5357 Hacktricks — Port

Restrict access to Port 5357 so that it cannot be reached from outside the local subnet or untrusted zones: Block Port 5357 inbound at the perimeter firewall.

:Identify the specific version of the HTTP server running on the port. nmap -sV -p 5357 Use code with caution. Copied to clipboard

You can test for this vulnerability by sending a request with a large byte range. If the server responds with "Requested Range Not Satisfiable", it might be patched. If it crashes or returns a 500 error, it may be vulnerable.

Penetration testers and hackers often target this port for the following reasons: Information Disclosure/Reconnaissance: port 5357 hacktricks

WS-Discovery uses Port 5357 over HTTP ( http:// :5357/ ) to facilitate local resource discovery. It is tightly integrated with the Web Services on Devices (WSD) API in Windows. : TCP (HTTP-based)

On , this port is categorized under 5357 - Pentesting WS-Discovery. Key Takeaways for Port 5357 Service : Microsoft HTTPAPI httpd 2.0 (SSDP/WS-Discovery).

If an administrative tool or a secondary network service triggers a WSD synchronization to a malicious path, the target machine will attempt an NTLM handshake, allowing you to capture or relay the hash. SSRF and Local Port Pivoting Restrict access to Port 5357 so that it

Because port 5357 handles XML data structures, older or misconfigured implementations of Windows Communication Foundation (WCF) or WSDAPI may be susceptible to XML-based attacks.

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

Get-CimInstance -Namespace root\cimv2 -ClassName Win32_PnPEntity | Where-Object $_.Caption -match "WSD" Use code with caution. 5. Mitigation and Hardening Copied to clipboard You can test for this

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

Block port 5357 at the perimeter firewall. This port should never be exposed to the public internet.

: If this port is open, it strongly indicates the target is a Windows-based system (Vista or later) with network discovery enabled.

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

5357/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP) |_http-title: Service Unavailable Use code with caution.