CVE-2023-25607 : Vulnerability Insights and Analysis

This CVE involves an improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerability in Fortinet products including FortiManager, FortiAnalyzer, and FortiADC. The vulnerability may allow an authenticated attacker to execute arbitrary commands on the underlying shell.

Understanding CVE-2023-25607

This section delves into the details of CVE-2023-25607, its impact, technical details, and mitigation strategies.

What is CVE-2023-25607?

The CVE-2023-25607 vulnerability involves an improper neutralization of special elements used in an OS Command ('OS Command Injection') in various Fortinet products. Specifically, this vulnerability lies in FortiManager, FortiAnalyzer, and FortiADC management interfaces. An authenticated attacker with at least READ permissions on system settings could exploit this vulnerability to execute arbitrary commands on the underlying shell.

The Impact of CVE-2023-25607

The impact of this vulnerability is significant, with a CVSS v3.1 base score of 7.4, marking it as a high-severity issue. The attack complexity is low, but the availability, confidentiality, and integrity impacts are all high. Privileges required for exploitation are low, further enhancing the risk associated with this vulnerability.

Technical Details of CVE-2023-25607

This part provides a deeper insight into the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in FortiManager, FortiAnalyzer, and FortiADC arises from an unsafe usage of the wordexp function, leading to improper neutralization of special elements in OS Command Injection. This flaw may be leveraged by attackers with READ permissions to execute unauthorized commands.

Affected Systems and Versions

The affected versions of Fortinet products include FortiManager versions 6.0 to 7.2.2, FortiAnalyzer versions 6.0 to 7.2.2, and FortiADC versions 6.0 to 7.1.0. It is crucial for users of these versions to take immediate action to mitigate the risk posed by this vulnerability.

Exploitation Mechanism

Attackers with at least READ permissions on system settings can exploit this vulnerability to execute arbitrary commands on the underlying shell, compromising the security and integrity of the affected systems.

Mitigation and Prevention

To address the CVE-2023-25607 vulnerability, it is essential to adopt immediate and long-term security measures, including patching and updates.

Immediate Steps to Take

Users are advised to upgrade to the following versions to mitigate the vulnerability:

FortiAnalyzer version 7.4.0 or above
FortiManager version 7.4.0 or above
FortiADC version 7.1.1 or above

Long-Term Security Practices

Implementing stringent access controls, security monitoring, and ongoing vulnerability assessments can help enhance the resilience of the system against potential threats.

Patching and Updates

Regularly applying security patches and updates provided by Fortinet is crucial to safeguarding systems against known vulnerabilities and ensuring optimal protection from potential security risks.