Fortinet Warns of Active Exploitation of FortiOS SSL VPN 2FA Bypass Vulnerability
Fortinet on Wednesday said it observed "recent abuse" of a five-year-old security flaw in FortiOS SSL VPN in the wild under certain configurations
Stay updated on the latest bypass techniques threatening information security. Discover defenses and trends in system vulnerabilities with our insights.
Search across headline titles and summaries.
Background for this topic.
Bypass describes attacker methods that circumvent specific security controls, such as authentication checks, input validation, or detection systems, without directly exploiting the underlying vulnerability. These techniques often leverage design flaws, misconfigurations, or protocol weaknesses to evade protections like firewalls, multi-factor authentication, or antivirus scanning.
Bypassing controls can enable unauthorized access, data exfiltration, or persistent presence while avoiding alerts, complicating detection and response. Effective defense requires layered security measures, rigorous configuration management, and continuous validation of control effectiveness to identify and close bypass paths before attackers exploit them.
Fortinet on Wednesday said it observed "recent abuse" of a five-year-old security flaw in FortiOS SSL VPN in the wild under certain configurations
Cybersecurity researchers have discovered a new variant of a macOS information stealer called MacSync that's delivered by means of a digitally signed, notarized Swift application masquerading as a messaging app installer to bypass Apple's Gatekeeper checks