CVE-2023-48658 : Security Advisory and Response

An issue has been discovered in MISP before version 2.4.176 that can lead to a vulnerability due to the lack of a necessary function in the AppModel.php file. This CVE has been identified as affecting systems that do not have proper input validation for certain characters.

Understanding CVE-2023-48658

This section will delve into the details of CVE-2023-48658, shedding light on the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-48658?

CVE-2023-48658 is a vulnerability found in MISP versions prior to 2.4.176, specifically within the AppModel.php file. The issue stems from the absence of a checkParam function that can validate alphanumerics, underscore, dash, period, and space characters, leaving systems prone to exploitation.

The Impact of CVE-2023-48658

This vulnerability can be exploited by malicious actors to manipulate input fields that lack proper validation, potentially leading to security breaches, injection attacks, and unauthorized access to sensitive information.

Technical Details of CVE-2023-48658

Let's explore the technical aspects of CVE-2023-48658 to understand the vulnerability better.

Vulnerability Description

The lack of a checkParam function in AppModel.php allows for the insertion of malicious characters into input fields, paving the way for attacks such as SQL injection and data manipulation.

Affected Systems and Versions

All systems running MISP versions earlier than 2.4.176 are susceptible to CVE-2023-48658 if they do not incorporate proper input validation mechanisms for the mentioned characters.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting unauthorized characters through input fields, bypassing security measures and compromising the integrity and confidentiality of data.

Mitigation and Prevention

To address CVE-2023-48658 and enhance the security posture of affected systems, immediate steps and long-term practices need to be implemented.

Immediate Steps to Take

System administrators are advised to update MISP to version 2.4.176 or later, ensuring that the necessary security patches and fixes are applied promptly to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust input validation techniques, conducting regular security audits, and raising awareness among users regarding secure input practices are crucial for preventing similar vulnerabilities in the future.

Patching and Updates

Regularly monitoring for security updates, installing patches released by MISP promptly, and staying informed about emerging threats are essential steps in maintaining a secure environment.