CVE-2021-25325 : What You Need to Know

This CVE-2021-25325 article provides insights into a cross-site scripting (XSS) vulnerability identified in MISP version 2.4.136.

Understanding CVE-2021-25325

This section delves into the details of the CVE-2021-25325 vulnerability in MISP version 2.4.136.

What is CVE-2021-25325?

CVE-2021-25325 involves an XSS vulnerability in MISP 2.4.136, specifically through galaxy cluster element values to app/View/GalaxyElements/ajax/index.ctp. It allows threat actors to embed malicious JavaScript URLs within reference types.

The Impact of CVE-2021-25325

The vulnerability in MISP 2.4.136 can be exploited by attackers to execute harmful scripts within the context of the user's web session, potentially leading to unauthorized data disclosure or account compromise.

Technical Details of CVE-2021-25325

This section provides technical insights into the CVE-2021-25325 vulnerability.

Vulnerability Description

MISP 2.4.136 is susceptible to XSS attacks, enabling threat actors to inject malicious JavaScript via galaxy cluster element values in specific components.

Affected Systems and Versions

The XSS vulnerability affects MISP version 2.4.136, exposing systems with this version to potential exploitation if not addressed promptly.

Exploitation Mechanism

Threat actors can exploit CVE-2021-25325 by crafting specially designed galaxy cluster element values containing JavaScript URLs, which are not sanitized properly.

Mitigation and Prevention

Protective measures are crucial to mitigate the risks associated with CVE-2021-25325.

Immediate Steps to Take

Users are advised to update MISP to a patched version that addresses the XSS vulnerability. Additionally, input sanitization and output encoding can help prevent XSS attacks.

Long-Term Security Practices

Implement a robust security policy that includes regular security audits, educating users on safe browsing habits, and promptly applying security patches to prevent exploitation.

Patching and Updates

Regularly check for security updates and patches released by MISP to ensure that known vulnerabilities like CVE-2021-25325 are promptly addressed and mitigated.