Hans Wagner

Identify security vulnerabilities before hackers do with ethical hacking testing your web application's defenses. This penetration testing engagement includes: scoping consultation defining testing scope, rules of engagement, IP addresses, and off-limits areas, reconnaissance and footprinting gathering information about target using OSINT and passive techniques, and test plan documentation outlining testing methodology, tools, and timeline. Vulnerability assessment includes: automated scanning using tools like Burp Suite, OWASP ZAP, or Nessus identifying common vulnerabilities, manual testing performing hands-on testing of business logic, authentication, and authorization flows, and attack surface mapping documenting all entry points (forms, APIs, file uploads, parameters) for testing. Authentication and session management testing includes: brute force attempts testing login forms for rate limiting and account lockout protection, credential stuffing trying leaked credentials from data breaches checking password reuse, session hijacking attempting to steal or predict session tokens, session timeout verifying sessions expire after inactivity preventing unauthorized access, and password reset flaws testing forgot password flow for account takeover vulnerabilities. Authorization and access control testing includes: privilege escalation attempting to access higher-privilege functions from low-privilege account, insecure direct object references accessing other users' data by manipulating IDs in URLs or requests, forced browsing accessing restricted pages by guessing URLs, horizontal privilege escalation accessing resources of same privilege level but different user, and vertical privilege escalation gaining admin access from user account. Input validation testing includes: SQL injection attempting to inject SQL commands into input fields accessing or modifying database, cross-site scripting (XSS) injecting JavaScript to steal cookies or perform actions on behalf of user, command injection executing system commands through vulnerable inputs, XML/XXE injection exploiting XML parsers to read files or conduct SSRF attacks, and LDAP/NoSQL injection testing non-SQL data stores for injection vulnerabilities. Business logic testing includes: workflow bypass circumventing intended process flows (e.g., skipping payment step), race conditions exploiting timing issues in concurrent requests, price manipulation modifying prices or quantities in shopping cart, account enumeration determining valid usernames or email addresses, and function abuse misusing legitimate features for unintended purposes. File upload vulnerabilities includes: malicious file upload attempting to upload web shells or executable files, file type validation bypass circumventing file type restrictions using content-type spoofing or extension tricks, path traversal uploading files to arbitrary locations potentially overwriting critical files, and file size limits testing for DoS via large file uploads. API security testing includes: REST API testing examining authentication, authorization, and input validation in API endpoints, GraphQL introspection exploiting exposed schema discovering hidden fields or queries, API rate limiting testing for absence of throttling enabling scraping or DoS, mass assignment modifying object properties not intended to be user-editable, and API versioning testing deprecated or legacy API versions for weaknesses. Client-side vulnerabilities includes: DOM-based XSS exploiting JavaScript vulnerabilities in client-side code, cross-site request forgery (CSRF) forcing user to execute unwanted actions, clickjacking tricking users into clicking hidden elements, open redirect exploiting URL redirects for phishing, and HTML5 security testing local storage, postMessage, CORS for security issues. Cryptography testing includes: weak encryption identifying use of outdated algorithms (MD5, SHA1, DES), SSL/TLS configuration testing for weak ciphers, certificate issues, or protocol vulnerabilities, sensitive data exposure checking for passwords, tokens, or PII in responses or logs, and insecure random numbers testing random number generation for predictability. Infrastructure testing includes: server misconfiguration identifying unnecessary services, default credentials, or information disclosure, HTTP security headers checking for CSP, HSTS, X-Frame-Options implementation, web server vulnerabilities testing Apache, Nginx, IIS for known exploits, and container/cloud misconfig if applicable, testing Docker, Kubernetes, or cloud services for security gaps. OWASP Top 10 coverage includes: injection flaws SQL, command, LDAP, XPath injection testing, broken authentication session management, MFA, credential storage weaknesses, sensitive data exposure encryption, HTTPS, data protection verification, XML external entities XXE attacks against XML parsers, broken access control authorization and privilege escalation, security misconfiguration server, application, database configuration review, XSS reflected, stored, DOM-based cross-site scripting, insecure deserialization exploiting object serialization for RCE, using components with vulnerabilities outdated libraries and dependencies, and insufficient logging monitoring detection and response capabilities. Social engineering (optional) includes: phishing simulation testing employee susceptibility to phishing emails, pretexting attempting to extract information via impersonation, physical security if onsite, testing badge access, tailgating, or dumpster diving. Reporting includes: executive summary high-level overview of findings and business risk for non-technical stakeholders, technical findings detailed vulnerability descriptions with evidence (screenshots, request/response), severity ratings CVSS scoring and priority classification (Critical, High, Medium, Low), remediation guidance specific recommendations for fixing each vulnerability with code examples if applicable, and compliance mapping relating findings to PCI DSS, HIPAA, SOC 2, or other relevant frameworks. Remediation support includes: developer consultation call discussing findings with development team answering questions, re-test after fixes verifying vulnerabilities properly remediated within 30-60 days, and code review if requested, reviewing patches before deployment ensuring fixes don't introduce new issues. Deliverables includes: penetration test report comprehensive document with findings, evidence, and remediation steps, vulnerability database export findings in CSV or JSON for import into tracking systems, proof-of-concept code sanitized exploits demonstrating vulnerabilities for developers, and security certificate letter attesting testing completed and security posture if clean. Compliance and ethics includes: authorized testing performing all activities with written permission and defined scope, responsible disclosure privately reporting findings following coordinated vulnerability disclosure, data protection not extracting or retaining sensitive customer data discovered, and legal compliance following CFAA, GDPR, and other applicable laws. Perfect for SaaS companies preparing for security audits or certifications (SOC 2, ISO 27001), fintech applications handling financial data requiring PCI DSS compliance, healthcare apps processing PHI needing HIPAA security validation, and enterprises conducting annual security assessments or pre-acquisition due diligence.