Vulnerable sample for Action test

[souro1212]

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

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between eadf57b and 21a3948.

📒 Files selected for processing (1)

• src/main/java/com/acme/DemoController.java (1 hunks)

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/vuln-demo

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[github-actions]

🔐 Secure Code Review (AI)

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

1. Finding: Potential Class Injection

   • Why it matters: The use of Class.forName(sort) with unvalidated input allows an attacker to control the class name being loaded, which can lead to arbitrary code execution or loading of unintended classes.
   • Evidence (diff lines):

     +    Class<?> clazz = Class.forName(sort);

   • Fix (concrete): Validate the sort parameter against a whitelist of allowed class names before passing it to Class.forName(). For example:

     if (!isValidSortParameter(sort)) {
         throw new IllegalArgumentException("Invalid sort parameter");
     }

2. Finding: Lack of Input Validation

   • Why it matters: The sort parameter is directly accepted from user input without any validation or sanitization, which can lead to injection attacks or unexpected behavior.
   • Evidence (diff lines):

     +  public String items(@RequestParam String sort) throws Exception {

   • Fix (concrete): Implement input validation to ensure that sort only contains expected values (e.g., predefined sort options). For example:

     @RequestParam String sort) {
         if (!isValidSort(sort)) {
             throw new IllegalArgumentException("Invalid sort value");
         }
     }

Safeguards Checklist:

• Input validation: Fail
• Output encoding: N/A
• Error handling: Fail
• Secure coding practices: Fail
• Use of safe libraries/frameworks: Pass

The diff is small and focused, but it introduces significant security risks that need to be addressed immediately.

---

Models can make mistakes. Verify before merging.

[secure-code-warrior-for-github]

Micro-Learning Topic: Injection attack (Detected by phrase)

Matched on "injection attack"

Injection flaws, such as SQL, NoSQL, OS, and LDAP injection, occur when untrusted data is sent to an interpreter as part of a command or query. The attacker’s hostile data can trick the interpreter into executing unintended commands or accessing data without proper authorization. Source: https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project

Try a challenge in Secure Code Warrior

Helpful references

• OWASP Top Ten 2021 A03: Injection - OWASP Top Ten articles provide basic techniques to protect against these high risk problem areas, and guidance on where to go next.
• OWASP Injection Prevention Cheat Sheet in Java - This article is focused on providing clear, simple, actionable guidance for preventing injection flaws in your Java applications.
• OWASP Input Validation Cheat Sheet - This cheatsheet is focused on providing clear, simple, actionable guidance for preventing injection and input validation flaws in your applications.
• OWASP Injection Prevention Cheat Sheet - This article is focused on providing clear, simple, actionable guidance for preventing injection flaws in your applications.
• OWASP Top Ten Proactive Controls 2018 C5: Validate All Inputs - Detailed article on input validation as a programming technique for ensuring that only properly formatted data may enter a software system component.