FortiPortal Remote Code Execution Scanner

FortiPortal is a comprehensive security management solution offered by Fortinet. It is primarily used by network administrators and IT professionals to manage security tasks and analytics within a multi-tenant and multi-tier network environment. This product allows for centralized control and monitoring of multiple network devices, enhancing network security through streamlined management. FortiPortal is widely used in enterprise environments and large organizations for its scalability and robust capabilities. The software is critical for managing extensive networks with a wide variety of security appliances. Its features enable efficient threat monitoring, ensuring that the network remains protected against evolving threats.

The Remote Code Execution (RCE) vulnerability in FortiPortal pertains to the exploitation of Apache Log4j, a widely used library for logging services in Java applications. This vulnerability can allow an attacker to execute arbitrary code on the server, potentially leading to unauthorized access or control over the affected system. The issue arises from the way Log4j processes log messages, allowing specially crafted log entries to trigger remote code execution. This vulnerability poses a significant risk as it can be exploited remotely, without authentication, increasing the potential for widespread exploitation. It is critical for systems utilizing Log4j in their tech stack to be aware of this vulnerability and implement appropriate mitigations.

The vulnerability in detail involves the use of JNDI (Java Naming and Directory Interface) lookups in Apache Log4j, which can be exploited by sending crafted log messages. In FortiPortal, an attacker can leverage this by injecting malicious payloads via the login interface or similar endpoints where log messages are processed without sanitization. The parameters vulnerable to this type of injection include username and locale fields where JNDI lookups are executed. Successful exploitation could enable an attacker to gain control over the server, execute arbitrary commands, and access sensitive data. The template specifically targets the login process to identify potential exposure to this vulnerability.

Exploitation of this vulnerability can lead to severe consequences, including full system compromise and data breaches. Attackers can execute commands remotely, install malware, and exfiltrate data. The exploitation can be automated, increasing the threat's scalability and impact. Once exploited, attackers can maintain persistent access to the network, posing a long-term security risk. Organizations could face significant operational disruptions, financial losses, and reputational damage. It is essential for affected users to apply patches and mitigation strategies promptly to prevent exploitation.

REFERENCES

• https://www.fortiguard.com/psirt/FG-IR-21-245