Internet UDP port 1900 is primarily used by the Simple Service Discovery Protocol (SSDP), which is a part of the Universal Plug and Play (UPnP) protocol standard. This protocol allows devices on a network to discover each other and automatically establish working configurations. Examples of software that use this port include media servers, smart TVs, and game consoles that need to connect and communicate over a network. Additionally, some routers and networked printers may also use this port for device discovery and communication.
UDP port 1900 is associated with the Simple Service Discovery Protocol (SSDP), which is used by Universal Plug and Play (UPnP) devices to discover each other on a network. In the past, hackers have exploited this port to perform Distributed Reflection Denial of Service (DRDoS) attacks. They send a large number of SSDP requests to port 1900 with a spoofed IP address, causing the devices to send responses to the spoofed IP, overwhelming the target system. Additionally, hackers have exploited vulnerabilities in UPnP implementations to gain unauthorized access to systems. This port can also be used for network scanning, allowing hackers to identify potential targets. Therefore, it's crucial to secure this port to prevent potential attacks.
