CVE-2022-39953 : Security Advisory and Response

A privilege escalation vulnerability has been identified in Fortinet FortiNAC software versions, allowing attackers to gain unauthorized privileges through specially crafted commands.

Understanding CVE-2022-39953

This vulnerability poses a significant risk to systems running affected versions of FortiNAC, potentially leading to unauthorized escalation of privileges.

What is CVE-2022-39953?

The CVE-2022-39953 is an improper privilege management vulnerability present in multiple versions of Fortinet FortiNAC software. Attackers exploiting this vulnerability can execute specially crafted commands to gain escalated privileges on the system.

The Impact of CVE-2022-39953

The impact of this vulnerability is deemed high, with confidentiality, integrity, and availability of affected systems at risk. This could lead to unauthorized access to sensitive information and compromise the overall security of the system.

Technical Details of CVE-2022-39953

This section provides detailed technical information about the vulnerability, including the description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability exists in FortiNAC versions 9.4.0 through 9.4.1, 9.2.0 through 9.2.6, 9.1.0 through 9.1.8, and other specified versions, enabling attackers to perform privilege escalation attacks through crafted commands.

Affected Systems and Versions

FortiNAC versions 9.4.0 to 9.4.1, 9.2.0 to 9.2.6, 9.1.0 to 9.1.8, and various other versions, including 8.8.x, 8.7.x, 8.6.x, 8.5.x, and 8.3.7, are affected by CVE-2022-39953.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted commands to the affected FortiNAC software, allowing them to escalate privileges and gain unauthorized access.

Mitigation and Prevention

To address CVE-2022-39953 and prevent potential exploitation, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Users are advised to upgrade to the following FortiNAC versions or newer to mitigate the vulnerability:

FortiNAC version 9.4.2 or above
FortiNAC version 9.2.7 or above
FortiNAC version 9.1.9 or above
FortiNAC version 7.2.0 or above

Long-Term Security Practices

In addition to applying patches, organizations should implement stringent security measures, network segmentation, and user access controls to enhance overall system security.

Patching and Updates

Regularly check for security updates and patches from Fortinet to ensure that the software is up to date with the latest security fixes.