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Port 1900 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
1900 tcp,udp SSDP, UPnP IANA registered by Microsoft for SSDP (Simple Service Discovery Protocol).

UPnP discovery/SSDP, is a service that runs by default on WinXP, and creates an immediately exploitable security vulnerability for any network-connected system. Filtering this port proactively prevents XP systems from being remotely compromised by malicious worms or intruders.

See UPnP vulnerabilities (port 5000).

The Xerox Phaser 8400 allows remote attackers to cause a denial of service (reboot) via an empty UDP packet to port 1900.
References: [CVE-2008-3571], [BID-30522]

Multiple buffer overflows in LGSERVER.EXE in CA BrightStor ARCserve Backup for Laptops and Desktops r11.0 through r11.1 SP1, Mobile Backup r4.0, Desktop and Business Protection Suite r2, and Desktop Management Suite (DMS) r11.0 and r11.1 allow remote attackers to execute arbitrary code via crafted packets to TCP port 1900 or 2200.
References: [CVE-2007-0449]

Stack-based buffer overflow in the Universal Plug and Play (UPnP) service in D-Link DI-524, DI-604 Broadband Router, DI-624, D-Link DI-784, WBR-1310 Wireless G Router, WBR-2310 RangeBooster G Router, and EBR-2310 Ethernet Broadband Router allows remote attackers to execute arbitrary code via a long M-SEARCH request to UDP port 1900.
References: [CVE-2006-3687] [BID-19006] [SECUNIA-21081] [OSVDB-27333]
SG
1900 udp Microsoft SSDP Enables discovery of UPnP devices (official) Wikipedia
1900 tcp,udp ssdp SSDP IANA
1900,3776,7777 udp applications XBox 360 Media Center Portforward
1900 tcp,udp upnp Universal PnP Nmap
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Related ports: 2200  2869  5000  

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External Resources
SANS Internet Storm Center: port 1900

Notes:
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

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