CVE-2021-37534 : Exploit Details and Defense Strategies

A Stored XSS vulnerability in app/View/GalaxyClusters/add.ctp in MISP 2.4.146 could be exploited when forking a galaxy cluster.

Understanding CVE-2021-37534

This CVE entry describes a security issue in MISP version 2.4.146 that allows Stored XSS attacks through a specific component.

What is CVE-2021-37534?

The CVE-2021-37534 vulnerability specifically occurs in a file named add.ctp within the GalaxyClusters view of MISP 2.4.146, making it susceptible to Stored Cross-Site Scripting attacks during the action of forking a galaxy cluster.

The Impact of CVE-2021-37534

With this vulnerability, threat actors can inject malicious scripts into the application, potentially leading to unauthorized access, data theft, and other security compromises.

Technical Details of CVE-2021-37534

This section provides detailed insights into the vulnerability's description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in MISP 2.4.146 allows malicious actors to insert and execute arbitrary scripts through the GalaxyClusters component, posing a significant risk to data security.

Affected Systems and Versions

The affected product and version information are not available at the moment.

Exploitation Mechanism

Threat actors can exploit this vulnerability by manipulating the forking process of a galaxy cluster in MISP 2.4.146 to execute malicious scripts.

Mitigation and Prevention

To protect your systems from CVE-2021-37534, immediate steps, long-term security practices, and timely patching are essential.

Immediate Steps to Take

Perform a thorough security audit, restrict user input, and sanitize data inputs to prevent XSS attacks.

Long-Term Security Practices

Regularly update MISP to the latest version, conduct security training for developers, and implement secure coding practices to mitigate future vulnerabilities.

Patching and Updates

Apply patches released by MISP promptly to address the vulnerability and enhance the overall security posture of your system.