Port 5357 Hacktricks !full! -

WS-Discovery functions via specific UUID-based paths. Attackers look for active endpoints using directory brute-forcing tools like gobuster or feroxbuster , although standard wordlists rarely contain WSD UUIDs.

If you need specific commands, exploitation scenarios, or detailed enumeration steps for port 5357 as documented in HackTricks, I recommend checking the website directly or searching within their content.

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

A typical result reveals the Microsoft HTTPAPI httpd server: port 5357 hacktricks

From a penetration testing perspective, while it rarely offers direct remote code execution (RCE) on its own, it is an excellent source of network reconnaissance and can occasionally be abused for external entity attacks or NTLM relaying. 1. Protocol Overview

Elena scanned the IP range. Most ports were what she expected: 443 for the web server, 22 for SSH (hardened, thankfully), and 139/445 for file sharing. But one port glowed like a red thumb on her Nmap output.

The machine on Port 5357 had just introduced itself. It wasn't just a workstation; LEDGER-DC01 was a Domain Controller. The most sensitive machine in the entire infrastructure, the keys to the kingdom, was responding to anonymous queries on a port that should have been firewalled. WS-Discovery functions via specific UUID-based paths

Port 5357 is utilized by Microsoft Windows for . It acts as an HTTP-based service (often managed by Microsoft-HTTPAPI/2.0 ) that allows Windows machines to automatically discover and interact with network-connected devices, such as: Printers and Scanners Network Attached Storage (NAS) IoT Devices

You're likely referring to the Port 5357, which is associated with the Windows SMB (Server Message Block) protocol, specifically for the "Key Management Service" (KMS) or Windows Activation. However, another notable usage of port 5357 is related to the SSDP (Simple Service Discovery Protocol) and UPnP (Universal Plug and Play) protocols, often exploited in IoT and network-related attacks.

HTTP/1.1 404 Not Found Content-Type: text/html; charset=us-ascii Server: Microsoft-HTTPAPI/2.0 Date: Wed, 03 Jun 2026 12:00:00 GMT Connection: close Content-Length: 315 Use code with caution. When you encounter port 5357 open during an

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: The service can leak metadata such as device hostnames, manufacturer details, and network paths. Attackers use this for fingerprinting

Do not run intrusive exploitation against systems you don’t own or have permission to test.

: While there are no widespread "one-click" exploits for Port 5357 itself, it increases the target's attack surface by confirming the operating system and potentially leaking internal metadata about connected hardware.