compare to semgrep #64
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WalkthroughThe pull request introduces changes to a GitHub Actions workflow and a new Flask application. The workflow configuration has been updated to use Semgrep for security checks, replacing the previous DAST testing approach. The Changes
Sequence DiagramsequenceDiagram
participant Client
participant Flask App
participant SQLite DB
Client->>Flask App: GET /users?name=example
Flask App->>SQLite DB: Query user details
SQLite DB-->>Flask App: Return user data
Flask App->>Client: Send user information
Client->>Flask App: GET /.env
Flask App-->>Client: Download environment variables
Poem
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Actionable comments posted: 5
🧹 Nitpick comments (1)
.github/workflows/dast.yml (1)
14-21: Good selection of security rulesThe Semgrep configuration includes a comprehensive set of security rules. Consider adding
p/flaskfor Flask-specific security checks.SEMGREP_RULES: >- p/security-audit p/owasp-top-ten p/javascript p/python + p/flask
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📒 Files selected for processing (2)
.github/workflows/dast.yml(1 hunks)app.py(1 hunks)
🧰 Additional context used
🪛 GitHub Actions: Security Checks
app.py
[error] 27-33: SQL Injection vulnerability detected: User-controlled data from request is passed to 'execute()' through raw string concatenation. Use django's QuerySets with parameterized queries instead.
[error] 32-32: Tainted SQL string: User input is used to manually construct a SQL query, risking SQL injection. Use parameterized queries or an ORM instead.
[error] 67-67: Security risk: Flask app running with host='0.0.0.0' could expose the server publicly.
[error] 67-67: Debug mode enabled: Flask app running with debug=True, which can leak sensitive information. This should not be used in production.
| def get_env(): | ||
| env_content = """ | ||
| DB_NAME=crapi | ||
| DB_USER=crapi | ||
| DB_PASSWORD=crapi | ||
| DB_HOST=postgresdb | ||
| DB_PORT=5432 | ||
| SERVER_PORT=8080 | ||
| MONGO_DB_HOST=mongodb | ||
| MONGO_DB_PORT=27017 | ||
| MONGO_DB_USER=crapi | ||
| MONGO_DB_PASSWORD=crapi | ||
| MONGO_DB_NAME=crapi | ||
| """ | ||
| return Response(env_content, headers={ | ||
| "Content-Disposition": "attachment; filename=env" | ||
| }) |
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CRITICAL: Remove endpoint exposing sensitive configuration
The /.env endpoint exposes sensitive database credentials and configuration. This is a severe security risk that could lead to unauthorized database access.
This entire endpoint should be removed immediately. Environment variables should be securely managed through proper configuration management systems, not exposed via API endpoints.
| # Vulnerable SQL Query from raw string concatenation | ||
| query = f"SELECT * FROM users WHERE name = '{name}'" | ||
| cursor.execute(query) |
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CRITICAL: Fix SQL injection vulnerability immediately
The current implementation is vulnerable to SQL injection attacks. The commented-out parameterized query must be used instead.
- # Vulnerable SQL Query from raw string concatenation
- query = f"SELECT * FROM users WHERE name = '{name}'"
- cursor.execute(query)
+ # Safe SQL Query using parameterized queries
+ query = "SELECT * FROM users WHERE name = ?"
+ cursor.execute(query, (name,))📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| # Vulnerable SQL Query from raw string concatenation | |
| query = f"SELECT * FROM users WHERE name = '{name}'" | |
| cursor.execute(query) | |
| # Safe SQL Query using parameterized queries | |
| query = "SELECT * FROM users WHERE name = ?" | |
| cursor.execute(query, (name,)) |
🧰 Tools
🪛 GitHub Actions: Security Checks
[error] 27-33: SQL Injection vulnerability detected: User-controlled data from request is passed to 'execute()' through raw string concatenation. Use django's QuerySets with parameterized queries instead.
[error] 32-32: Tainted SQL string: User input is used to manually construct a SQL query, risking SQL injection. Use parameterized queries or an ORM instead.
| def get_db_connection(): | ||
| conn = sqlite3.connect(DATABASE) | ||
| return conn |
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🛠️ Refactor suggestion
Add error handling to database connection
The database connection lacks error handling which could lead to unhandled exceptions.
def get_db_connection():
- conn = sqlite3.connect(DATABASE)
- return conn
+ try:
+ conn = sqlite3.connect(DATABASE)
+ return conn
+ except sqlite3.Error as e:
+ app.logger.error(f"Database connection error: {e}")
+ raiseCommittable suggestion skipped: line range outside the PR's diff.
| # Database file | ||
| DATABASE = 'app.db' |
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🛠️ Refactor suggestion
Consider making the database path configurable and secure
Hardcoding the database path could pose security risks. Consider:
- Making it configurable via environment variables
- Ensuring proper file permissions
- Using absolute paths to prevent path traversal
-# Database file
-DATABASE = 'app.db'
+# Database file - configured via environment
+DATABASE = os.getenv('DATABASE_PATH', os.path.join(os.path.dirname(__file__), 'app.db'))Committable suggestion skipped: line range outside the PR's diff.
| if __name__ == '__main__': | ||
| init_db() # Initialize the database and populate it | ||
| app.run(host="0.0.0.0", debug=True) |
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CRITICAL: Fix insecure deployment settings
Multiple security issues in the application startup:
- Debug mode is enabled, which can leak sensitive information
- Application is listening on all interfaces (0.0.0.0)
if __name__ == '__main__':
init_db() # Initialize the database and populate it
- app.run(host="0.0.0.0", debug=True)
+ debug_mode = os.getenv('FLASK_DEBUG', 'False').lower() == 'true'
+ app.run(host="127.0.0.1", debug=debug_mode)Committable suggestion skipped: line range outside the PR's diff.
🧰 Tools
🪛 GitHub Actions: Security Checks
[error] 67-67: Security risk: Flask app running with host='0.0.0.0' could expose the server publicly.
[error] 67-67: Debug mode enabled: Flask app running with debug=True, which can leak sensitive information. This should not be used in production.
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Summary by CodeRabbit
New Features
Security Checks
Potential Security Concerns