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Attacker leaked thousands of Fortinet VPN accounts


By MYBRANDBOOK


Attacker leaked thousands of Fortinet VPN accounts

Fortinet has warned that 87,000 credentials for FortiGate SSL VPN devices have been released online. The company said that it is aware of the disclosure and, after investigating the incident, has concluded that the credentials were obtained through the exploitation of CVE-2018-13379. It is a known security vulnerability affecting the FortiOS SSL VPN web tunnel software portal. According to BleepingComputer, a threat actor known as Orange – the administrator of the newly launched RAMP hacking forum and a previous operator of the Babuk ransomware operation – was behind the leak of Fortinet credentials.

 

According to analysis done by Advanced Intel, the IP addresses are for devices worldwide. As the chart below shows, there are 22,500 victimized entities located in 74 countries, with 2,959 of them being located in the US.

 

Using the leaked VPN credentials, attackers can perform data exfiltration, install malware and launch ransomware attacks.

 

The bug, which recently made it to the Cybersecurity and Infrastructure Security Agency’s (CISA’s) list of the top 30 most-exploited flaws, lets an unauthenticated attacker use specially crafted HTTP resource requests in order to download system files under the SSL VPN web portal.

 

Fortinet fixed the glitch in a May 2019 update (and has since then repeatedly urged customers to upgrade their devices to FortiOS 5.4.13, 5.6.14, 6.0.11, or 6.2.8 and above). But even if security teams patched their VPNs, if they didn’t also reset the devices’ passwords at the same time, the VPNs still might be vulnerable.

 

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