CVE-2020-7637 : Vulnerability Insights and Analysis

Class-transformer before version 0.3.1 is vulnerable to Prototype Pollution, allowing attackers to manipulate Object.prototype properties.

Understanding CVE-2020-7637

This CVE involves a security issue in class-transformer that enables attackers to exploit Prototype Pollution.

What is CVE-2020-7637?

class-transformer before 0.3.1 allows attackers to perform Prototype Pollution. The classToPlainFromExist function could be tricked into adding or modifying properties of Object.prototype using a proto payload.

The Impact of CVE-2020-7637

Attackers can manipulate Object.prototype properties, leading to potential security breaches.

Technical Details of CVE-2020-7637

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability in class-transformer allows for Prototype Pollution, enabling unauthorized modification of Object.prototype properties.

Affected Systems and Versions

Product: class-transformer
Vendor: n/a
Affected Versions: All versions prior to version 0.3.1

Exploitation Mechanism

Attackers exploit the classToPlainFromExist function to manipulate Object.prototype properties using a proto payload.

Mitigation and Prevention

Protect your systems and applications from CVE-2020-7637 with these mitigation strategies.

Immediate Steps to Take

Update to version 0.3.1 or later to mitigate the vulnerability.
Regularly monitor for security advisories and patches from the vendor.

Long-Term Security Practices

Implement input validation to prevent malicious payloads.
Conduct security audits and code reviews to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates promptly to ensure the security of your systems and applications.