Vulnerability in Blackbox VS Code Extension

Technical Vulnerability Disclosure: Blackbox VS Code Extension

Author: Frank Sx
Date: 21/01/2025
Subject: Technical Disclosure of Vulnerability in Blackbox VS Code Extension

Overview

This post serves as a formal technical disclosure of a critical security vulnerability identified in the Blackbox VS Code extension (Blackboxapp.blackboxagent) up to the latest version. The vulnerability involves self-referral exploits that could enable unauthorized users to generate and redeem referral IDs, leading to potential abuse of the referral system.

Vulnerability Details

Description

The vulnerability is rooted in the implementation of the referral ID generation and redemption processes within the Blackbox API, specifically located at:

https://file+.vscode-resource.vscode-cdn.net/home/xxxxx/.vscode-oss/extensions/blackboxapp.blackboxagent-2.8.12/webview-ui/build/static/js/main.js

Identified Issues:

  1. Self-Referral Exploit:

    • The current implementation allows any user to generate a referral ID using their unique user ID.
    • This ID can be redeemed by any user, including the original user, without proper validation of the sender-receiver relationship.

  2. Lack of Validation:

    • The API does not adequately validate the relationship between the sender and receiver during the redemption process.
    • This oversight permits users to redeem referral IDs that they should not have access to, facilitating potential abuse of the referral system.

Proof of Concept

The following Python code demonstrates the vulnerability through a proof of concept (PoC):

python74 lines
Click to expand
import requests
import json
...

Impact Assessment

The impact of this vulnerability is substantial, as it allows exploitation of the referral system, potentially resulting in:

  • Unauthorized Access: Users may gain access to referral benefits they are not entitled to.
  • Financial Abuse: Exploitation of the referral program could lead to significant financial losses or misallocation of resources.
  • Integrity Damage: The trustworthiness of the referral system may be compromised, affecting user confidence.

Conclusion

This technical disclosure outlines a significant vulnerability within the Blackbox VS Code extension that requires immediate attention. The issues presented here highlight the need for robust security measures to protect users and maintain the integrity of the referral system.

By addressing these vulnerabilities, the Blackbox team can enhance the security of their application and foster greater user trust.

Best Regards,
Frank Sx

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