News Glossary of Terms FAQs Polls Cool Links SpeedGuide Teams SG Premium Services SG Gear Store
Registry Tweaks Broadband Tools Downloads/Patches Broadband Hardware SG Ports Database Security Default Passwords User Stories
Broadband Routers Wireless Firewalls / VPNs Software Hardware User Reviews
Broadband Security Editorials General User Articles Quick Reference
Broadband Forums General Discussions
Advertising Awards Link to us Server Statistics Helping SG About
The Broadband Guide
SG
search advanced
 Username:
 Password:
Register
 forgot your password?
The Roman Coins Catalog

Port 20000 Details


known port assignments and vulnerabilities
threat/application/port search:
 search
Port(s) Protocol Service Details Source
20000 tcp,udp dnp Distributed Network Protocol (DNP), frequently used in SCADA networks.
Ultimate Baseball Online Client uses ports 20000-22200 (UDP)
QuickTime Streaming Server 4 also uses ports 10000-20000 (TCP).

The DNP Master Driver in Software Toolbox TOP Server before 5.12.140.0 allows remote attackers to cause a denial of service (master-station infinite loop) via crafted DNP3 packets to TCP port 20000 and allows physically proximate attackers to cause a denial of service (master-station infinite loop) via crafted input over a serial line.
References: [CVE-2013-2804]

The Kepware DNP Master Driver for the KEPServerEX Communications Platform before 5.12.140.0 allows remote attackers to cause a denial of service (master-station infinite loop) via crafted DNP3 packets to
TCP port 20000 and allows physically proximate attackers to cause a denial of service (master-station infinite loop) via crafted input over a serial line.
References: [CVE-2013-2789]

The master-station DNP3 driver before driver19.exe, and Beta2041.exe, in IOServer allows remote attackers to cause a denial of service (infinite loop) via crafted DNP3 packets to TCP port 20000.
References: [CVE-2013-2790]

Trojans that use this port: Millenium, PSYcho Files, XHX
SG
20000 tcp,udp DNP (Distributed Network Protocol), a protocol used in SCADA systems between communicating RTU's and IED's (official) Wikipedia
20000 tcp,udp Usermin, Web-based user tool (unofficial) Wikipedia
20000 tcp trojan Millenium, PSYcho Files, XHX Trojans
20000 tcp,udp dnp DNP IANA
20000 tcp Millenium [trojan] Millenium SANS
20000 udp dnp DNP SANS
20000-20010 udp applications Cal Ripkens Real Baseball Portforward
20000-21000 udp applications Ground Control Portforward
15001, 15101, 15200, 20000-21000, 25451 tcp applications Ground Control Portforward
20000-21000 udp applications Ground Control with Chat Rooms Portforward
15001, 15101, 15200, 20000-21000, 25000-25499 tcp applications Ground Control with Chat Rooms Portforward
20000-20019 tcp applications ICQ Portforward
69,5060-5061,10000-20000 udp applications Viatalk Portforward
14 records found
jump to:
 go
previous next

Related ports: 20001  22200  

« back to SG Ports


External Resources
SANS Internet Storm Center: port 20000

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.

Please use the "Add Comment" button below to provide additional information or comments about port 20000.
  Post your review/comments
    rate:
   avg:
Print this document top