(Pwn2Own) Phoenix Contact CHARX SEC-3100 Missing Encryption Authentication Bypass Vulnerability

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Phoenix Contact CHARX SEC-3100 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of nginx. The issue results from a lack of encryption. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the user-app account.