Critical Vulnerability in node-yargs-parser: Object.prototype Manipulation Risk
Summary
UBUNTU-CVE-2020-7608: yargs-parser could be tricked into adding or modifying properties of Object.prototype using a "proto" payload. Affects node-yargs-parser versions 4.1.0-1 – 8.0.0-1. No fix is published. How to fix ↓
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Background
node-yargs-parser is a popular library used in Node.js applications for parsing command-line arguments. It provides a simple API for handling user input and is widely utilized in various projects. However, a vulnerability has been identified that allows malicious actors to manipulate the Object.prototype, potentially leading to severe security issues.
Vulnerability Detail
The vulnerability, identified as CVE-2020-7608, allows yargs-parser to be tricked into adding or modifying properties of Object.prototype using a specially crafted 'proto' payload. This can lead to unexpected behavior in applications that rely on this library, as it may allow attackers to alter the functionality of the application, potentially leading to data leakage or unauthorized access.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, you can sanitize inputs to ensure that no 'proto' payloads are processed by the yargs-parser. This can be done by implementing input validation checks before passing arguments to the parser.
Conclusion
The vulnerability in node-yargs-parser poses a significant risk to applications that utilize this library. It is crucial to update to the patched version and implement necessary security measures to mitigate potential threats.
See every vulnerability recorded for node-yargs-parser →
FAQ
CVE-2020-7608 is a vulnerability in the node-yargs-parser package that allows manipulation of Object.prototype through crafted payloads.
If your application uses node-yargs-parser, an attacker could exploit this vulnerability to alter the behavior of your application, potentially leading to security breaches.
Yes, a patched version of node-yargs-parser is available. It is recommended to update to version 8.0.1-1 or later.
Update the node-yargs-parser package to the latest patched version and implement input validation to prevent exploitation of this vulnerability.
You can use Vulert, which allows you to monitor and alert for open-source vulnerabilities in your software using just a manifest file. Visit Vulert Scanner to check if your application is affected.
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