Port 3527MSMQ
Microsoft Message Queuing (MSMQ) is a messaging protocol developed by Microsoft that enables applications running on separate servers and processes to communicate in a fail-safe manner. By utilizing message queues, MSMQ facilitates reliable asynchronous communication between distributed applications, allowing messages to be sent even if the receiving application is not immediately available..
- transport
- udp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 7,318
single transport
payload readable on path
registered with iana
caution
rank 702 of 993 · top 71%
Technical Details
what runs on :3527Overview
Microsoft Message Queuing (MSMQ) is a message-oriented middleware service available on the Windows platform. It allows applications to communicate with each other across heterogeneous networks by sending messages to queues that can be read asynchronously by the receiving applications. MSMQ enables separation between application operations and improves system robustness through decoupling.
Protocols and Ports
MSMQ uses a variety of protocols for communication, including native MSMQ, HTTP, and SOAP. Port 3527 is notably used for UDP-based operations such as message discovery and notifications. The system supports transactional messaging to ensure reliable delivery and exactly-once semantics when needed.
Deployment and Use Cases
Typical use cases include reliable inter-process and inter-server communication, queuing jobs for later execution, decoupling microservices, and handling load spikes gracefully. MSMQ is particularly useful in complex distributed enterprise environments where communication continuity is paramount, even in the face of system outages.
Security Information
exposure of :3527risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
network services averages 3.9 across 604 ports — this one sits 0.1 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
Common Vulnerabilities
- Denial of Service (DoS): Attackers can potentially flood MSMQ UDP ports with malicious traffic, leading to service interruption.
- Replay Attacks: Without encryption and integrity checks, intercepted messages might be resent to initiate unauthorized actions.
- Unauthorized Access: Improperly configured permissions may allow malicious actors to read, inject, or delete messages.
Common Mitigations
- Network Segmentation: Restrict UDP port 3527 access to trusted hosts through firewall rules.
- Use of Authentication: Configure MSMQ to require authentication and enable access controls.
- Enable Encryption: Where supported, enable message-level encryption to protect confidentiality and integrity.
- Monitoring and Logging: Regularly audit logs for suspicious activity on MSMQ ports.
- Patch Management: Keep MSMQ and underlying Windows systems updated to mitigate known vulnerabilities.
Related Ports
the 8 most looked-up other ports in network services — 604 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :9080 | Groove RPC | TCPUDP | Web Services | caution | 70.8k |
| :6543 | Jetnet | UDP | Network Services | caution | 65.3k |
| :5938 | TeamViewer | TCPUDP | Remote Access | caution | 65.0k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :3233 | WhiskerControl Protocol | TCPUDP | Network Services | caution | 61.9k |
| :3268 | Microsoft Global Catalog (GC) | TCPUDP | Security | caution | 54.6k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :3128 | Tatsoft Default HTTP Proxy | TCP | Web Services | caution | 46.8k |
risk mix of the 8 listed
- caution100%
0 of 8 encrypted