CVE-2020-7792 : Vulnerability Insights and Analysis

This CVE-2020-7792 article provides insights into a Prototype Pollution vulnerability affecting the 'mout' package.

Understanding CVE-2020-7792

What is CVE-2020-7792?

CVE-2020-7792 is a vulnerability in the 'mout' package, impacting all versions. The issue arises from unchecked keys in the deepFillIn and deepMixIn functions, leading to Prototype Pollution.

The Impact of CVE-2020-7792

The vulnerability has a CVSS base score of 7.5 (High severity) with a high availability impact. It allows attackers to manipulate object properties, potentially leading to security breaches.

Technical Details of CVE-2020-7792

Vulnerability Description

The deepFillIn and deepMixIn functions in 'mout' allow recursive property filling and object mixing, respectively. However, the lack of key validation can result in Prototype Pollution.

Affected Systems and Versions

Product: mout
Vendor: Not applicable
Versions: All versions with the deepFillIn and deepMixIn functions

Exploitation Mechanism

The vulnerability can be exploited through crafted input that manipulates object properties, enabling attackers to pollute the prototype of objects.

Mitigation and Prevention

Immediate Steps to Take

Update 'mout' to a patched version that addresses the Prototype Pollution issue.
Implement input validation to prevent malicious object property manipulation.

Long-Term Security Practices

Regularly monitor for security updates and patches for 'mout' and other dependencies.
Conduct security audits to identify and mitigate similar vulnerabilities in the codebase.

Patching and Updates

Apply patches provided by the 'mout' package maintainers to fix the Prototype Pollution vulnerability.