chore: Update main.py

[olunusib]

No description provided.

[github-actions]

GuardAI Output

View Results

Code Security Analysis Results

The provided code snippet contains a few significant security vulnerabilities that could be exploited by an attacker. Below are the identified issues along with suggested enhancements to improve the security posture of this application:

Identified Vulnerabilities:

1. Arbitrary File Read Vulnerability:

   • The read_file function allows the user to input any file path, which means the application can be used to read sensitive files on the system (e.g., /etc/passwd on UNIX-like systems).
   • Potential Impact: Exposure of sensitive information, leading to privacy breaches or further exploitation.

2. Command Injection Vulnerability:

   • The execute_command function uses os.system() to execute user-provided commands. A user could execute any shell command, potentially compromising the system.
   • Potential Impact: An attacker could execute arbitrary commands, causing data loss, data leakage, or system compromise.

3. Hardcoded Credentials:

   • The login function uses hardcoded credentials (username == "admin" and password == "password12"), which is a poor security practice as it exposes the application to credential guessing attacks.
   • Potential Impact: Security breach if the hardcoded credentials are discovered, allowing unauthorized access.

4. Lack of Logging/Monitoring:

   • The application does not implement any form of logging or monitoring for authentication attempts or command executions. This could make it difficult to detect or respond to suspicious activities.

Suggestions for Enhancements:

1. Restrict File Access:

   • Implement validation to restrict file reading to specific directories or file types. For example, only allow the application to read files within a designated directory (e.g., /safe/files/).

   def read_file(filepath):
       safe_directory = '/safe/files/'
       if not filepath.startswith(safe_directory):
           raise ValueError("Access to this file path is not allowed.")
       with open(filepath, "r") as file:
           return file.read()

2. Avoid Command Execution:

   • Instead of allowing arbitrary command execution, consider implementing safer alternatives, or at least restrict command execution to a predefined set of safe commands. If you must use system commands, use subprocess with proper sanitization.

   import subprocess
   
   def execute_command(command):
       allowed_commands = {'dir': 'ls', 'list': 'ls'}
       if command in allowed_commands:
           subprocess.run(allowed_commands[command], shell=True)
       else:
           print("Command not allowed.")

3. Implement Secure Authentication:

   • Remove hardcoded credentials and implement a secure authentication mechanism. Use hashed passwords with salting, along with a database or secure storage solution to manage user credentials.

   import hashlib
   
   def hash_password(password):
       return hashlib.sha256(password.encode()).hexdigest()
       
   # Securely store hashed passwords
   users = {
       'admin': hash_password('password12'),
   }

4. Add Logging and Monitoring:

   • Incorporate logging for authentication attempts and executed commands. Use a logging library to log events and exceptions.

   import logging
   
   logging.basicConfig(level=logging.INFO)
   
   def login(username, password):
       if username in users and users[username] == hash_password(password):
           logging.info(f"User {username} logged in successfully.")
           print("Login successful!")
       else:
           logging.warning(f"Failed login attempt for user {username}.")
           print("Login failed!")

5. Input Validation and Error Handling:

   • Ensure all user inputs are validated and provide proper error handling mechanisms to protect against unexpected inputs.

By addressing these vulnerabilities and implementing the suggested improvements, you can significantly enhance the security posture of the application.