Network Device Authentication Bypass via SSH Key

Darshan Thummar@Mighty

•updated Jun 11, 2026•0•0•4

This rule detects a potential network device authentication bypass attempt via SSH. Specifically, it looks for SSH traffic (port 22) directed to the home network that contains the strings "aaa authentication" and "none" (case-insensitive). This combination suggests a configuration where authentication, authorization, and accounting (AAA) is set to 'none', which could allow unauthorized access.