CVE-2021-20085 : What You Need to Know

This CVE-2021-20085 involves a vulnerability in backbone-query-parameters version 0.4.0, allowing an attacker to manipulate Object Prototype Attributes, known as 'Prototype Pollution'.

Understanding CVE-2021-20085

This section will provide insight into the description, impact, technical details, and mitigation strategies related to CVE-2021-20085.

What is CVE-2021-20085?

CVE-2021-20085 is a 'Prototype Pollution' vulnerability in backbone-query-parameters 0.4.0, enabling a malicious actor to insert properties into Object.prototype, potentially leading to various security threats.

The Impact of CVE-2021-20085

The impact of this vulnerability lies in the unauthorized modification of Object Prototype Attributes, which can result in the execution of arbitrary code, data leakage, or service disruption.

Technical Details of CVE-2021-20085

In this section, we will delve into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improperly controlled modification of Object Prototype Attributes in backbone-query-parameters 0.4.0, facilitating an attacker to tamper with Object.prototype.

Affected Systems and Versions

The affected system includes backbone-query-parameters version 0.4.0, with other versions remaining unaffected by this 'Prototype Pollution' flaw.

Exploitation Mechanism

The exploitation of CVE-2021-20085 involves injecting properties into Object.prototype through the vulnerable version of backbone-query-parameters, thus compromising the integrity of the application.

Mitigation and Prevention

This section outlines the immediate steps to take, long-term security practices, and the importance of patching and updates to mitigate the risks associated with CVE-2021-20085.

Immediate Steps to Take

It is recommended to cease using the affected version immediately, conduct a security assessment, and monitor for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Implement strict input validation, sanitize user inputs, and stay informed about security best practices to prevent similar vulnerabilities in the future.

Patching and Updates

Ensure timely application of patches released by the vendor, update to non-vulnerable versions, and follow security advisories to enhance the overall security posture.