CVE-2021-24021 Explained : Impact and Mitigation
Learn about CVE-2021-24021, an improper neutralization vulnerability impacting Fortinet FortiAnalyzer. Understand the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-24021, focusing on an improper neutralization of input vulnerability affecting Fortinet FortiAnalyzer versions 6.4.3 and below, 6.2.7 and below, and 6.0.10 and below.
Understanding CVE-2021-24021
This section delves into the critical aspects of CVE-2021-24021, shedding light on the vulnerability, its impact, and technical details.
What is CVE-2021-24021?
CVE-2021-24021 involves an improper neutralization of input vulnerability in FortiAnalyzer. Attackers can exploit this flaw to execute a stored cross-site scripting attack via Logview column settings.
The Impact of CVE-2021-24021
The vulnerability poses a medium-severity risk, allowing remote authenticated attackers to conduct stored XSS attacks. The attack complexity is low, with low privilege requirements.
Technical Details of CVE-2021-24021
This section provides a deeper dive into the technical aspects of CVE-2021-24021, including the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper input neutralization in FortiAnalyzer, enabling attackers to execute unauthorized code or commands.
Affected Systems and Versions
Fortinet FortiAnalyzer versions 6.4.3 and below, 6.2.7 and below, and 6.0.10 and below are impacted by this vulnerability.
Exploitation Mechanism
Remote authenticated attackers can exploit this flaw by manipulating column settings in Logview to execute stored XSS attacks.
Mitigation and Prevention
This section outlines the necessary steps to mitigate the risks associated with CVE-2021-24021 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update FortiAnalyzer to the latest version and monitor for any suspicious activities or unauthorized access.
Long-Term Security Practices
Implement strict input validation mechanisms, conduct regular security assessments, and educate users on secure coding practices.
Patching and Updates
Regularly apply security patches released by Fortinet, stay informed about security advisories, and maintain proactive security measures.