Port 5357 is used by the Web Services for Devices (WSD) API — a Microsoft implementation that allows networked devices (printers, scanners, cameras, IoT appliances) and Windows hosts to discover and communicate with each other over HTTP-like endpoints. Because WSD exposes device management and discovery functionality, misconfigured or exposed WSD endpoints can reveal device information, let administrators or services be manipulated remotely, or provide an entry point for lateral movement.
When you encounter port 5357, the first step is to confirm the service and identify potential information leaks. 1. Nmap Service Detection port 5357 hacktricks
WSDAPI is Microsoft's implementation of the WS-Discovery protocol. It allows Windows machines to automatically discover and communicate with network-connected devices like printers, scanners, and file shares without manual configuration. Port 5357 (TCP): Used for HTTP-based communication. Port 5358 (TCP): Used for HTTPS-based communication. Port 3702 (UDP): Used for multicast discovery. Reconnaissance & Enumeration Port 5357: What it is and why attackers
Port 5357 – WSDAPI (Web Services for Devices) - PentestPad Remember: in red teaming, every open port is
Expected Output: 5357/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP). 2. Information Disclosure
Remember: in red teaming, every open port is a story waiting to be exploited.