Port 5357 — Hacktricks //free\\

What (like 135, 445, or 3702) are open on this host?

Port 5357/tcp is one of those network services that often flies under the radar, yet for penetration testers, it can represent a gateway to deeper discovery and, in some cases, system compromise. While not as notorious as 445/SMB or 3389/RDP , understanding the service behind this port is a valuable asset in any security assessment.

In the world of network security, understanding the purpose and risks of open ports is fundamental. Port 5357 is a TCP port primarily associated with Microsoft's . This service is designed to streamline the automatic discovery and communication of network-enabled devices like printers, scanners, media servers, and IP cameras. port 5357 hacktricks

When you encounter port 5357 open during an internal engagement, your primary goal is to gather information about the host, operating system version, and device type. Nmap Scanning

WS-Discovery endpoints often expose specific UUIDs or long strings as paths. You can utilize tools like ffuf or Gobuster paired with specialized wordlists to find active endpoints under this port, though standard wordlists may yield limited results due to the dynamic nature of WS-Discovery URLs. 3. Potential Attack Vectors and Exploitation What (like 135, 445, or 3702) are open on this host

When Windows detects other computers or devices (like printers) on the network, it often interacts through this endpoint to fetch XML-based metadata about the host capability. 2. Enumeration and Information Gathering

Port 5357 – WSDAPI (Web Services for Devices) - PentestPad In the world of network security, understanding the

This forces TARGET-50 (WSD-enabled printer server) to authenticate to your machine on SMB.

Often, the service returns Microsoft-HTTPAPI/2.0 .

Get-CimInstance -Namespace root\cimv2 -ClassName Win32_PnPEntity | Where-Object $_.Caption -match "WSD" Use code with caution. 5. Mitigation and Hardening