CVE-2023-48776 - Missing Authorization Vulnerability in Thomas Scholl canvasio3D Light Leads to Exploiting Incorrectly Configured Access Control Security Levels

The canvasio3D Light library, developed by Thomas Scholl, is a popular open-source project for creating 3D scenes and objects on HTML5 canvas elements in WebGL-enabled browsers. This powerful library allows web developers to create complex 3D animations that can be manipulated through user interactions. However, a vulnerability, identified as CVE-2023-48776, has recently been discovered in Thomas Scholl's canvasio3D Light library. This vulnerability could allow an attacker to exploit incorrectly configured access control security levels, leading to unauthorized access to sensitive data and even compromising the entire application.

Affected Versions

canvasio3D Light: from n/a through 2.5.

Exploit Details

The missing authorization vulnerability exists due to incorrect access control configurations in the canvasio3D Light library. When the access control settings for the application are configured improperly, it allows unauthorized users to view and interact with potentially sensitive data.

To demonstrate this vulnerability, consider the following code snippet

// Initialize Canvasio3D
let myCanvasio = new Canvasio3D("myCanvas");
myCanvasio.init();

// Load 3D model
myCanvasio.loadModel("../models/model.obj", {
  name: "model",
  onLoad: function () {
    // Enable interaction for the model
    myCanvasio.addInteraction("model");

    // Attach event listener for rotations
    myCanvasio.on("rotate", function (rotation) {
      console.log("Model rotated by:", rotation);
    });
  },
});

// Check user permissions
if (userHasPermission()) {
  // Start rendering
  myCanvasio.startRendering();
} else {
  console.log("Unauthorized access");
}

In this example, the access control check is performed using the userHasPermission() function, which is assumed to return true for authorized users and false for unauthorized users. However, due to the missing authorization vulnerability, an attacker could bypass this check and gain unauthorized access to the 3D model, even if the userHasPermission() function returns false.

Mitigation

To mitigate this vulnerability and secure your application, you should ensure that the access control configurations are correctly set and do not allow unauthorized users to access sensitive data. This can be achieved by:

1. Ensuring that you are using the latest version of the canvasio3D Light library (version 2.5.1 or newer), as this issue has been resolved in these versions. You can download the latest version from the official GitHub repository: https://github.com/thomasscholl/canvasio3D
2. Implementing proper access control checks at both the client and server sides of your application, to ensure that sensitive data and operations are protected against unauthorized users.

Conclusion

The missing authorization vulnerability in Thomas Scholl's canvasio3D Light library is a critical security issue that can lead to unauthorized access to sensitive data and even compromise the overall security of your application. By ensuring that you are using the latest version of the library and implementing robust access control checks, you can protect your application from potential attacks and ensure that your valuable data remains secure.

For more information about CVE-2023-48776 and its associated risks, you can refer to the following resources:
1. CVE-2023-48776 Description on cve.mitre.org
2. National Vulnerability Database
3. canvasio3D Light GitHub Repository

Timeline

Published on: 12/09/2024 13:15:34 UTC