Stay updated on the latest bypass techniques threatening information security. Discover defenses and trends in system vulnerabilities with our insights.
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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.
Over 10,000 Internet-exposed Fortinet firewalls are still vulnerable to attacks exploiting a five-year-old two-factor authentication (2FA) bypass vulnerability. [...]
IBM urged customers to patch a critical authentication bypass vulnerability in its API Connect enterprise platform that could allow attackers to access apps remotely. [...]
Fortinet has warned customers that threat actors are still actively exploiting a critical FortiOS vulnerability that allows them to bypass two-factor authentication (2FA) when targeting vulnerable FortiGate firewalls. [...]