Fortinet Breach Incident Score: Analysis & Impact (FOR1102211112125)

In this Rankiteo incident briefing, we review the Fortinet breach identified under incident ID FOR1102211112125.

The analysis begins with a detailed overview of Fortinet's information like the linkedin page: https://www.linkedin.com/company/fortinet, the number of followers: 1167752, the industry type: Computer and Network Security and the number of employees: 15505 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 641 and after the incident was 638 with a difference of -3 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Fortinet and their customers.

Fortinet recently reported "Fortinet FortiWeb Zero-Day Vulnerabilities Exploited in Attack Chain", a noteworthy cybersecurity incident.

Fortinet was criticized for silently patching two zero-day vulnerabilities in its FortiWeb web application firewall without informing customers.

The disruption is felt across the environment, affecting FortiWeb web application firewall.

In response, and began remediation that includes Silent patching of vulnerabilities (criticized for lack of transparency).

The case underscores how teams are taking away lessons such as Transparency in vulnerability disclosure and patching is critical to maintain customer trust and security posture, and recommending next steps like Improve communication with customers regarding vulnerability patches and potential risks and Conduct thorough audits of patching processes to ensure compliance with best practices for transparency.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (95%), with evidence including exploited in the wild before public disclosure (CVE-2025-64446, CVE-2025-58034), and path traversal and authentication bypass in FortiWeb GUI. Under the Defense Evasion tactic, the analysis identified Valid Accounts: Local Accounts (T1078.003) with moderate to high confidence (85%), supported by evidence indicating authentication bypass weakness (CVE-2025-64446) and Use Alternate Authentication Material: Web Session Cookie (T1550.003) with moderate to high confidence (80%), supported by evidence indicating authentication bypass in FortiWeb GUI could enable session hijacking. Under the Lateral Movement tactic, the analysis identified Remote Services: SSH (T1021.004) with moderate to high confidence (70%), supported by evidence indicating high risk of system takeover, lateral movement implied by authentication bypass. Under the Persistence tactic, the analysis identified Server Software Component: Web Shell (T1505.003) with moderate to high confidence (75%), with evidence including path traversal (CVE-2025-64446) could enable web shell deployment, and potentially allowing threat actors to maintain persistence. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with high confidence (90%), supported by evidence indicating critical severity of the flaws poses a high risk of system takeover. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Application or System Exploitation (T1499.004) with moderate confidence (60%), supported by evidence indicating system compromise risk noted in description. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.