[Vulnerability] Stored Cross site scripting (XSS) on Wireguard Clients function.

[lavie3k]

Detail: The Stored Cross-Site Scripting (XSS) vulnerability in the Wireguard Clients function is a security flaw that allows an attacker to inject malicious code into the Wireguard client interface. This vulnerability occurs when user-supplied input, such as client names or descriptions, is not properly sanitized or validated before being displayed on the Wireguard client interface. As a result, an attacker can craft a malicious payload that, when executed by a victim user, can lead to unauthorized access, data theft, or further exploitation.

For more information on XSS vulnerabilities, you can refer to the following resources:

• OWASP Cross-Site Scripting (XSS) - https://owasp.org/www-community/attacks/xss/
• Burp Suite - XSS Attacks - https://portswigger.net/web-security/cross-site-scripting

Steps to reproduce:

1. User demo has manager permission to log in to the application and access functions Wireguard Clients at Main.

2. Click New client to create wireguard clients with the Name parameter value as <script>alert("Hacked!")</script>. Then press Save.

3. Log in to the admin administrative account and access the Wireguard Clients function at Main. The javascript code will execute. Once the victim user accesses the affected page, the injected payload will be executed, potentially leading to successful exploitation.

Solution: To mitigate the Stored XSS vulnerability in the Wireguard Clients function, it is crucial to implement proper input validation and output sanitization techniques. Here are a few steps that can help address the issue:

• Input validation: Implement strict input validation to ensure that user-supplied data is free from malicious content. This includes validating and sanitizing all user inputs before storing or displaying them.
• Output encoding: Apply appropriate output encoding techniques to ensure that any user-supplied data is displayed as inert content, preventing the execution of malicious scripts.
• Content Security Policy (CSP): Implement and enforce a robust Content Security Policy to restrict the execution of scripts from external sources.
• Regular security audits: Conduct regular security audits and penetration testing on the Wireguard client interface to identify and address any potential vulnerabilities.
• Stay updated: Keep the Wireguard software up to date with the latest security patches and fixes to mitigate any known vulnerabilities.

[systemcrash]

Potentially mitigated by #427

[MarcusWichelmann]

@systemcrash Not mitigated by #427, but #435 might at least partially help to mitigate this (but probably not sufficient).

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lavie3k]

Bug won't fix.