Port 1500NetGuard GuardianPro Remote Management
Port 1500 is typically used for remote management of NetGuard GuardianPro firewalls based on NT4 systems. This port facilitates administrative access, configuration management, and real-time monitoring of firewall status. Designed for legacy environments, it enables system administrators to remotely maintain security policies and respond to network events efficiently..
- transport
- tcp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 12,659
single transport
payload readable on path
used by convention
caution
rank 306 of 993 · top 31%
Technical Details
what runs on :1500Port 1500 has historically been associated with remote management interfaces of NetGuard GuardianPro firewalls running on Windows NT4. Administrators utilize this port over TCP to establish a management session, which allows them to configure rules, monitor network activity, and update firewall policies. The communication through this port typically involves proprietary protocols suited to the GuardianPro ecosystem.
The remote management service running on port 1500 listens for incoming connections on the firewall’s management interface. These connections grant privileged access for administrative tasks, which, in legacy setups, might additionally integrate with other NT4 services like RPC or SMB for configuration and logging. Because it operates over TCP, the protocol supports reliable transmission, which is critical when applying configuration changes remotely.
Given its role in network security infrastructure, the port is generally exposed only within trusted administrative networks or over secure out-of-band management channels. However, in many older deployments, insufficient segmentation might leave it inadvertently accessible to broader network segments, increasing potential attack surfaces.
Security Information
exposure of :1500risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
security averages 3.8 across 216 ports — this one sits 0.2 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
unofficial
used by convention, not registered — what answers here varies by deployment
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
Common Vulnerabilities:
- Unauthorized access due to weak or default administrator credentials
- Lack of encrypted communication, leading to potential interception or man-in-the-middle attacks
- Exploitation of unpatched NT4 vulnerabilities exposed via the management interface
- Remote code execution through unvalidated input in management commands
Common Mitigations:
- Enforce strong authentication policies with complex, regularly rotated passwords
- Restrict network access to port 1500 through internal firewalls or access control lists (ACLs)
- Use VPNs or encrypted tunnels to secure communication channels
- Regularly audit access logs to detect suspicious management attempts
- Upgrade or replace legacy NT4-based systems to support more secure management protocols
- Patch known system and application vulnerabilities promptly
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risk mix of the 8 listed
- caution100%
3 of 8 encrypted