CVE-2021-21406 Explained : Impact and Mitigation

A command injection vulnerability in Combodo iTop versions prior to 2.7.4 allows remote attackers to execute arbitrary commands via the Setup Wizard when providing the Graphviz executable path.

Understanding CVE-2021-21406

This CVE highlights a security issue in Combodo iTop that could result in command execution by unauthorized users.

What is CVE-2021-21406?

CVE-2021-21406 is a command injection vulnerability in Combodo iTop versions before 2.7.4, allowing attackers to run malicious commands through the Setup Wizard.

The Impact of CVE-2021-21406

The vulnerability poses a medium severity risk with a CVSS base score of 5.8. It could lead to unauthorized command execution and compromise the integrity of affected systems.

Technical Details of CVE-2021-21406

The technical details include the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises due to improper neutralization of special elements used in a command, enabling attackers to inject and execute arbitrary commands.

Affected Systems and Versions

Combodo iTop versions prior to 2.7.4 are impacted by this vulnerability. Users are advised to update to version 2.7.4 or 3.0.0 to mitigate the risk.

Exploitation Mechanism

Attackers with low privileges can exploit this vulnerability over the network with user interaction required to execute malicious commands.

Mitigation and Prevention

Effective measures to prevent exploitation and secure systems against CVE-2021-21406.

Immediate Steps to Take

Users should update iTop to version 2.7.4 or 3.0.0 immediately to eliminate the command injection vulnerability.

Long-Term Security Practices

Implement strict input validation mechanisms and validate user inputs to prevent command injection attacks in the future.

Patching and Updates

Regularly check for security updates and patches released by Combodo to stay protected from potential vulnerabilities.