File access permission with 777 will make things world writeable, it's an awful idea.
But in logstash 7.7.0~logstash 7.12.0 pkg(from https://www.elastic.co/cn/downloads/past-releases/), we find out two files in vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/bin/ with access permission 777.

Who knows why?