Fortinet
Fortinet warns of FortiSIEM pre-auth RCE flaw with exploit in the wild
Fortinet is warning about a remote unauthenticated command injection flaw in FortiSIEM that has in-the-wild exploit code, making it critical for admins to apply the latest security updates. FortiSIEM is a central security monitoring and analytics system used for logging, network telemetry, and security incident alerts, serving as an integral part of security operation centers, where […]
Spike in Fortinet VPN brute-force attacks raises zero-day concerns
A massive spike in brute-force attacks targeted Fortinet SSL VPNs earlier this month, followed by a switch to FortiManager, marked a deliberate shift in targeting that has historically preceded new vulnerability disclosures. The campaign, detected by threat monitoring platform GreyNoise, manifested in two waves, on August 3 and August 5, with the second wave pivoting […]
Exploits for pre-auth Fortinet FortiWeb RCE flaw released, patch now
Proof-of-concept exploits have been released for a critical SQLi vulnerability in Fortinet FortiWeb that can be used to achieve pre-authenticated remote code execution on vulnerable servers. FortiWeb is a web application firewall (WAF), which is used to protect web applications from malicious HTTP traffic and threats. The FortiWeb vulnerability has a 9.8/10 severity score and is tracked […]
Critical Fortinet flaws now exploited in Qilin ransomware attacks
The Qilin ransomware operation has recently joined attacks exploiting two Fortinet vulnerabilities that allow bypassing authentication on vulnerable devices and executing malicious code remotely. Qilin (also tracked as Phantom Mantis) surfaced in August 2022 as a Ransomware-as-a-Service (RaaS) operation under the “Agenda” name and has since claimed responsibility for over 310 victims on its dark […]
Fortinet fixes critical zero-day exploited in FortiVoice attacks
Fortinet released security updates to patch a critical remote code execution vulnerability exploited as a zero-day in attacks targeting FortiVoice enterprise phone systems. The security flaw is a stack-based overflow vulnerability tracked as CVE-2025-32756 that also impacts FortiMail, FortiNDR, FortiRecorder, and FortiCamera. As the company explains in a security advisory issued on Tuesday, successful exploitation can allow […]
Over 16,000 Fortinet devices compromised with symlink backdoor
Over 16,000 internet-exposed Fortinet devices have been detected as compromised with a new symlink backdoor that allows read-only access to sensitive files on previously compromised devices. This exposure is being reported by threat monitoring platform The Shadowserver Foundation, which initially reported 14,000 devices were exposed. Today, Shadowserver’s Piotr Kijewski told GeekFeed that the cybersecurity organization […]
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 […]
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 […]
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 […]
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 […]