Port 5357 Hacktricks [work] [ Recommended - FIX ]

Printer names, hostnames, and network paths.

Ensure the Windows Firewall is configured to only allow connections on port 5357 from the local network (LAN) and never from the public internet.

Port 5357: Deep Dive into WSDAPI and Network Discovery In modern Windows environments, port 5357 (TCP) is a frequently encountered service that often appears during internal network scans. While it is a standard component for device discovery, it can provide valuable information for penetration testers or present a security risk if mismanaged. What is Port 5357? port 5357 hacktricks

Regularly update Windows systems to mitigate legacy vulnerabilities like MS09-063.

The discovery process usually begins with a multicast message over . Once a device is discovered and a handshake is completed, further communication and data exchange move to TCP port 5357 (HTTP) or TCP port 5358 (HTTPS). Printer names, hostnames, and network paths

This allows applications like the Windows Print Spooler or Windows Fax and Scan to communicate directly with WSD-enabled hardware. Many network printers from manufacturers like , Brother , Canon , and Epson expose a WSD endpoint on this port by default. Penetration Testing and Information Leakage

If the machine is on a public network, disable "Network Discovery" in the Advanced sharing settings of the Control Panel. While it is a standard component for device

Port 5357 – WSDAPI (Web Services for Devices) - PentestPad