Port 5357 Hacktricks [patched]

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

: Most secure or default configurations will return a 404 Not Found or 400 Bad Request error for the root directory. However, the server header ( Server: Microsoft-HTTPAPI/2.0 ) confirms the presence of a Windows host utilizing the HTTP protocol stack ( http.sys ). URL Path Brute Forcing

It is essential to know that legitimate services are not the only ones using port 5357.

WSD can leak metadata including hostnames, device models (e.g., printer types), network paths, and unique device identifiers (GUIDs). port 5357 hacktricks

The raw service probe returns a specific signature referencing Microsoft's internal HTTP daemon engine:

If network discovery features are not explicitly required (common in secure enterprise environments), disable the underlying services.

HackTricks often notes that port 5357 may be: WS-Discovery endpoints often expose specific UUIDs or long

Because this service relies heavily on the core Windows network stack, applying monthly cumulative Microsoft quality updates ensures that any newly discovered vulnerabilities in http.sys or the WSD API are neutralized before exploitation can occur.

WSD provides a network "Plug and Play" experience. It allows a Windows computer to automatically detect and interact with a WSD-compatible printer as if it were connected via USB, without needing to install custom drivers or manually configure IP addresses. This is achieved through HTTP (port 5357), HTTPS (port 5358), and multicast discovery (UDP port 3702).

Port 5357 is commonly utilized by Microsoft Windows operating systems for Web Services Dynamic Discovery (WS-Discovery). This protocol allows devices to automatically discover web-based services on a local network. During a security assessment or penetration test, encountering this open port can provide valuable information about the target host or serve as an entry point for further network exploitation. Potential Attack Vectors and Exploitation : Most secure

Review a list of commonly targeted alongside 5357?

Ensure the Windows Firewall is active to restrict connections to the local network (LAN) only, preventing exposure to wider network segments. Patch Management:

To help tailor this guide to your specific security assessment, let me know: