CVE-2021-35502 : Vulnerability Insights and Analysis

A vulnerability in the MISP 2.4.144 version allows attackers to exploit unsanitized data in specific elements, potentially leading to security breaches.

Understanding CVE-2021-35502

This CVE entry describes a flaw in MISP version 2.4.144 that could be leveraged by threat actors to manipulate sensitive data within the generic template module.

What is CVE-2021-35502?

The vulnerability, identified as CVE-2021-35502, arises from inadequate data sanitation within the generic_field.ctp file of MISP 2.4.144, creating a security risk for users of the affected version.

The Impact of CVE-2021-35502

Exploitation of this vulnerability could potentially result in unauthorized access, data leaks, and other security compromises within MISP instances using version 2.4.144.

Technical Details of CVE-2021-35502

This section outlines essential technical aspects of the CVE vulnerability to understand its implications and the affected systems.

Vulnerability Description

The issue resides in the generic_field.ctp file of MISP 2.4.144, where certain data related to generic-template:index are not sanitized properly, enabling threat actors to manipulate data input.

Affected Systems and Versions

MISP version 2.4.144 is confirmed to be affected by this vulnerability, potentially impacting users who rely on this specific version of the threat intelligence platform.

Exploitation Mechanism

Attackers can exploit the lack of proper data sanitation in the generic_field.ctp file to inject malicious data or commands, bypass security controls, and execute unauthorized actions.

Mitigation and Prevention

To safeguard systems from CVE-2021-35502, immediate actions are necessary to prevent exploitation and maintain a secure environment.

Immediate Steps to Take

Users are advised to update MISP to a patched version, verify data inputs for malicious content, and monitor system logs for any suspicious activities.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and educating users on data validation can help prevent similar vulnerabilities in the future.

Patching and Updates

Ensure all MISP installations are up to date with the latest patches and security fixes released by the MISP team to address CVE-2021-35502 effectively.