Rodin
5b9f30e663
High-priority patterns from completeness review: - ssrf.md: metadata endpoints, DNS rebinding, webhook validation - race-conditions.md: TOCTOU, atomic operations, file/db races - jwt-security.md: algorithm confusion, kid injection, refresh tokens Now 16 patterns covering comprehensive web application security.
74 lines
3.2 KiB
Markdown
74 lines
3.2 KiB
Markdown
# Security Patterns
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Scannable patterns for security code review. Each file has:
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- **Rule** — what to do
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- **Correct Pattern** — code that works (Python)
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- **Incorrect Pattern** — common mistakes
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- **Edge Cases** — gotchas
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Based on OWASP Top 10:2025 and recent security research.
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## Patterns
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### Fundamentals
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| File | Topic | OWASP 2025 |
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|------|-------|------------|
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| [secure-defaults.md](secure-defaults.md) | Fail closed, deny by default, defense in depth | A06 |
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| [input-validation.md](input-validation.md) | Allowlist > blocklist, validate at boundaries | A03 |
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| [credential-handling.md](credential-handling.md) | No hardcoded secrets, environment/secret manager | — |
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| [audit-logging.md](audit-logging.md) | What to log, what not to log | A09 |
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| [error-handling.md](error-handling.md) | Fail closed, no sensitive info in errors | A10 |
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### Identity
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| File | Topic | OWASP 2025 |
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|------|-------|------------|
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| [authentication.md](authentication.md) | Passwords, tokens, MFA, brute force protection | A07 |
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| [authorization.md](authorization.md) | Permission checks, IDOR prevention, privilege escalation | A01 |
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| [jwt-security.md](jwt-security.md) | Algorithm confusion, weak secrets, expiration | A07 |
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### Attack Prevention
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| File | Topic | OWASP 2025 |
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|------|-------|------------|
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| [injection-prevention.md](injection-prevention.md) | SQL, command, template, path traversal | A05 |
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| [ssrf.md](ssrf.md) | Server-side request forgery, metadata endpoints | A10 |
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| [dos-prevention.md](dos-prevention.md) | Rate limiting, resource bounds, algorithmic complexity | — |
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| [prompt-injection.md](prompt-injection.md) | LLM security, data/instruction separation | — |
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| [deserialization.md](deserialization.md) | Untrusted data deserialization, pickle, yaml | A08 |
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| [race-conditions.md](race-conditions.md) | TOCTOU, atomic check-and-act, database locks | — |
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### Infrastructure
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| File | Topic | OWASP 2025 |
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|------|-------|------------|
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| [supply-chain.md](supply-chain.md) | SBOM, dependency scanning, signed packages | A03 |
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| [cryptography.md](cryptography.md) | Strong algorithms, key management, TLS | A04 |
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## OWASP Top 10:2025 Coverage
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| # | Category | Pattern |
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|---|----------|---------|
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| A01 | Broken Access Control | authorization.md |
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| A02 | Security Misconfiguration | secure-defaults.md |
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| A03 | Software Supply Chain Failures | supply-chain.md |
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| A04 | Cryptographic Failures | cryptography.md |
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| A05 | Injection | injection-prevention.md |
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| A06 | Insecure Design | secure-defaults.md |
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| A07 | Authentication Failures | authentication.md, jwt-security.md |
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| A08 | Software or Data Integrity Failures | deserialization.md |
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| A09 | Security Logging and Alerting Failures | audit-logging.md |
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| A10 | Mishandling of Exceptional Conditions | error-handling.md, ssrf.md |
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## Sources
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- [OWASP Top 10:2025](https://owasp.org/Top10/2025/)
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- [OWASP Cheat Sheet Series](https://cheatsheetseries.owasp.org/)
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- [OWASP LLM Top 10](https://owasp.org/www-project-top-10-for-large-language-model-applications/)
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- [CWE (Common Weakness Enumeration)](https://cwe.mitre.org/)
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## Usage
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Reference these patterns when building or reviewing systems. Code examples are in Python for universal model comprehension; concepts apply to any language.
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