16 Apr, 2025

Fortinet: Hackers retain access to patched FortiGate VPNs using symlinks

Fortinet warns that threat actors use a post-exploitation technique that helps them maintain read-only access to previously compromised FortiGate VPN devices even after the original attack vector was patched. Earlier this week, Fortinet began sending emails to customers warning that their FortiGate/FortiOS devices were compromised based on telemetry received from FortiGuard devices. These emails were […]

3 mins read

Critical FortiSwitch flaw lets hackers change admin passwords remotely

Fortinet has released security patches for a critical vulnerability in its FortiSwitch devices that can be exploited to change administrator passwords remotely. The company says Daniel Rozeboom of the FortiSwitch web UI development team discovered the vulnerability (CVE-2024-48887) internally. Unauthenticated attackers can exploit this unverified FortiSwitch GUI password change security flaw (rated with a 9.8/10 […]

2 mins read

Fortinet discloses second firewall auth bypass patched in January

Furthermore, even though today’s updated advisory indicates that both flaws were exploited in attacks and even includes a workaround for the new CSF proxy requests exploitation pathway, Fortinet says that only CVE-2024-55591 was exploited. Fortinet told GeekFeed that if a customer previously upgraded based on the guidance in FG-IR-24-535 / CVE-2024-55591, then they are already protected against the […]

3 mins read

Hackers leak configs and VPN credentials for 15,000 FortiGate devices

A new hacking group has leaked the configuration files, IP addresses, and VPN credentials for over 15,000 FortiGate devices for free on the dark web, exposing a great deal of sensitive technical information to other cybercriminals. The data was leaked by the “Belsen Group,” a new hacking group first appearing on social media and cybercrime […]

3 mins read

Fortinet warns of auth bypass zero-day exploited to hijack firewalls

Attackers are exploiting a new authentication bypass zero-day vulnerability in FortiOS and FortiProxy to hijack Fortinet firewalls and breach enterprise networks. This security flaw (tracked as CVE-2024-55591) impacts FortiOS 7.0.0 through 7.0.16, FortiProxy 7.0.0 through 7.0.19, and FortiProxy 7.2.0 through 7.2.12. Successful exploitation allows remote attackers to gain super-admin privileges by making malicious requests to the […]

4 mins read

Fortinet warns of FortiWLM bug giving hackers admin privileges

Fortinet has disclosed a critical vulnerability in Fortinet Wireless Manager (FortiWLM) that allows remote attackers to take over devices by executing unauthorized code or commands through specially crafted web requests. FortiWLM is a centralized management tool for monitoring, managing, and optimizing wireless networks. It’s used by government agencies, healthcare organizations, educational institutions, and large enterprises. The […]

2 mins read

Chinese hackers exploit Fortinet VPN zero-day to steal credentials

Chinese threat actors use a custom post-exploitation toolkit named ‘DeepData’ to exploit a zero-day vulnerability in Fortinet’s FortiClient Windows VPN client that steal credentials. The zero-day allows the threat actors to dump the credentials from memory after the user authenticated with the VPN device Volexity researchers report that they discovered this flaw earlier this summer and […]

3 mins read

Fortinet warns of new critical FortiManager flaw used in zero-day attacks

Fortinet publicly disclosed today a critical FortiManager API vulnerability, tracked as CVE-2024-47575, that was exploited in zero-day attacks to steal sensitive files containing configurations, IP addresses, and credentials for managed devices. The company privately warned FortiManager customers about the flaw starting October 13th in advanced notification emails seen by GeekFeed that contained steps to mitigate the flaw […]

10 mins read

Fortinet confirms data breach after hacker claims to steal 440GB of files

Cybersecurity giant Fortinet has confirmed it suffered a data breach after a threat actor claimed to steal 440GB of files from the company’s Microsoft Sharepoint server. Fortinet is one of the largest cybersecurity companies in the world, selling secure networking products like firewalls, routers, and VPN devices. The company also offers SIEM, network management, and EDR/XDR […]

2 mins read