerabilities).

5. Post-Exploitation

Assess data breach impact and data exfiltration.

Analyze session hijacking possibilities.

Check for persistence mechanisms in the application.

Document findings and evidence from the exploitation phase.

6. Reporting

Compile a detailed report of findings.

Include executive summary and technical details.

Provide risk assessments and remediation recommendations.

Organize findings by severity and priority.

Include screenshots and evidence of vulnerabilities.

7. Remediation and Retesting

Assist in remediation efforts for identified vulnerabilities.

Retest to ensure vulnerabilities have been properly fixed.

Validate that no new vulnerabilities have been introduced.

Conduct a follow-up assessment as necessary.

8. Continuous Improvement

Update testing methodologies based on findings.

Share lessons learned with the development team.

Implement security training for developers and staff.

Establish a regular testing schedule for ongoing security assessments.