CVE-2023-41838 : Security Advisory and Response
Learn about CVE-2023-41838, an OS command injection vulnerability in FortiManager versions 7.4.0 and 7.2.0 through 7.2.3. Upgrade to secure versions to prevent unauthorized code execution.
This article provides an in-depth understanding of CVE-2023-41838, including its impact, technical details, and mitigation strategies.
Understanding CVE-2023-41838
CVE-2023-41838 refers to an improper neutralization of special elements used in an OS command ('OS command injection') vulnerability found in FortiManager versions 7.4.0 and 7.2.0 through 7.2.3. This vulnerability may allow an attacker to execute unauthorized code or commands via the FortiManager CLI.
What is CVE-2023-41838?
It is a security vulnerability in FortiManager software that can be exploited by attackers to run unauthorized code or commands through the FortiManager command-line interface.
The Impact of CVE-2023-41838
The vulnerability poses a medium-level threat with a CVSS base score of 6.9. Attackers with low privileges can exploit this vulnerability to achieve high integrity impact, potentially impacting the availability of affected systems.
Technical Details of CVE-2023-41838
Vulnerability Description
The vulnerability stems from an inadequate handling of special characters within OS commands, allowing attackers to inject malicious code or unauthorized commands.
Affected Systems and Versions
FortiManager versions 7.4.0, 7.2.0 through 7.2.3, 7.0.0 through 7.0.8, 6.4.0 through 6.4.12, and 6.2.0 through 6.2.11 are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting specific commands to inject unauthorized code or commands through the FortiManager CLI.
Mitigation and Prevention
To mitigate the risks associated with CVE-2023-41838, it is essential to take immediate and long-term security measures.
Immediate Steps to Take
Upgrade FortiManager to versions 7.4.1 or above, 7.2.4 or above, 7.0.9 or above, 6.4.13 or above, or 6.2.12 or above to prevent exploitation of this vulnerability.
Long-Term Security Practices
Implement robust security protocols, regularly update software, conduct security audits, and train personnel on cybersecurity best practices to enhance overall security posture.
Patching and Updates
Stay informed about security updates released by Fortinet and promptly apply patches to address known vulnerabilities.