Fortinet warns of new FortiWeb zero-day exploited in attacks

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Until an official patch is released, European organizations should implement several targeted mitigations: 1) Restrict administrative access to FortiWeb devices using network segmentation and strict access control lists (ACLs) to limit exposure. 2) Deploy enhanced logging and monitoring on FortiWeb appliances to detect anomalous traffic patterns or exploitation attempts, integrating with SIEM solutions for real-time alerts. 3) Apply virtual patching by configuring custom WAF rules to block known attack vectors or suspicious payloads associated with the zero-day. 4) Conduct thorough network traffic analysis to identify and isolate compromised hosts promptly. 5) Engage with Fortinet support and subscribe to threat intelligence feeds for updates on patch availability and exploitation indicators. 6) Review and harden web application configurations behind FortiWeb to minimize attack surface. 7) Educate security teams on the threat specifics and incident response procedures tailored to FortiWeb exploitation scenarios. These measures go beyond generic advice by focusing on compensating controls and proactive detection tailored to this zero-day context.