CVE-2020-7746 Explained : Impact and Mitigation
Learn about CVE-2020-7746 affecting chart.js before version 2.9.4, leading to prototype pollution. Find mitigation steps and the impact of this high-severity vulnerability.
This CVE-2020-7746 article provides insights into a vulnerability affecting the package chart.js before version 2.9.4, leading to prototype pollution.
Understanding CVE-2020-7746
What is CVE-2020-7746?
CVE-2020-7746 is a vulnerability in chart.js before version 2.9.4, where the options parameter is not properly sanitized, causing prototype pollution during object merging.
The Impact of CVE-2020-7746
The vulnerability has a CVSS base score of 7.5 (High severity) with a high availability impact. It allows attackers to manipulate object prototypes, potentially leading to security breaches.
Technical Details of CVE-2020-7746
Vulnerability Description
The issue arises from improper handling of the options parameter during object merging, allowing for prototype pollution.
Affected Systems and Versions
- Product: chart.js
- Versions Affected: < 2.9.4
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- Exploit Code Maturity: Proof of Concept
Mitigation and Prevention
Immediate Steps to Take
- Update chart.js to version 2.9.4 or higher.
- Implement input validation to sanitize user inputs.
Long-Term Security Practices
- Regularly monitor for security updates and patches.
- Conduct security audits to identify and mitigate similar vulnerabilities.
Patching and Updates
- Apply patches provided by the chart.js project to address the prototype pollution vulnerability.