What is CGI/FastCGI in IIS? Web technologies like CGI (Common Gateway Interface) allow web servers (HTTP servers) to connect to external applications like PHP.

It affects server-side web applications that run in Common Gateway Interface (CGI) or CGI-like environments, such as some FastCGI configurations, along with programing languages PHP, Python, and Go.

According to security researchers from Symantec, the malware spreads by exploiting a vulnerability in php-cgi, a component that allows PHP to run in the Common Gateway Interface (CGI) configuration.

One of the vulnerabilities is known as CVE-2012-1823 and is located in php-cgi, a component that allows PHP to run in a Common Gateway Interface (CGI) configuration.

A new form of Linux malware is hijacking Internet of Things (IoT) devices made by one vendor by exploiting a common gateway interface (CGI) vulnerability.

Jack Wallen explains why you'd want to enable the Common Gateway Interface on an Apache server and then shows how to do it.