CVE-2021-43257 : Vulnerability Insights and Analysis

A vulnerability in MantisBT before version 2.25.3 could allow an unprivileged attacker to execute code or access information.

Understanding CVE-2021-43257

What is CVE-2021-43257?

This CVE describes a lack of neutralization of formula elements in the CSV API of MantisBT, potentially enabling an attacker to exploit the generated CSV file.

The Impact of CVE-2021-43257

The vulnerability could lead to code execution or unauthorized access to data when opening the CSV file in Excel.

Technical Details of CVE-2021-43257

Vulnerability Description

The CSV API in MantisBT before 2.25.3 fails to neutralize formula elements, creating a security risk.

Affected Systems and Versions

Product: MantisBT
Vendor: N/A
Vulnerable Versions: Before 2.25.3

Exploitation Mechanism

Attackers could leverage the flaw by manipulating formula elements in CSV files, targeting users who open these files in Excel.

Mitigation and Prevention

Immediate Steps to Take

Upgrade MantisBT to version 2.25.3 or later to mitigate the vulnerability.
Avoid opening CSV files from untrusted sources, especially in Excel.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Educate users on safe file handling practices to prevent exploitation.
Implement file type and content validation mechanisms.

Patching and Updates

Apply patches and updates provided by MantisBT to address the vulnerability effectively.