CVE-2021-25324 : Exploit Details and Defense Strategies

MISP 2.4.136 has a Stored XSS vulnerability in the galaxy cluster view that can be exploited via a cluster name, leading to potential security risks.

Understanding CVE-2021-25324

This CVE refers to a specific vulnerability found in MISP version 2.4.136, allowing for Stored XSS attacks through the galaxy cluster view.

What is CVE-2021-25324?

The vulnerability in MISP 2.4.136 enables malicious actors to introduce harmful code via a cluster name, posing a risk of Stored Cross-Site Scripting (XSS) attacks.

The Impact of CVE-2021-25324

Exploitation of this vulnerability could result in unauthorized access, data theft, or the execution of arbitrary scripts within the context of the user's session, potentially compromising system integrity.

Technical Details of CVE-2021-25324

This section delves into the specifics of the vulnerability, its affected systems, versions, and the mechanism of exploitation.

Vulnerability Description

MISP 2.4.136 is susceptible to Stored XSS attacks, triggered when a malicious cluster name is injected into the galaxy cluster view file.

Affected Systems and Versions

The vulnerability impacts MISP version 2.4.136, exposing systems that have not implemented the necessary security patches or updates.

Exploitation Mechanism

Attackers can exploit this flaw by crafting a malicious cluster name that contains executable scripts, resulting in the execution of unauthorized code within the application.

Mitigation and Prevention

Explore the steps recommended to mitigate the risks associated with CVE-2021-25324 and prevent potential security breaches.

Immediate Steps to Take

Users are advised to update MISP to the latest version, implement security best practices, and sanitize user inputs to mitigate the risk of Stored XSS attacks.

Long-Term Security Practices

Incorporating regular security assessments, employing content security policies, and educating users on identifying and avoiding suspicious content are essential for long-term defense against XSS vulnerabilities.

Patching and Updates

Regularly check for security updates from MISP, apply patches promptly, and stay informed about emerging threats to safeguard systems from potential exploits.