Port 19283Sassafras K2 License Server
Port 19283 is primarily used by Sassafras Software's K2 KeyServer and KeyAuditor, a comprehensive software asset management and license compliance tool. It facilitates real-time license management, usage tracking, and auditing across an organization's network, enabling administrators to ensure compliance and optimize software investments..
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 5/10
- lookups
- 8,840
2 transports registered
payload readable on path
registered with iana
caution
rank 566 of 993 · top 57%
Technical Details
what runs on :19283Sassafras Software’s K2 platform utilizes port 19283 to enable client-server communication for tracking software usage and enforcing licensing restrictions. The KeyServer component listens on this port to authenticate clients, distribute entitlements, and update license information in real-time. Typical deployment involves agents on endpoint devices that communicate periodically or during software launches, ensuring accurate monitoring of application usage.
K2 supports advanced features like granular usage reporting, concurrent license pooling, and policy enforcement. The platform’s design focuses on high scalability, allowing it to accommodate diverse and complex software environments, from small departments to large enterprises. Communication over port 19283 typically occurs over TCP for reliable session management, but UDP may also be used for lightweight or status update messages.
From a network perspective, port 19283 should be accessible between clients and the license server within the organization’s internal network. Internet exposure is uncommon and generally discouraged due to the sensitive nature of license and usage data. Administrators may configure access controls to limit which hosts may connect and ensure performance and security.
Security Information
exposure of :19283risk score
5/ 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 1.1 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
tcp · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
Common vulnerabilities related to port 19283 arise from improper access controls, leading to unauthorized usage or manipulation of licensing data. If the K2 service is exposed without proper network segmentation, it could be susceptible to brute-force attacks, spoofed licensing requests, or denial-of-service attempts disrupting license validation processes. Lack of encryption in communication might expose sensitive software asset information to interception or tampering.
Mitigations include restricting network access to trusted hosts via firewall rules and VPNs, ensuring the K2 service is not exposed to untrusted networks, and enabling authentication mechanisms. Regularly updating K2 software reduces risks from known vulnerabilities. Administrators should monitor logs for unusual access patterns and consider network segmentation to isolate the license server. Where supported, deploying transport encryption such as TLS can further protect communication confidentiality and integrity.
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