Command Injection Affecting total.js package, versions <3.4.7
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-TOTALJS-1046672
- published29 Jan 2021
- disclosed29 Jan 2021
- creditAlessio Dellalibera
Introduced: 29 Jan 2021
CVE-2020-28494 (opens in a new tab)How to fix?
Upgrade total.js to version 3.4.7 or higher.
Overview
total.js is a framework for Node.js platfrom written in pure JavaScript similar to PHP's Laravel or Python's Django or ASP.NET MVC. It can be used as web, desktop, service or IoT application.
Affected versions of this package are vulnerable to Command Injection. The issue occurs in the image.pipe and image.stream functions. The type parameter is used to build the command that is then executed using child_process.spawn. The issue occurs because child_process.spawn is called with the option shell set to true and because the type parameter is not properly sanitized.
PoC
const total = require('total.js');
let image = Image.load("");
let payload = ";touch HACKED;";
image.stream(payload);
// image.pipe(null, payload);