FastCGI
Port TCP 9000
Theory
FastCGI is a binary protocol for interfacing interactive programs with a web server. It uses the 9000 port by default. Usually FastCGI only listen in localhost and It's quiet easy to make FastCGI execute arbitrary code.
Practice
If the PHP-FPM (FastCGI Process Manager) is running on the target system, we might be able to execute arbitrary command.
Resources
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