Testing API Security With Owasp Top 10

Testing Api Security With Owasp Top 10

Overview

Cybersecurity skill for testing api security with owasp top 10. Follows industry best practices and security standards.

When to Use

Trigger phrases:

• "testing api security with owasp top 10"

• "Systematically assessing REST and GraphQL API endpoints against the OWASP API Se"

• During authorized API penetration testing engagements

• When assessing REST, GraphQL, or gRPC APIs for security vulnerabilities

• Before deploying new API endpoints to production environments

• When reviewing API security posture against the OWASP API Security Top 10 (2023)

• For validating API gateway security controls and rate limiting effectiveness

When NOT to Use

• When you lack proper authorization for testing
• For production systems without change management
• When the task requires legal or compliance expertise beyond technical scope

Prerequisites

• Authorization: Written scope document covering all API endpoints to be tested
• Burp Suite Professional: For intercepting and modifying API requests
• Postman: For organizing and executing API test collections
• ffuf: For API endpoint and parameter fuzzing
• curl/httpie: Command-line HTTP clients for manual testing
• API documentation: Swagger/OpenAPI spec, GraphQL schema, or API docs
• jq: JSON processor for parsing API responses (apt install jq)

Workflow

# Example: IOC detection
import re

IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    "hash_md5": r"\b[a-f0-9]{32}\b",
    "hash_sha256": r"\b[a-f0-9]{64}\b",
}

def extract_iocs(text: str) -> dict:
    return {k: re.findall(v, text) for k, v in IOC_PATTERNS.items()}

1. Reconnaissance — Gather information about the target related to api security. Identify attack surface.
2. Vulnerability Identification — Enumerate potential api security weaknesses using automated and manual techniques.
3. Exploit Development/Selection — Use owasp top 10 to identify and test api security vulnerabilities.
4. Execution — Execute the api security test in a controlled manner with proper authorization.
5. Post-Exploitation — Document the impact and extent of successful exploitation.
6. Reporting — Write detailed findings with reproduction steps, impact assessment, and remediation guidance.

Tools

• owasp top 10 — Primary tool for this skill
• Vulnerability Scanner — Automated weakness identification
• Exploitation Framework — Controlled exploitation testing
• Reporting Tool — Findings documentation and tracking

Process

1. Reconnaissance — Gather target information, identify attack surface, enumerate services
2. Analysis/Exploitation — Execute the technique, analyze results, document findings
3. Reporting — Document IOCs, write findings, provide remediation recommendations

Verification

• All api security procedures executed completely and documented
• Findings validated against multiple data sources
• False positives identified and filtered
• Results documented with evidence and timestamps
• Recommendations provided with risk-based prioritization

Anti-Rationalization Table