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name: security-assessment description: Master security assessments with vulnerability scanning, penetration testing, security testing, and security audits.

Security Assessment

Conduct comprehensive security assessments to identify vulnerabilities, test security controls, and improve security posture.

When to Use This Skill

• Pre-release security testing
• Compliance audits
• Vulnerability management
• Security validation
• Third-party assessments
• Incident prevention
• Security baseline
• Continuous monitoring

Core Concepts

1. Vulnerability Assessment

Copy## Vulnerability Scan Report

**Scan Date**: 2024-01-15
**Target**: web.example.com
**Tool**: Nessus

### Critical Vulnerabilities (2)
1. **CVE-2023-XXXXX**: SQL Injection in login form
   - CVSS: 9.8 (Critical)
   - Remediation: Update framework to v2.1.5
   - Priority: P0

2. **CVE-2023-YYYYY**: RCE in file upload
   - CVSS: 9.1 (Critical)
   - Remediation: Implement file type validation
   - Priority: P0

### High Vulnerabilities (5)
3. **Missing Security Headers**
   - Missing: CSP, X-Frame-Options, HSTS
   - CVSS: 7.5
   - Remediation: Configure headers in web server

4. **Weak TLS Configuration**
   - TLS 1.0/1.1 enabled
   - CVSS: 7.4
   - Remediation: Disable old TLS versions

### Remediation Plan
- Week 1: Fix critical issues (1, 2)
- Week 2: Fix high severity (3, 4, 5)
- Week 3: Rescan and verify

2. Security Test Plan

Copy# Security Test Plan: E-Commerce Application

## Scope
- Web application
- API endpoints
- Mobile apps (iOS/Android)

## Test Categories

### Authentication & Session Management
- [ ] Brute force protection
- [ ] Password complexity
- [ ] Session timeout
- [ ] Secure session tokens
- [ ] MFA implementation
- [ ] Password reset security

### Authorization
- [ ] Horizontal privilege escalation
- [ ] Vertical privilege escalation
- [ ] Insecure direct object references
- [ ] Missing function-level access control

### Input Validation
- [ ] SQL injection
- [ ] XSS (reflected, stored, DOM)
- [ ] Command injection
- [ ] Path traversal
- [ ] XXE

### Cryptography
- [ ] Sensitive data encryption (in transit)
- [ ] Sensitive data encryption (at rest)
- [ ] Weak cryptographic algorithms
- [ ] Insecure random number generation

### Business Logic
- [ ] Payment bypass
- [ ] Cart manipulation
- [ ] Price tampering
- [ ] Inventory manipulation

### API Security
- [ ] API authentication
- [ ] Rate limiting
- [ ] Input validation
- [ ] Error handling

## Test Approach
1. Automated scanning (OWASP ZAP)
2. Manual testing (Burp Suite)
3. Code review (key areas)
4. Configuration review

Best Practices

1. Get permission - Authorization before testing
2. Define scope - Clear boundaries
3. Use multiple methods - Automated + manual
4. Document findings - Clear, reproducible
5. Prioritize by risk - CVSS + business impact
6. Verify fixes - Retest after remediation
7. Safe testing - Avoid service disruption
8. Continuous assessment - Regular scanning

Resources

• OWASP Testing Guide: Comprehensive testing methodology
• Burp Suite: Web security testing tool
• OWASP ZAP: Free security scanner