Note that Fortinet's security advisory has Indicators of Compromise, of which 3 out of 5 IP addresses overlap with Arctic Wolf reporting from 10 January 2025: Console Chaos: A Campaign Targeting Publicly Exposed Management Interfaces on Fortinet FortiGate Firewalls.
While its use in a ransomware campaign hasn't been confirmed by Arctic Wolf, @GossiTheDog notes exploitation by a ransomware operator:
they have a copy of an exploit and are using it for initial access and handing off for lateral movement.
#CVE_2024_55591 #threatintel #ioc #fortinet #FortiProxy #fortios #zeroday #vulnerability #infosec #cybersecurity #cybersecurity #eitw #activeexploitation #cisakev #kev #cti #cyberthreatintelligence #infosec