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Port 8500ColdFusion Server

Port 8500 is most commonly associated with Adobe ColdFusion Server's default web service for development and testing environments. It can also serve as the default port for legacy applications such as Duke Nukem 3D multiplayer hosting. Primarily, it functions as a development HTTP service that allows developers to create, test, and manage ColdFusion applications before deployment to production servers..

inWeb Services
transport
tcp

single transport

in transit
cleartext

payload readable on path

assignment
unofficial

used by convention

risk
4/10

caution

lookups
15,263

rank 213 of 993 · top 21%

Technical Details

what runs on :8500

Overview:

Port 8500 is predominantly utilized by the Adobe ColdFusion Server to host its built-in HTTP service. This port serves the ColdFusion Administrator console and allows developers to access ColdFusion Markup Language (CFML) pages during the local development phase. By default, ColdFusion's built-in web server listens on this port unless configured otherwise.

Typical Implementations:

Developers use this port to run and test dynamic web applications powered by CFML without the necessity of a dedicated web server such as IIS or Apache. It facilitates rapid prototyping, debugging, and iteration. Additionally, ColdFusion ships with embedded Jetty or Tomcat servlet containers to serve these pages through port 8500. The legacy Duke Nukem 3D game also occasionally uses this port for networked multiplayer hosting.

Protocols and Compatibility:

The service predominantly works over TCP as HTTP traffic, compatible with web browsers and HTTP clients. There is typically no UDP or SCTP traffic associated with this port's primary usage. Since it is a development port, it is rarely found exposed on production environments unless misconfigured.

Security Information

exposure of :8500

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

web services averages 3.9 across 112 ports — this one sits 0.1 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:

  • ColdFusion Admin consoles exposed publicly on port 8500 can become targets for unauthorized access and brute force attacks.
  • Older versions of ColdFusion accessible via this port may be vulnerable to known exploits such as arbitrary file upload, remote code execution, and directory traversal.
  • Running sensitive development services unencrypted increases susceptibility to eavesdropping and interception of credentials.

Common Mitigations:

  • Restrict access to port 8500 using network access controls, only permitting trusted internal IPs.
  • Always secure ColdFusion Admin interface with strong credentials and multi-factor authentication if possible.
  • Regularly update ColdFusion to patch known vulnerabilities.
  • Disable or bind the development server to localhost to prevent unintended external access.
  • Employ SSL/TLS tunneling if external access is required, despite the lack of native encryption.
  • Remove or shut down development services from production environments to reduce attack surface.

Related Ports

all 112 in web services →

the 8 most looked-up other ports in web services — 112 ports carry that label.

portservicerisk
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:9080Groove RPCcaution
:8881Atlasz Secure Servercaution
:80HTTPcaution

risk mix of the 8 listed

  • safe13%
  • caution88%

0 of 8 encrypted