CVE-2021-25953 : Security Advisory and Response

A prototype pollution vulnerability in 'putil-merge' versions 1.0.0 through 3.6.6 allows attackers to cause a denial of service and may lead to remote code execution.

Understanding CVE-2021-25953

This CVE discloses a security issue in 'putil-merge' that can be exploited to perform denial of service attacks and potentially execute remote code.

What is CVE-2021-25953?

CVE-2021-25953 is a vulnerability categorized as 'Prototype Pollution' in the 'putil-merge' library versions ranging from 1.0.0 to 3.6.6.

The Impact of CVE-2021-25953

The vulnerability can be leveraged by malicious actors to disrupt services and even execute arbitrary code remotely by manipulating the prototype-based object pollution flaw.

Technical Details of CVE-2021-25953

This section discusses the technical specifics of the vulnerability.

Vulnerability Description

The vulnerability in 'putil-merge' versions 1.0.0 to 3.6.6 enables bad actors to exploit prototype pollution, opening doors to DoS attacks and remote code execution.

Affected Systems and Versions

'putil-merge' versions 1.0.0 through 3.6.6 are all impacted by this potential security breach.

Exploitation Mechanism

Exploitation of this vulnerability involves manipulating the prototype properties of objects to inject malicious code and disrupt the normal functioning of the application.

Mitigation and Prevention

Learn how to address and prevent the CVE-2021-25953 vulnerability.

Immediate Steps to Take

Developers and organizations should act promptly to mitigate the risk by updating to a non-vulnerable version if available or implementing workarounds.

Long-Term Security Practices

Establish secure coding practices, conduct regular security assessments, and stay informed about library updates and security advisories to enhance defenses against similar vulnerabilities.

Patching and Updates

Ensure timely patching of affected software to address known vulnerabilities and maintain a robust security posture.