CVE-2021-20086 Explained : Impact and Mitigation

This article provides an in-depth look at CVE-2021-20086, a vulnerability related to Prototype Pollution in jquery-bbq 1.2.1.

Understanding CVE-2021-20086

CVE-2021-20086 highlights a critical security issue in the jquery-bbq library version 1.2.1 that could allow a malicious actor to manipulate Object.prototype through Prototype Pollution.

What is CVE-2021-20086?

CVE-2021-20086 involves 'Improperly Controlled Modification of Object Prototype Attributes' (Prototype Pollution) in jquery-bbq 1.2.1. This vulnerability enables an attacker to inject properties into Object.prototype.

The Impact of CVE-2021-20086

The impact of CVE-2021-20086 can be severe as it allows an unauthorized entity to modify the behavior of all objects within the application, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2021-20086

In this section, we will delve into the specific technical details of CVE-2021-20086 to better understand the nature of this security flaw.

Vulnerability Description

The vulnerability in jquery-bbq 1.2.1 arises from inadequate control over object prototype attributes, enabling an attacker to introduce unauthorized properties into Object.prototype.

Affected Systems and Versions

The primary system affected by CVE-2021-20086 is jquery-bbq version 1.2.1.

Exploitation Mechanism

Exploiting CVE-2021-20086 involves injecting malicious properties into Object.prototype, manipulating the behavior of objects within the application.

Mitigation and Prevention

Mitigating the risks associated with CVE-2021-20086 requires immediate action and the establishment of robust security practices.

Immediate Steps to Take

To address CVE-2021-20086, consider updating jquery-bbq to a patched version, monitoring for any suspicious activities, and restricting user inputs to prevent malicious injections.

Long-Term Security Practices

Implement secure coding practices, conduct regular security assessments, and stay informed about potential vulnerabilities in third-party libraries to enhance long-term security.

Patching and Updates

Regularly apply security patches and updates from trusted sources to ensure that known vulnerabilities like CVE-2021-20086 are remediated effectively.