New Technique for Bypassing Network Access Control Using Linux Host

A new utility has been developed to bypass Network Access Control (NAC) by using a Linux host, such as a Raspberry Pi, as a transparent bridge. The device is placed between a workstation and a switch to maintain the authenticated connection while allowing an operator to pivot traffic through the victim’s access. The method aims to inject and receive network traffic without leaving a detectable footprint. The tool is available on GitHub for internal red team engagements and lab research.