CVE-2021-41022 : Vulnerability Insights and Analysis

A detailed overview of CVE-2021-41022, a vulnerability in Fortinet FortiSIEM Windows Agent versions 4.1.4 and below that allows attackers to execute privileged code or commands via PowerShell scripts.

Understanding CVE-2021-41022

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-41022.

What is CVE-2021-41022?

CVE-2021-41022 is an improper privilege management vulnerability in Fortinet FortiSIEM Windows Agent versions 4.1.4 and below. It permits attackers to run privileged code or commands using PowerShell scripts.

The Impact of CVE-2021-41022

The vulnerability has a CVSS base score of 7.8 (High severity) with a high impact on confidentiality, integrity, and availability of the affected systems. It requires low privileges to exploit and has a local attack vector.

Technical Details of CVE-2021-41022

Exploring the specifics of the vulnerability in terms of its description, affected systems, and exploitation mechanism.

Vulnerability Description

The issue arises from improper privilege management in FortiSIEM Windows Agent versions 4.1.4 and below, allowing unauthorized execution of code or commands via PowerShell scripts.

Affected Systems and Versions

Product: Fortinet FortiSIEM Windows Agent
Versions Affected: 4.1.4, 4.1.3, 4.1.2, 4.1.1, 4.1.0, 4.0.0, 3.3.0, 3.2.2, 3.2.1, 3.2.0, 3.1.2, 3.1.0

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to execute privileged code or commands through PowerShell scripts, potentially leading to system compromise.

Mitigation and Prevention

Guidelines to address and prevent the exploitation of CVE-2021-41022.

Immediate Steps to Take

Apply the official fix provided by Fortinet to patch the vulnerability.
Monitor systems for any unusual activities or unauthorized access attempts.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement the principle of least privilege to restrict access to critical system functions.

Patching and Updates

Keep Fortinet FortiSIEM Windows Agent up to date with the latest patches and security updates to mitigate potential risks.