Vulnerable sample for Action test

[souro1212]

This PR intentionally adds risky patterns for testing ai-secure-code-review-action.

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📥 Commits

Reviewing files that changed from the base of the PR and between 252c054 and fe38216.

📒 Files selected for processing (1)

• app.py (1 hunks)

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
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• Commit unit tests in branch feat/vuln-demo

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[github-actions]

🔐 Secure Code Review (AI)

Risk Summary: High (3), Medium (1)

1. Finding: Command Injection

   • Why it matters: The use of os.system with unsanitized input allows an attacker to execute arbitrary commands on the server, leading to potential system compromise.
   • Evidence (diff lines):

     os.system(f"echo Hello {name}")

   • Fix (concrete): Replace os.system with a safer alternative, such as using a logging mechanism or sanitizing the input. For example:

     return f"Hello {name}"

2. Finding: Hardcoded API Key

   • Why it matters: Storing sensitive information like API keys directly in the code can lead to exposure if the code is shared or leaked, allowing unauthorized access to services.
   • Evidence (diff lines):

     API_KEY = "sk-test-123456"

   • Fix (concrete): Use environment variables to store sensitive information. For example:

     API_KEY = os.getenv("API_KEY")

3. Finding: Lack of Input Validation

   • Why it matters: The name parameter is taken directly from user input without validation, which could lead to unexpected behavior or security issues.
   • Evidence (diff lines):

     name = request.args.get("name", "world")

   • Fix (concrete): Implement input validation to ensure name only contains expected characters (e.g., alphanumeric). For example:

     import re
     name = request.args.get("name", "world")
     if not re.match("^[a-zA-Z0-9_]*$", name):
         name = "world"

Safeguards Checklist:

• [Fail] Command injection prevention
• [Fail] Sensitive data exposure (API key)
• [Fail] Input validation

This diff is small and focused, but it introduces significant security risks that need to be addressed before deployment.

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Models can make mistakes. Verify before merging.

[secure-code-warrior-for-github]

Micro-Learning Topic: OS command injection (Detected by phrase)

Matched on "Command Injection"

What is this? (2min video)

In many situations, applications will rely on OS provided functions, scripts, macros and utilities instead of reimplementing them in code. While functions would typically be accessed through a native interface library, the remaining three OS provided features will normally be invoked via the command line or launched as a process. If unsafe inputs are used to construct commands or arguments, it may allow arbitrary OS operations to be performed that can compromise the server.

Try a challenge in Secure Code Warrior

Helpful references

• OWASP Command Injection - OWASP community page with comprehensive information about command injection, and links to various OWASP resources to help detect or prevent it.
• OWASP testing for Command Injection - This article is focused on providing testing techniques for identifying command injection flaws in your applications

Micro-Learning Topic: Hard-coded API key (Detected by phrase)

Matched on "Hardcoded API Key"

What is this? (2min video)

Poor or missing authentication/authorization schemes allow an adversary to anonymously execute functionality within the mobile app or backend server used by the mobile app. Weaker authentication for mobile apps is fairly prevalent due to a mobile device's input form factor. To detect poor authentication schemes, testers can perform binary attacks against the mobile app while it is in 'offline' mode. Through the attack, the tester will force the app to bypass offline authentication and then execute functionality that should require offline authentication. To test for poor authorization schemes, testers can perform binary attacks against the mobile app and try to execute privileged functionality that should only be executable with a user of higher privilege while the mobile app is in 'offline' mode.

This kind of vulnerability occurs when the app uses a hardcoded API key to communicate to the server. It is possible for an attacker to use the API key and make direct calls to the server.

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Micro-Learning Topic: Sensitive information exposure (Detected by phrase)

Matched on "Sensitive data exposure"

What is this? (2min video)

Displaying too much information without proper access-control can lead to sensitive data being revealed that could be of value to an attacker directly or useful in a subsequent attack.

Try a challenge in Secure Code Warrior

Helpful references

• OWASP Top Ten 2017 A3: Sensitive Data Exposure - OWASP Top Ten articles provide basic techniques to protect against these high risk problem areas, and guidance on where to go next.
• OWASP Top Ten Proactive Controls 2018 C8: Protect Data Everywhere - Article on encryption as a technique for ensuring that sensitive data can only be accessed or modified by authorised users and systems.
• OWASP Top Ten 2021 A02: Cryptographic Failures - OWASP Top Ten articles provide basic techniques to protect against these high risk problem areas, and guidance on where to go next.