(Pwn2Own) Phoenix Contact CHARX SEC-3150 Configuration Service Missing Authentication Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Phoenix Contact CHARX SEC-3150 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the configuration service, which listens on TCP port 5001 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the device.
Additional Details
Phoenix Contact has issued an update to correct this vulnerability. More details can be found at:
https://certvde.com/en/advisories/VDE-2025-019/
Disclosure Timeline
- 2025-03-04 - Vulnerability reported to vendor
- 2025-07-21 - Coordinated public release of advisory
- 2025-07-21 - Advisory Updated
Credit
HT3 Labs (@ht3labs)
