CVE-2020-35149 : Exploit Details and Defense Strategies

lib/utils.js in mquery before 3.2.3 allows a pollution attack because a special property (e.g., proto) can be copied during a merge or clone operation.

Understanding CVE-2020-35149

This CVE involves a vulnerability in mquery that can lead to a pollution attack due to improper handling of special properties.

What is CVE-2020-35149?

CVE-2020-35149 is a vulnerability in mquery before version 3.2.3 that allows a pollution attack by enabling the copying of special properties like proto during certain operations.

The Impact of CVE-2020-35149

The vulnerability can be exploited to manipulate object properties, potentially leading to security breaches or unauthorized access to sensitive data.

Technical Details of CVE-2020-35149

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue arises from the improper handling of special properties in mquery, allowing for a pollution attack during merge or clone operations.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions before 3.2.3

Exploitation Mechanism

The vulnerability can be exploited by manipulating special properties like proto during merge or clone operations in mquery.

Mitigation and Prevention

Protecting systems from CVE-2020-35149 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update mquery to version 3.2.3 or newer to mitigate the vulnerability.
Monitor for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to address known vulnerabilities.
Implement secure coding practices to prevent similar issues in the future.

Patching and Updates

Ensure timely patching and updates for all relevant software components to stay protected against potential security threats.