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Port 5555 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
5555 tcp ms-crm SoftEther VPN (Ethernet over HTTPS) uses TCP Ports 443, 992 and 5555

Port also used by Freeciv gaming protocol. , InfoSeek Personal Agent, HP OpenView Storage Data Protector (formerly HP OmniBack)

RainMachine automatic irrigation control uses this port.

ShoreTel IP Telephony system uses the following ports
2427 UDP - IP phones listening port
2727 UDP - switches listening port
5004 UDP - voice packets
5440 TCP - HTTP CSIS, 5440 UDP - Location Service Protocol
5441 UDP - ShoreSIP
5442, 5446 UDP - DRS
5443, 5444, 5445 UDP - Bandwidth Reservation Protocol
5447, 5449, 5469 TCP - CAS & web proxy
5555 TCP - Shoreline diagnostic port (ipbxctl –diag)


Backdoor.Darkmoon.E [Symantec-2007-092515-0356-99] (2007.09.25) - a Trojan horse that opens a back door on TCP port 5555 on the compromised computer.

Some other trojans also use this port Backdoor.Sysbug [Symantec-2003-112517-2455-99], Noxcape, W32.MiMail.P, Daodan, Backdoor.OptixPro, ServeMe.

HP OpenView OmniBack 2.55 allows remote attackers to cause a denial of service via a large number of connections to port 5555.
References: [CVE-2000-0179] [BID-1015]

The Backup Client Service (OmniInet.exe) in HP Storage Data Protector 6.2X allows remote attackers to execute arbitrary commands or cause a denial of service via a crafted EXEC_BAR packet to TCP port 5555, aka ZDI-CAN-1885.
References: [CVE-2013-2347] [OSVDB-101626]

HP Data Protector could allow a remote attacker to execute arbitrary commands on the system. By sending a specially-crafted request to TCP port 5555, an attacker could exploit this vulnerability to execute arbitrary commands on the system.
References: [CVE-2014-2623] [XFDB-94504]

KDDI CORPORATION Smart TV Box could allow a remote attacker to bypass security restrictions, caused by the failure to restrict access by the Android Debug Bridge. By using port 5555/TCP, an attacker could exploit this vulnerability to conduct arbitrary operations on the device without user's intent.
References: [CVE-2019-6005], [XFDB-165762]

Jector Smart TV FM-K75 could allow a remote attacker to execute arbitrary code on the system. By using an adb connect to 5555 port, an attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.
References: [CVE-2019-9871], [XFDB-162056]

Microsoft Dynamics CRM 4.0. (IANA official)
SG
5555 tcp Freeciv versions up to 2.0, Hewlett Packard Data Protector, SAP (unofficial) Wikipedia
5555 tcp trojan Daodan, NoXcape Trojans
5555 udp trojan Daodan Trojans
5555 tcp,udp personal-agent Personal Agent SANS
5555 tcp ServeMe [trojan] ServeMe SANS
5555 udp rplay SANS
5555,6500 udp applications Rush for Berlin Portforward
3390,3932,5555 tcp applications XBox 360 Media Center Portforward
5555 tcp freeciv freeciv Nmap
5555 udp rplay rplay Nmap
5555 udp sbm-comm SGI Space Boulders game Neophasis
5555 tcp threat OptixPro Bekkoame
5555 tcp threat Sysbug Bekkoame
5555 tcp,udp personal-agent Personal Agent. Known UNAUTHORIZED USEs on port 5555 IANA
5500-5699 tcp applications MOHAA Reverend Portforward
16 records found
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Related ports: 443  992  2427  2727  5004  5440  5447  

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External Resources
SANS Internet Storm Center: port 5555

Notes:
Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. 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. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates 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 and realtime gaming, 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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by quILdoUS - 2018-06-12 19:48
Some Android devices have that port open for the Android Debug Bridge (ADB for short)

https://doublepulsar.com/root-bridge-how-thousands-of-internet-connected-android-devices-now-have-no-security-and-are-b46a68cb0f20
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