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The Complete Security Testing Checklist for Web Applications

Protect your application from cyber threats with this comprehensive security testing checklist covering OWASP Top 10 vulnerabilities and beyond.

AssureLogix Team

Quality Assurance Expert

December 20, 2024
3 min read

In an era of increasing cyber threats, security testing is not optional—it's essential. A single vulnerability can lead to data breaches, financial losses, and irreparable damage to your reputation.

The Cost of Ignoring Security

Consider these statistics:

  • The average cost of a data breach is $4.45 million (IBM, 2023)
  • 43% of cyber attacks target small businesses
  • It takes an average of 277 days to identify and contain a breach

OWASP Top 10: Your Security Foundation

The OWASP Top 10 represents the most critical security risks to web applications:

1. Broken Access Control

Test for:

  • Unauthorized access to other users' data
  • Privilege escalation vulnerabilities
  • Missing access controls on API endpoints
  • Direct object reference vulnerabilities

2. Cryptographic Failures

Test for:

  • Sensitive data transmitted without encryption
  • Weak encryption algorithms
  • Improper key management
  • Missing HTTPS enforcement

3. Injection

Test for:

  • SQL injection in all input fields
  • NoSQL injection vulnerabilities
  • Command injection possibilities
  • LDAP injection risks

4. Insecure Design

Test for:

  • Missing rate limiting
  • Inadequate input validation
  • Business logic flaws
  • Missing security controls in workflows

5. Security Misconfiguration

Test for:

  • Default credentials
  • Unnecessary features enabled
  • Overly permissive CORS policies
  • Detailed error messages exposing sensitive info

6. Vulnerable Components

Test for:

  • Outdated dependencies with known vulnerabilities
  • Unpatched frameworks and libraries
  • End-of-life software components

7. Authentication Failures

Test for:

  • Weak password policies
  • Missing multi-factor authentication
  • Session fixation vulnerabilities
  • Credential stuffing susceptibility

8. Data Integrity Failures

Test for:

  • Insecure deserialization
  • Missing integrity checks on updates
  • CI/CD pipeline security

9. Security Logging Failures

Test for:

  • Insufficient logging of security events
  • Missing alerting mechanisms
  • Log injection vulnerabilities

10. Server-Side Request Forgery (SSRF)

Test for:

  • URL validation bypasses
  • Internal network access via SSRF
  • Cloud metadata exposure

Beyond OWASP: Additional Security Tests

API Security

  • Authentication token validation
  • Rate limiting and throttling
  • Input validation on all endpoints
  • Proper error handling

File Upload Security

  • File type validation
  • Malware scanning
  • Storage location security
  • Filename sanitization

Session Management

  • Secure session token generation
  • Proper session expiration
  • Session invalidation on logout
  • Cookie security flags (HttpOnly, Secure, SameSite)

Security Testing Tools

At AssureLogix, we use a combination of tools:

  • SAST (Static Analysis): Code review for vulnerabilities
  • DAST (Dynamic Analysis): Runtime vulnerability scanning
  • Penetration Testing: Manual expert testing
  • Dependency Scanning: Identifying vulnerable libraries

Building a Security-First Culture

Security testing is most effective when it's part of your development culture:

  • Train developers on secure coding practices
  • Integrate security testing into CI/CD
  • Conduct regular security reviews
  • Establish a responsible disclosure program

Conclusion

Security testing is an ongoing process, not a one-time event. Regular testing, combined with a security-first mindset, is your best defense against cyber threats.

Worried about your application's security? Contact AssureLogix for a comprehensive security assessment.

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