Fortinet has patched an authentication bypass vulnerability (CVE-2024-55591) affecting its FortiOS firewalls and FortiProxy web gateways that’s being exploited by attackers to compromise publicly-exposed FortiGate firewalls. While Fortinet acknowledged in-the-wild exploitation in the accompanying security advisory, they did share any attack-related information except indicators of compromise (IoCs): IP addresses, log entries, created users, and a list of operations performed by the threat actor. Some of those IoCs overlap with those shared by Arctic Wolf researchers … More
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