CISA Warns of FortiCloud SSO Authentication Bypass Flaw Actively Exploited by Hackers

CISA Warns of FortiCloud SSO Authentication Bypass Flaw Actively Exploited by Hackers

Why This Matters Now: In December 2024, the Cybersecurity and Infrastructure Security Agency (CISA) issued an alert regarding a critical authentication bypass flaw in FortiCloud Single Sign-On (SSO). This vulnerability has already been exploited by hackers, putting organizations relying on FortiCloud SSO at significant risk. If you haven鈥檛 already addressed this issue, your systems could be compromised. 馃毃 Security Alert: FortiCloud SSO authentication bypass flaw actively exploited by hackers. Apply patches and harden configurations immediately. 100+Active Attacks 24hrsTime to Patch Understanding the Vulnerability The vulnerability lies in the way FortiCloud SSO handles authentication requests. Attackers can exploit this flaw to bypass the authentication process, gaining unauthorized access to systems and networks protected by FortiCloud SSO. This is particularly concerning for organizations that rely on SSO for secure access management. ...

Jan 30, 2026 路 6 min 路 1066 words 路 IAMDevBox
Automated FortiGate Attacks Exploit FortiCloud SSO to Alter Firewall Configurations

Automated FortiGate Attacks Exploit FortiCloud SSO to Alter Firewall Configurations

Why This Matters Now: In December 2023, a series of automated attacks exploited vulnerabilities in FortiCloud Single Sign-On (SSO) to alter firewall configurations. These attacks compromised the security of numerous organizations, underscoring the importance of robust identity and access management (IAM) practices. If you rely on FortiCloud SSO for managing access to your FortiGate firewalls, this post provides actionable steps to mitigate risks. 馃毃 Breaking: Automated attacks exploiting FortiCloud SSO to alter FortiGate firewall configurations have been reported. Immediate action is required to secure your infrastructure. 100+Organizations Affected 24hrsTime to Respond Understanding the Attack Vector Vulnerability Overview The attacks leveraged weaknesses in the FortiCloud SSO implementation to gain unauthorized access to FortiGate firewall configurations. Attackers used automated scripts to exploit these vulnerabilities, allowing them to modify firewall rules and settings without proper authorization. ...

Jan 22, 2026 路 5 min 路 956 words 路 IAMDevBox