CVE-2021-40848 : Security Advisory and Response

This CVE-2021-40848 article provides details about a vulnerability in Mahara that could lead to CSV injection.

Understanding CVE-2021-40848

This section delves into the specifics of the vulnerability.

What is CVE-2021-40848?

CVE-2021-40848 is a security issue in Mahara versions before 20.04.5, 20.10.3, 21.04.2, and 21.10.0. It allows CSV files to carry malicious strings that can be executed locally, posing a CSV injection risk.

The Impact of CVE-2021-40848

The vulnerability could be exploited to execute malicious code through CSV files, endangering the security and integrity of affected systems.

Technical Details of CVE-2021-40848

Exploring the technical aspects of the CVE-2021-40848 vulnerability.

Vulnerability Description

CSV files exported from Mahara versions prior to specific releases may contain interpretable characters by spreadsheet programs, enabling malicious code execution locally.

Affected Systems and Versions

Mahara versions before 20.04.5, 20.10.3, 21.04.2, and 21.10.0 are impacted by this vulnerability.

Exploitation Mechanism

The issue arises from the incorrect interpretation of characters in CSV files, enabling the execution of code as commands on local devices.

Mitigation and Prevention

Understanding how to address and prevent CVE-2021-40848.

Immediate Steps to Take

Update Mahara to versions 20.04.5, 20.10.3, 21.04.2, or 21.10.0 to mitigate the CSV injection risk.

Long-Term Security Practices

Educate users on safe file handling practices to prevent inadvertent execution of malicious code through CSV files.
Regularly monitor and verify CSV files for unusual or potentially harmful content.

Patching and Updates

Stay updated with security patches and version upgrades provided by Mahara to safeguard systems against known vulnerabilities.