Caught in the FortiNet: How Attackers Can Exploit FortiClient to Compromise Organizations (1/3)

Fortinet is a major player in the cybersecurity sector, offering a broad array of security solutions, including firewalls and endpoint security, which are used across various industries to protect against cyber threats. Recent research into Fortinet's FortiClient and FortiClient Endpoint Management Server (EMS) uncovered multiple severe vulnerabilities that allow attackers to potentially take over organizations with minimal user interaction. These vulnerabilities, which affect FortiClient, FortiClient EMS, FortiOS, and FortiProxy, have been addressed and fixed, though researchers believe the CVSS scores provided by Fortinet underestimate their severity. The research demonstrated how an attacker could exploit a vulnerability in FortiClient to execute arbitrary code on a victim's machine through a simple user interaction. Despite the CVSS scores suggesting a low threat level, researchers emphasize the critical nature of these vulnerabilities and advise users to update to the fixed versions immediately. The blog series aims to highlight the potential impact of these vulnerabilities by presenting realistic attack scenarios, showcasing the importance of addressing such security issues promptly.