BRIDGE:BREAK Flaws Plague Lantronix and Silex Serial-to-IP Converters

Forescout Research Vedere Labs has uncovered 22 critical vulnerabilities, collectively named BRIDGE:BREAK, impacting Lantronix and Silex serial-to-IP converters. These devices, crucial for bridging legacy serial devices to modern IP networks, are now exposed. The research identified nearly 20,000 such converters publicly accessible online, creating a vast attack surface.

Exploitation of BRIDGE:BREAK flaws could allow attackers to seize control of these converters, potentially leading to data tampering or network infiltration. This poses a significant risk in environments where these devices manage sensitive industrial control systems (ICS), building automation, or other critical infrastructure components where serial communication is still prevalent.

Defenders must prioritize identifying and securing these exposed serial-to-IP converters. This includes patching affected devices immediately if vendor updates are available, and implementing network segmentation to isolate them from critical internal systems. Limiting external access and monitoring network traffic for unusual activity targeting these devices is paramount.