Port 5357 Hacktricks (2026 Release)

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 is primarily used by the , which is Microsoft's implementation of the WS-Discovery protocol. Its core function is to allow devices on a local network—such as printers, scanners, and file shares—to advertise their presence and discover one another without the need for manual configuration or a central server. Service Name: http Protocol: TCP (typically) Associated Port: 5358 (often used as the HTTPS counterpart)

A stack-based buffer overflow vulnerability. Attackers could send a crafted WS-Discovery message with an overly long "MIME-Version" string to execute arbitrary code with service-level privileges. port 5357 hacktricks

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?

From a security perspective, port 5357 is often scrutinized for potential information leakage. Even without active exploitation, an open port 5357 can disclose: Ensure the Windows Firewall is configured to only

While primarily an SMBv3 vulnerability, some research has linked WSD-exposed interfaces to broader exploit chains in similar network discovery contexts. Detection and Mitigation

To verify if port 5357 is active on a machine, administrators can use the following command in a Windows Command Prompt: netstat -abno | findstr 5357 Recommended Security Measures While it is a standard component for device

Exposed printer admin pages may allow attackers to intercept print jobs or move through the network. Notable Vulnerabilities

Details about the operating system and service versions.

Printer names, hostnames, and network paths.