Apr 11, 2025Ravie LakshmananNetwork Security / Vulnerability Fortinet has revealed that threat actors have found a way to maintain read-only access to vulnerable FortiGate devices even after the initial access vector used to breach the devices was patched. The attackers are believed to have leveraged known and now-patched security flaws, including, but not limited to, … [Read more...] about Fortinet Warns Attackers Retain FortiGate Access Post-Patching via SSL-VPN Symlink Exploit
Fortinet
Fortinet Urges FortiSwitch Upgrades to Patch Critical Admin Password Change Flaw
Apr 08, 2025Ravie LakshmananNetwork Security / Vulnerability Fortinet has released security updates to address a critical security flaw impacting FortiSwitch that could permit an attacker to make unauthorized password changes. The vulnerability, tracked as CVE-2024-48887, carries a CVSS score of 9.3 out of a maximum of 10.0. "An unverified password change vulnerability … [Read more...] about Fortinet Urges FortiSwitch Upgrades to Patch Critical Admin Password Change Flaw
DEEPDATA Malware Exploiting Unpatched Fortinet Flaw to Steal VPN Credentials
A threat actor known as BrazenBamboo has exploited an unresolved security flaw in Fortinet's FortiClient for Windows to extract VPN credentials as part of a modular framework called DEEPDATA. Volexity, which disclosed the findings Friday, said it identified the zero-day exploitation of the credential disclosure vulnerability in July 2024, describing BrazenBamboo as the … [Read more...] about DEEPDATA Malware Exploiting Unpatched Fortinet Flaw to Steal VPN Credentials
Chinese Hackers Exploit Fortinet Zero-Day Flaw for Cyber Espionage Attack
Mar 18, 2023Ravie LakshmananNetwork Security / Cyber Espionage The zero-day exploitation of a now-patched medium-severity security flaw in the Fortinet FortiOS operating system has been linked to a suspected Chinese hacking group. Threat intelligence firm Mandiant, which made the attribution, said the activity cluster is part of a broader campaign designed to deploy backdoors … [Read more...] about Chinese Hackers Exploit Fortinet Zero-Day Flaw for Cyber Espionage Attack
Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities
Mar 14, 2023Ravie LakshmananNetwork Security / Cyber Attack Government entities and large organizations have been targeted by an unknown threat actor by exploiting a security flaw in Fortinet FortiOS software to result in data loss and OS and file corruption. "The complexity of the exploit suggests an advanced actor and that it is highly targeted at governmental or … [Read more...] about Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities
Fortinet Issues Patches for 40 Flaws Affecting FortiWeb, FortiOS, FortiOS, and FortiProxy
Feb 19, 2023Ravie LakshmananNetwork Security / Firewall Fortinet has released security updates to address 40 vulnerabilities in its software lineup, including FortiWeb, FortiOS, FortiNAS, and FortiProxy, among others. Two of the 40 flaws are rated Critical, 15 are rated High, 22 are rated Medium, and one is rated Low in severity. Top of the list is a severe bug residing in … [Read more...] about Fortinet Issues Patches for 40 Flaws Affecting FortiWeb, FortiOS, FortiOS, and FortiProxy
Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware
Jan 20, 2023Ravie LakshmananFirewall / Network Security A suspected China-nexus threat actor exploited a recently patched vulnerability in Fortinet FortiOS SSL-VPN as a zero-day in attacks targeting a European government entity and a managed service provider (MSP) located in Africa. Telemetry evidence gathered by Google-owned Mandiant indicates that the exploitation occurred … [Read more...] about Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware
Fortinet and Zoho Urge Customers to Patch Enterprise Software Vulnerabilities
Jan 05, 2023Ravie LakshmananApplication Security / SQLi Fortinet has warned of a high-severity flaw affecting multiple versions of FortiADC application delivery controller that could lead to the execution of arbitrary code. "An improper neutralization of special elements used in an OS command vulnerability in FortiADC may allow an authenticated attacker with access to the web … [Read more...] about Fortinet and Zoho Urge Customers to Patch Enterprise Software Vulnerabilities
Fortinet Warns of New Auth Bypass Flaw Affecting FortiGate and FortiProxy
Fortinet has privately warned its customers of a security flaw affecting FortiGate firewalls and FortiProxy web proxies that could potentially allow an attacker to perform unauthorized actions on susceptible devices. Tracked as CVE-2022-40684, the high-severity flaw relates to an authentication bypass vulnerability that could permit an unauthenticated adversary to perform … [Read more...] about Fortinet Warns of New Auth Bypass Flaw Affecting FortiGate and FortiProxy
U.S., U.K. and Australia Warn of Iranian Hackers Exploiting Microsoft, Fortinet Flaws
Cybersecurity agencies from Australia, the U.K., and the U.S. on Wednesday released a joint advisory warning of active exploitation of Fortinet and Microsoft Exchange ProxyShell vulnerabilities by Iranian state-sponsored actors to gain initial access to vulnerable systems for follow-on activities, including data exfiltration and ransomware. The threat actor is believed to have … [Read more...] about U.S., U.K. and Australia Warn of Iranian Hackers Exploiting Microsoft, Fortinet Flaws