Title: Vulnerability Report for Ruby Gem cap-strap-0.1.5

Author: Larry W. Cashdollar, @_larry0<br><br>Date: 06/01/2014

Download: http://rubygems.org/gems/cap-strap

Gem Author:  aaronjensen@gmail.com

From: ./cap-strap-0.1.5/lib/cap-strap/helpers.rb

User supplied input isn't properly sanitized for #{user} and #{password} This can lead to command injection if this gem is used in the context of a rails application.

Secondly the password is exposed to the process table listing.   The password crypt hash is also going to have the same 'sa' salt every time.

022-def create_user(user, password)
23-  unless user_exists?(user)
24-    command = "useradd -s /bin/bash -d /home/#{user}"
25:    command << " -p `perl -e print crypt(#{password}, salt)`" unless password.empty?
26-    command << " -m #{user}"
27-    run "#{sudo} #{command}"
28-  end