FortiBleed: Credential Reuse, Legacy Hashes, and the Risk of Internet-Exposed FortiGate Devices

A widespread issue dubbed FortiBleed has been reported, involving the large-scale exposure and abuse of credentials targeting internet-facing FortiGate devices. This problem stems from credential reuse and brute-force attacks, rather than a new vulnerability. The risk is particularly high for devices lacking multi-factor authentication or those with previously compromised credentials.