# Bandit Test to CWE and OWASP Mapping

Complete mapping between Bandit test IDs, Common Weakness Enumeration (CWE), and OWASP Top 10 2021 categories.

## Table of Contents

- [Cryptographic Issues](#cryptographic-issues)
- [Injection Vulnerabilities](#injection-vulnerabilities)
- [Security Misconfiguration](#security-misconfiguration)
- [Insecure Deserialization](#insecure-deserialization)
- [Access Control Issues](#access-control-issues)

## Cryptographic Issues

### OWASP A02:2021 - Cryptographic Failures

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B302 | Use of insecure MD2, MD4, MD5, or SHA1 hash function | CWE-327 | MEDIUM |
| B303 | Use of insecure MD2, MD4, or MD5 hash function | CWE-327 | MEDIUM |
| B304 | Use of insecure MD2, MD4, MD5, or SHA1 hash function | CWE-327 | MEDIUM |
| B305 | Use of insecure cipher mode | CWE-327 | MEDIUM |
| B306 | Use of insecure and deprecated function (mktemp) | CWE-377 | MEDIUM |
| B307 | Use of possibly insecure function (eval) | CWE-78 | MEDIUM |
| B311 | Standard pseudo-random generators are not suitable for security | CWE-330 | LOW |
| B323 | Unverified context with insecure default | CWE-327 | MEDIUM |
| B324 | Use of insecure hash functions in hashlib | CWE-327 | HIGH |
| B401 | Use of insecure telnet protocol | CWE-319 | HIGH |
| B402 | Use of insecure FTP protocol | CWE-319 | HIGH |
| B403 | Use of insecure pickle import | CWE-502 | LOW |
| B404 | Use of insecure subprocess import | CWE-78 | LOW |
| B413 | Use of pycrypto | CWE-327 | HIGH |
| B501 | Use of weak cryptographic key | CWE-326 | HIGH |
| B502 | Use of weak SSL/TLS protocol | CWE-327 | HIGH |
| B503 | Use of insecure SSL/TLS cipher | CWE-327 | MEDIUM |
| B504 | SSL with no version specified | CWE-327 | LOW |
| B505 | Use of weak cryptographic hash | CWE-327 | MEDIUM |

**Remediation Strategy**: Replace weak cryptographic algorithms with strong alternatives. Use SHA-256 or SHA-512 for hashing, AES-256 for encryption, and TLS 1.2+ for transport security. For password hashing, use bcrypt, scrypt, or Argon2.

## Injection Vulnerabilities

### OWASP A03:2021 - Injection

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B308 | Use of mark_safe | CWE-80 | MEDIUM |
| B313 | XML bad element tree | CWE-611 | MEDIUM |
| B314 | XML bad element tree (lxml) | CWE-611 | MEDIUM |
| B315 | XML bad element tree (expat) | CWE-611 | MEDIUM |
| B316 | XML bad element tree (sax) | CWE-611 | MEDIUM |
| B317 | XML bad element tree (expatreader) | CWE-611 | MEDIUM |
| B318 | XML bad element tree (expatbuilder) | CWE-611 | MEDIUM |
| B319 | XML bad element tree (xmlrpc) | CWE-611 | HIGH |
| B320 | XML bad element tree (pulldom) | CWE-611 | HIGH |
| B321 | FTP-related functions are being called | CWE-319 | HIGH |
| B405 | XML mini DOM import | CWE-611 | LOW |
| B406 | XML etree import | CWE-611 | LOW |
| B407 | XML expat import | CWE-611 | LOW |
| B408 | XML minidom import | CWE-611 | LOW |
| B410 | XML etree import (lxml) | CWE-611 | LOW |
| B411 | XML standard library imports | CWE-611 | LOW |
| B412 | Deprecated httpoxy vulnerability | CWE-807 | LOW |
| B601 | Paramiko call with shell=True | CWE-78 | HIGH |
| B602 | subprocess call with shell=True | CWE-78 | HIGH |
| B603 | subprocess without shell=True | CWE-78 | LOW |
| B604 | Function call with shell=True | CWE-78 | HIGH |
| B605 | Starting a process with a shell | CWE-78 | HIGH |
| B606 | Starting a process without shell | CWE-78 | LOW |
| B607 | Starting a process with a partial path | CWE-78 | LOW |
| B608 | Possible SQL injection vector through string formatting | CWE-89 | MEDIUM |
| B609 | Use of wildcard injection | CWE-78 | MEDIUM |
| B610 | Potential SQL injection via Django raw SQL | CWE-89 | MEDIUM |
| B611 | Potential SQL injection via Django extra | CWE-89 | MEDIUM |

**Remediation Strategy**: Never concatenate user input into commands, queries, or markup. Use parameterized queries for SQL, safe XML parsers with DTD processing disabled, and avoid `shell=True` in subprocess calls. Use `shlex.split()` for argument parsing.

## Security Misconfiguration

### OWASP A05:2021 - Security Misconfiguration

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B201 | Flask app run with debug=True | CWE-489 | HIGH |
| B310 | Audit URL open for permitted schemes | CWE-939 | MEDIUM |
| B506 | Test for use of yaml load | CWE-20 | MEDIUM |
| B507 | SSH with no host key verification | CWE-295 | MEDIUM |
| B701 | jinja2 autoescape false | CWE-94 | HIGH |
| B702 | Test for use of mako templates | CWE-94 | MEDIUM |
| B703 | Django autoescape false | CWE-94 | MEDIUM |

**Remediation Strategy**: Disable debug mode in production, validate and sanitize all inputs, enable autoescape in template engines, use safe YAML loaders (`yaml.safe_load()`), and enforce strict host key verification for SSH connections.

## Insecure Deserialization

### OWASP A08:2021 - Software and Data Integrity Failures

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B301 | Pickle and modules that wrap it can be unsafe | CWE-502 | MEDIUM |

**Remediation Strategy**: Avoid using pickle for untrusted data. Use JSON, MessagePack, or Protocol Buffers with strict schema validation. If pickle is necessary, implement cryptographic signing and validation of serialized data.

## Access Control Issues

### OWASP A01:2021 - Broken Access Control

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B506 | Test for use of yaml load (arbitrary code execution) | CWE-20 | MEDIUM |

**Remediation Strategy**: Use `yaml.safe_load()` instead of `yaml.load()` to prevent arbitrary code execution. Implement proper access controls and input validation for all YAML processing.

## Hardcoded Credentials

### OWASP A02:2021 - Cryptographic Failures

| Test ID | Description | CWE | Severity |
|---------|-------------|-----|----------|
| B105 | Possible hardcoded password string | CWE-259 | LOW |
| B106 | Possible hardcoded password function argument | CWE-259 | LOW |
| B107 | Possible hardcoded password default argument | CWE-259 | LOW |

**Remediation Strategy**: Never hardcode credentials. Use environment variables, secret management services (HashiCorp Vault, AWS Secrets Manager), or encrypted configuration files with proper key management.

## Priority Matrix

Use this matrix to prioritize remediation efforts:

| Priority | Criteria | Action |
|----------|----------|--------|
| **CRITICAL** | HIGH Severity + HIGH Confidence | Immediate remediation required |
| **HIGH** | HIGH Severity OR MEDIUM Severity + HIGH Confidence | Remediate within 1 sprint |
| **MEDIUM** | MEDIUM Severity + MEDIUM Confidence | Remediate within 2 sprints |
| **LOW** | LOW Severity OR LOW Confidence | Address during refactoring |
| **INFORMATIONAL** | Review only | Document and monitor |

## OWASP Top 10 2021 Coverage

| OWASP Category | Bandit Coverage | Notes |
|----------------|-----------------|-------|
| A01:2021 Broken Access Control | Partial | Covers YAML deserialization |
| A02:2021 Cryptographic Failures | Excellent | Comprehensive crypto checks |
| A03:2021 Injection | Excellent | SQL, command, XML injection |
| A04:2021 Insecure Design | None | Requires manual review |
| A05:2021 Security Misconfiguration | Good | Debug mode, templating |
| A06:2021 Vulnerable Components | None | Use Safety or pip-audit |
| A07:2021 Authentication Failures | Partial | Hardcoded credentials only |
| A08:2021 Data Integrity Failures | Good | Deserialization issues |
| A09:2021 Security Logging Failures | None | Requires manual review |
| A10:2021 SSRF | Partial | URL scheme validation |

## References

- [OWASP Top 10 2021](https://owasp.org/Top10/)
- [CWE Database](https://cwe.mitre.org/)
- [Bandit Documentation](https://bandit.readthedocs.io/)