known port assignments and vulnerabilities
threat/application/port search:
| Port(s) | Protocol | Service | Details | Source |
|---|
| 5672 | tcp,udp,sctp | amqp | MOHAA Reverend SolarWinds Server & Application Monitor (SAM) uses the following ports:
4369TCP - RabbitMQ messaging (EMPD)
5671 TCP - RabbitMQ messaging (AMQP over TLS/SSL)
5672 TCP - RabbitMQ messaging (AMQP unencrypted backup port)
17777 TCP - Orion module traffic, RSA handshake, AES 256 communication using WCF
17778 TCP - SolarWinds Information Service API
17779 TCP - SolarWinds Toolset Integration over HTTP
17790 TCP - Agent communication with the Orion server
17791 TCP - Agent communication with the Orion server
25672 TCP - RabbitMQ messaging (Erlang distribution)
SolarWinds also uses the following standard ports: 22/TCP, 25/TCP, 135/TCP, 161-162/UDP, 443/TCP, 445/TCP, 465/TCP, 587/TCP, 1801/TCP Zulip, an open-source team collaboration tool. Zulip Server installs RabbitMQ for internal message passing. In versions of Zulip Server prior to 4.9, the initial installation (until first reboot, or restart of RabbitMQ) does not successfully limit the default ports which RabbitMQ opens; this includes port 25672, the RabbitMQ distribution port, which is used as a management port. RabbitMQ's default "cookie" which protects this port is generated using a weak PRNG, which limits the entropy of the password to at most 36 bits; in practicality, the seed for the randomizer is biased, resulting in approximately 20 bits of entropy. If other firewalls (at the OS or network level) do not protect port 25672, a remote attacker can brute-force the 20 bits of entropy in the "cookie" and leverage it for arbitrary execution of code as the rabbitmq user. They can also read all data which is sent through RabbitMQ, which includes all message traffic sent by users. Version 4.9 contains a patch for this vulnerability. As a workaround, ensure that firewalls prevent access to ports 5672 and 25672 from outside the Zulip server.
References: [CVE-2021-43799] Advanced Message Queueing Protocol, see http://www.amqp.org (IANA official) | SG |
| 5672 | tcp,udp | amqp | AMQP, registered 2006-01 | IANA |
| 5672 | sctp | amqp | AMQP, registered 2007-03 | IANA |
| 5500-5699 | tcp | applications | MOHAA Reverend | Portforward |
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Related ports: 5671 17777 17790 25672
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External Resources
SANS ISC: port 5672
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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FAQs
AMQP assigned port number is 5672 or 5671 for AMQPS (TLS/SSL encrypted AMQP). AMQP stands for Advanced Message Queuing Protocol, and it is an open standard application layer protocol.
Is RabbitMQ port 5672 or 15672? ›
By default, RabbitMQ will listen on port 5672 on all available interfaces.
Is AMQP a TCP or UDP? ›
Protocol is currently defined to use TCP as its transport protocol.
Is port 5671 TCP or UDP? ›
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Transport Protocol |
|---|
| amqps | 5671 | tcp |
| amqps | 5671 | udp |
| amqp | 5672 | tcp |
| amqp | 5672 | udp |
1 more rowAMQP is an application layer protocol that is an open standard for messaging middleware. It features message orientation, routing, queuing, security, and reliability. MQTT is a lightweight machine-to-machine network protocol that uses a publish-subscribe model for message queuing.
What is RabbitMQ used for? ›
RabbitMQ acts as a mediator between producers of messages and consumers who receive and process those messages. It facilitates the communication between different components of an application by enabling asynchronous messaging and decoupling the sender and receiver.
What protocol is RabbitMQ? ›
AMQP 0-9-1 is the protocol used by RabbitMQ tutorials.
What protocol to connect to RabbitMQ? ›
RabbitMQ supports several protocols:
- AMQP 0-9-1 with extensions.
- AMQP 1.0.
- RabbitMQ Stream Protocol.
- MQTT 3.1 through 5.0.
- STOMP 1.0 through 1.2.
Troubleshooting Network Connectivity
- Verify client configuration.
- Verify server configuration using rabbitmq-diagnostics listeners , rabbitmq-diagnostics status , rabbitmq-diagnostics environment.
- Inspect server logs.
- Verify hostname resolution.
- Verify what TCP port are used and their accessibility.
- Verify IP routing.
RabbitMQ is a good choice for applications that require durable messaging, while Kafka is a good choice for applications that require high throughput and low latency. AMQP is a good choice for applications that require interoperability between multiple platforms and technologies.
Kafka uses the binary protocol over TCP to stream messages across real-time data pipelines, while RabbitMQ supports Advanced Message Queuing Protocol (AMQP) by default.
Who uses AMQP? ›
In addition to the Banking and Finance Industries, AMQP is also being used to connect hundreds of critical systems in Telecommunications, Defense, Manufacturing, Internet and Cloud Computing, and many additional market segments.
What is port 5672 used for? ›
Port 5672 was the old port used for non-SSL communication (no longer used). The GSTD connects to RabbitMQ to get and display NMC information using port 5671.
How do I know if my port is TCP or UDP? ›
netstat -a : This will display all connections and listening ports. netstat -t : Displays only TCP connections. netstat -u : Used to display only UDP connections.
What does a listener port do? ›
The Listening Ports section of the Network tab gives you information about the services and processes on your system that are waiting to service network requests. These services are listening on either a TCP or a User Datagram Protocol (udp) port.
What is the RabbitMQ protocol? ›
RabbitMQ is an open-source message-broker software (sometimes called message-oriented middleware) that originally implemented the Advanced Message Queuing Protocol (AMQP) and has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol (STOMP), MQ Telemetry Transport (MQTT), ...
What type of connection is RabbitMQ? ›
All protocols supported by RabbitMQ are TCP-based and assume long-lived connections (a new connection is not opened per protocol operation) for efficiency. One client library connection uses a single TCP connection.
Why TCP is used in BGP? ›
BGP uses TCP port 179 to communicate with other routers. TCP allows for handling of fragmentation, sequencing, and reliability (acknowledgement and retransmission) of communication packets.
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