---
test_name: python-security-code-review
domain: Software Engineering
mode: standard
runtime: ~100s
method: AgenticMail Call Agent
output_format: Structured JSON
---

# Python Security Code Review

**Mode:** `standard` — full tool access, web search available, trimmed context.

## Result

```json
{
  "status": "completed",
  "task_id": "python-security-code-review",
  "mode": "standard",
  "result": {
    "summary": {
      "total_issues": 9,
      "by_severity": {
        "critical": 4,
        "high": 2,
        "medium": 2,
        "low": 1
      },
      "overall_risk": "HIGH — application is vulnerable to multiple attack vectors including SQL injection and path traversal"
    },
    "issues": [
      {
        "id": 1,
        "title": "SQL Injection in authenticate()",
        "severity": "critical",
        "line": 15,
        "description": "User input directly interpolated into SQL query via f-string. Allows full database compromise.",
        "cwe": "CWE-89",
        "fix": "Use parameterized queries with ? placeholders"
      },
      {
        "id": 2,
        "title": "SQL Injection in get_user_data()",
        "severity": "critical",
        "line": 28,
        "description": "Same f-string SQL pattern as authenticate(). Enables data extraction/deletion.",
        "cwe": "CWE-89",
        "fix": "Use parameterized queries with ? placeholders"
      },
      {
        "id": 3,
        "title": "Weak Password Hashing (MD5)",
        "severity": "critical",
        "line": 12,
        "description": "MD5 is cryptographically broken. No salting. Rainbow tables can reverse hashes trivially.",
        "cwe": "CWE-328",
        "fix": "Use bcrypt or argon2 with per-user salts"
      },
      {
        "id": 4,
        "title": "Path Traversal in upload_file()",
        "severity": "critical",
        "line": 42,
        "description": "Filename from user input used directly in file path. Attacker can write to arbitrary locations.",
        "cwe": "CWE-22",
        "fix": "Use secure_filename() and validate against allowed directory"
      },
      {
        "id": 5,
        "title": "Missing Authentication on Admin Endpoint",
        "severity": "high",
        "line": 55,
        "description": "Admin route lacks any authentication or authorization check.",
        "cwe": "CWE-306",
        "fix": "Add authentication decorator and role-based access control"
      },
      {
        "id": 6,
        "title": "Sensitive Data in Error Messages",
        "severity": "high",
        "line": 33,
        "description": "Stack traces and database errors exposed to client in HTTP responses.",
        "cwe": "CWE-209",
        "fix": "Return generic error messages; log details server-side"
      },
      {
        "id": 7,
        "title": "Hardcoded Secret Key",
        "severity": "medium",
        "line": 5,
        "description": "SECRET_KEY hardcoded in source. Anyone with repo access can forge sessions.",
        "cwe": "CWE-798",
        "fix": "Use environment variables or secret management service"
      },
      {
        "id": 8,
        "title": "No Rate Limiting on Login",
        "severity": "medium",
        "line": 15,
        "description": "Login endpoint allows unlimited attempts. Vulnerable to brute force.",
        "cwe": "CWE-307",
        "fix": "Implement rate limiting (e.g., flask-limiter) with exponential backoff"
      },
      {
        "id": 9,
        "title": "Debug Mode Enabled",
        "severity": "low",
        "line": 68,
        "description": "Flask debug=True in production enables interactive debugger with code execution.",
        "cwe": "CWE-489",
        "fix": "Set debug=False and use environment-based configuration"
      }
    ],
    "corrected_code": "import os\nimport bcrypt\nimport sqlite3\nfrom flask import Flask, request, jsonify, session\nfrom werkzeug.utils import secure_filename\nfrom functools import wraps\nimport logging\n\napp = Flask(__name__)\napp.secret_key = os.environ.get('SECRET_KEY', os.urandom(32))\n\nlogger = logging.getLogger(__name__)\n\ndef require_auth(f):\n    @wraps(f)\n    def decorated(*args, **kwargs):\n        if 'user_id' not in session:\n            return jsonify({'error': 'Authentication required'}), 401\n        return f(*args, **kwargs)\n    return decorated\n\ndef require_admin(f):\n    @wraps(f)\n    def decorated(*args, **kwargs):\n        if session.get('role') != 'admin':\n            return jsonify({'error': 'Admin access required'}), 403\n        return f(*args, **kwargs)\n    return decorated\n\ndef get_db():\n    conn = sqlite3.connect('app.db')\n    conn.row_factory = sqlite3.Row\n    return conn\n\n@app.route('/login', methods=['POST'])\ndef authenticate():\n    username = request.form.get('username', '')\n    password = request.form.get('password', '')\n    db = get_db()\n    try:\n        user = db.execute('SELECT * FROM users WHERE username = ?', (username,)).fetchone()\n        if user and bcrypt.checkpw(password.encode(), user['password_hash']):\n            session['user_id'] = user['id']\n            session['role'] = user['role']\n            return jsonify({'status': 'authenticated'})\n        return jsonify({'error': 'Invalid credentials'}), 401\n    except Exception as e:\n        logger.error(f'Login error: {e}')\n        return jsonify({'error': 'An error occurred'}), 500\n    finally:\n        db.close()\n\n@app.route('/user/<int:user_id>')\n@require_auth\ndef get_user_data(user_id):\n    db = get_db()\n    try:\n        user = db.execute('SELECT id, username, email FROM users WHERE id = ?', (user_id,)).fetchone()\n        if user:\n            return jsonify(dict(user))\n        return jsonify({'error': 'Not found'}), 404\n    except Exception as e:\n        logger.error(f'User lookup error: {e}')\n        return jsonify({'error': 'An error occurred'}), 500\n    finally:\n        db.close()\n\nUPLOAD_DIR = os.path.join(os.path.dirname(__file__), 'uploads')\nALLOWED_EXTENSIONS = {'.jpg', '.png', '.pdf', '.txt'}\n\n@app.route('/upload', methods=['POST'])\n@require_auth\ndef upload_file():\n    file = request.files.get('file')\n    if not file:\n        return jsonify({'error': 'No file provided'}), 400\n    filename = secure_filename(file.filename)\n    ext = os.path.splitext(filename)[1].lower()\n    if ext not in ALLOWED_EXTENSIONS:\n        return jsonify({'error': 'File type not allowed'}), 400\n    filepath = os.path.join(UPLOAD_DIR, filename)\n    if not os.path.abspath(filepath).startswith(os.path.abspath(UPLOAD_DIR)):\n        return jsonify({'error': 'Invalid path'}), 400\n    file.save(filepath)\n    return jsonify({'status': 'uploaded', 'filename': filename})\n\n@app.route('/admin')\n@require_auth\n@require_admin\ndef admin_panel():\n    return jsonify({'status': 'admin panel', 'message': 'Authorized'})\n\nif __name__ == '__main__':\n    app.run(debug=os.environ.get('FLASK_DEBUG', 'false').lower() == 'true')",
    "recommendations": [
      "Add CSRF protection (flask-wtf)",
      "Implement session timeout",
      "Add Content-Security-Policy headers",
      "Set up automated dependency scanning (Dependabot/Snyk)",
      "Enable HTTPS-only with HSTS"
    ]
  },
  "runtime_seconds": 100,
  "tokens_used": 4200
}
```

## Notes

- Call Agent in `standard` mode produced a comprehensive 9-issue security audit with full corrected code
- All output is structured JSON — machine-parseable and composable
- This disproves the v2 assumption that Call Agent can only do shallow data retrieval
- The corrected code includes authentication decorators, parameterized queries, bcrypt hashing, and secure file handling
