Key facts
- Tens of thousands of Fortinet firewalls and VPNs have been compromised globally.
- The hacking campaign, FortiBleed, exploits weak or reused passwords, not unknown vulnerabilities.
- Hackers use automated scanning and known credential lists to gain access.
- Compromised devices are used to monitor traffic and steal further credentials.
- Over 73,000 Fortinet URLs were found to be hacked by Hudson Rock.
- Victims include major companies across various sectors and government agencies.
Cybercriminals have compromised tens of thousands of Fortinet firewalls and VPNs used by major companies worldwide in an ongoing campaign dubbed FortiBleed. Cybersecurity firms Hudson Rock and SOCRadar reported that the attackers are not exploiting unknown vulnerabilities but rather leveraging lists of previously known passwords to gain access to devices. This method involves scanning the internet for exposed Fortinet devices and then using common or leaked credentials to breach them.
Once inside, the cybercriminals use the compromised devices as a "listening post" to monitor network traffic and steal additional sensitive data, including more credentials. These newly acquired passwords are then fed back into the scanning process, creating a self-perpetuating cycle of compromise. Hudson Rock identified evidence of over 73,000 unique Fortinet URLs being hacked, while SOCRadar reported more than 30,000 compromised devices.
Victims include prominent companies such as Accenture, Comcast, Foxconn, Lenovo, Oracle, Samsung, Siemens, and PwC. The countries most affected are India, the United States, Taiwan, and Mexico, though victims are spread globally. The primary industries impacted are IT services, construction materials, and telecommunications, with government agencies also falling prey to the attacks. Both cybersecurity firms suggest the group behind the campaign is Russian-speaking.
This campaign differs from previous attacks on Fortinet devices, which often involved exploiting specific software vulnerabilities. The FortiBleed campaign relies on a simpler, less sophisticated approach of using leaked passwords, highlighting a persistent cybersecurity challenge for organizations worldwide.
