Unit 42 investigated a multi-stage network intrusion against a telecommunications organization that occurred in September 2024, which we are tracking as cluster CL-STA-0954 (aka UNC5820). The attackers behind CL-STA-0954 achieved an initial compromise by exploiting CVE-2024-47575 against a centralized FortiManager appliance.
From that single appliance, our observations are that the attackers exfiltrated an archive containing running configurations, cryptographic material and database files containing information about more than 500 managed FortiGate firewalls. Those firewalls protected the target’s own infrastructure and the networks of its clients.
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Source: Palo Alto Unit 42
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