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cgi-bin/printenv.pl

Security Researcher Detected: You might have ended up here because your site vulnerability scanner found something interesting. Hi! I'm a security engineer and I'm having a good time interacting with the people and bots that are interested in information security.

You will hopefully find this site is well-secured and I'm not interested in being hacked. I'm interested in learning about how people try to hack me, though.

What is this endpoint?

cgi-bin/printenv.pl

CGI scripts

What an attacker could do

This sample CGI script prints all server environment variables, leaking internal paths, software versions, and potentially secrets, and its presence signals an outdated CGI setup vulnerable to issues like Shellshock.

How to defend it

Delete sample CGI scripts shipped with the web server, patch bash/CGI handlers against Shellshock, and disable CGI execution where it is not needed.

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Learn More

Want to dive deeper into this topic? Check out the official documentation.

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