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Port 4999 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
4999 tcp,udp trojans Backdoor.Ripjac (2002.11.21) - a backdoor trojan that allows a hacker to gain access to the infected computer. The presence of the file Synchost.exe is an indication of a possible infection. By default, the trojan opens port 4999 to allow the hacker to remotely control the infected computer.

Siemens SINEMA Server before 12 SP1 allows remote attackers to cause a denial of service (web-interface outage) via crafted HTTP requests to port 4999 or 80.
References: [CVE-2014-2733]

Siemens SIMATIC WinCC OA before 3.12 P002 January allows remote attackers to cause a denial of service (monitoring-service outage) via malformed HTTP requests to port 4999.
References: [CVE-2014-1697], [CVE-2014-1698], [CVE-2014-1699], [BID-65349], [OSVDB-102811], [SECUNIA-56651]

Multiple directory traversal vulnerabilities in the integrated web server in Siemens SINEMA Server before 12 SP1 allow remote attackers to access arbitrary files via HTTP traffic to port (1) 4999 or (2) 80.
References: [CVE-2014-2732]

Multiple unspecified vulnerabilities in the integrated web server in Siemens SINEMA Server before 12 SP1 allow remote attackers to execute arbitrary code via HTTP traffic to port (1) 4999 or (2) 80.
References: [CVE-2014-2731], [XFDB-92653], [BID-66968]
SG
4999 tcp,udp hfcs-manager Hyper File Client/Server Database Engine Manager IANA
1500-4999, 16567, 18060, 27900, 27901, 29900, 29910, 55123, 55124, 55215 udp applications Battlefield 2 Portforward
1024-1124, 1500-4999, 9964, 16567, 18300, 18510, 27900-27901, 28910, 29900, 55123 udp applications Battlefield 2142 Portforward
4990-4999 tcp,udp applications IPlay Portforward
4999 tcp,udp threat Ripjac Bekkoame
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External Resources
SANS Internet Storm Center: port 4999

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.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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