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Port 6000 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
6000 tcp trojan Port used by W32.LoveGate.ak mass-mailing worm. Uses its own SMTP engine. Affects Windows 2000, Windows NT, Windows Server 2003, Windows XP

The IBM TotalStorage DS400 with firmware 4.15 uses a blank password for the root, user, manager, administrator, and operator accounts, which allows remote attackers to gain login access via certain Linux daemons, including a telnet daemon on a nonstandard port, tcp/6000.
References: [CVE-2007-3232] [BID-24452]

XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000.
References: [CVE-2000-0453] [BID-1235]

The Xper Connect broker listens to Port 6000/TCP by default. By sending an HTTP request outside the bounds of the buffer to Port 6000/TCP, an attacker can cause a heap-based buffer resulting in loss of confidentiality, integrity, and availability.
References: [CVE-2013-2808], [SECUNIA-55152]

Trojans using this port: The Thing, Aladino, NetBus, APStrojan.
6000 udp games Burnout Paradise (PS3), developer: Criterion Games SG
6000 tcp X11 - used between an X client and server over the network (official) Wikipedia
6000 tcp trojan Aladino, NetBus , The Thing Trojans
6000-6063 tcp,udp x11 X Windows System IANA
6000 tcp TheThing [trojan] The Thing SANS
6000 tcp,udp x11 X Window System SANS
6000 tcp applications Army of Two PS3 Portforward
1024,6000 udp applications Everquest Portforward
3658,3659,6000 udp applications Goldeneye Rogue Agent Portforward
1795,1797,3658,6000 udp applications Madden NFL 2005 Portforward
3658,3659,6000,6001 tcp applications Medal of Honor Rising Sun Portforward
50000, 6000-7000, 10070-10080 udp applications Sony Playstation 3 Portforward
3658,6000-6001 udp applications SSX 3 Portforward
69, 5060, 6000-6006, 6010-6016, 6020-6026, 6030-6036 udp applications TalkSwitch Portforward
6000 tcp X11 X Window server Nmap
6000 udp X11 X11 Nmap
6000 tcp threat Lovgate Bekkoame
18 records found
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Related ports: 3659  

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External Resources
SANS Internet Storm Center: port 6000

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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