CVE-2021-25948 : Security Advisory and Response

Prototype pollution vulnerability in 'expand-hash' versions 0.1.0 through 1.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.

Understanding CVE-2021-25948

This CVE involves a prototype pollution vulnerability in 'expand-hash', exposing versions 0.1.0 through 1.0.1 to potential attacks.

What is CVE-2021-25948?

CVE-2021-25948 is a security vulnerability in 'expand-hash' versions 0.1.0 through 1.0.1, enabling attackers to trigger denial of service and potentially execute remote code.

The Impact of CVE-2021-25948

The impact of this CVE can be severe, leading to service disruption and unauthorized code execution, posing a significant risk to affected systems.

Technical Details of CVE-2021-25948

This section outlines the specific technical details related to CVE-2021-25948.

Vulnerability Description

The vulnerability arises from prototype pollution in 'expand-hash' versions 0.1.0 to 1.0.1, allowing attackers to exploit the software.

Affected Systems and Versions

'expand-hash' versions 0.1.0 through 1.0.1 are affected by this vulnerability, leaving systems with these versions at risk.

Exploitation Mechanism

Attackers can exploit this vulnerability to initiate denial of service attacks and potentially execute remote code through malicious inputs.

Mitigation and Prevention

Mitigation strategies and preventative measures for CVE-2021-25948.

Immediate Steps to Take

Immediately update the 'expand-hash' software to the latest secure version to prevent exploitation of this vulnerability.

Long-Term Security Practices

Implement robust security practices, including regular software updates and code reviews, to enhance system defense against potential threats.

Patching and Updates

Stay informed about security patches released by the software vendor and promptly apply all relevant updates to protect systems from known vulnerabilities.