Script to create polyglot files. It combines the content of a PHP file with an existing JPG image.
More details on how this is used:
https://dariuspirvulescu.github.io/blog/an-intro-to-polyglot-files/
ruby phppoly.rb test.jpg my_php_exploit.php
This will not affect the input files. If successful, it will create two new files in both JPG and PHP format. Output file names can be configured by changing the out_filename variable's value (avatar by default).
There's a Proof of Concept created, more info on the POC directory.
Copy the two new files to the POC folder.
cp avatar.jpg avatar.php proof_of_concept
Inspired by https://github.com/Wuelle/js_jpeg_polyglot